Bought the bike used (5th Gen), so I can't say for sure, but I think they are the original radiator hoses. I am not having any issues with them, but I can't help but think being 17 years old that they should probably be replaced?
How long will the original hoses typically last?
Are all of the OEM hoses still available? If not, what are my options?
Also, how many radiator hoses are there in total?
Edited March 9, 2015 by CorkeyJust examine the hoses for cracking/dry rot, swelling, and damage from things rubbing on them. Don't forget to check around and under the hose clamps for damage. If you are planning on doing a flush, you can pull some of the hoses off and check inside the ends for deterioration and gunk buildup. I've never had a radiator hose let go without any warning, even on vehicles much older than this. Though it depends on how many miles and what kind of storage your bike was given, I think my 17 yr old hoses are it good condition.
If you are looking to replace them, AFAIK, all the 5th gen OEM hoses are still available from dealerships. If silicone hoses are your thing, there is a kit available from samco. I priced this out about the time of the group buy and I think they cost about double the OEM hoses. The silicone kit is about $400. Available here: http://racebikebitzusa.com/samco-hoses/Honda-VFR-800-1998-2001-10-Piece-Samco-Sport-Silicone-Hose-Kit&filter=ATTRIBU=Honda=25=Manufacture@@ATTRIBU=VFRSPER=21=Model
How difficult is it to replace them? Do you have to pull a lot things apart? Or is it simple?
Edited March 20, 2015 by CorkeyYou will have to drain the coolant.
The 3rd-4th gen have 2 small hoses under the carbs; so they have to be removed.
Donot know how this is for the fuel injected bikes.
My 4th gen is from 1997 and my bike will get its carbs cleaned and valves cheched for the first time next month.
So I considered changing the hoses, but the mechanic (who exclusively maintains VFRs) has yet to see a bike that required the hoses to be changed.
The SAMCO's are purdy, but a bit "too beaucoup" for me.
YMMV
You should replace them before they fail, or you could be riding being sprayed with boiling water & a huge cloud of steam. If you have a main hose split the system will vent in seconds & anti-freeze is extremely slippy so if it gets on rear wheel you will lose all grip !
So that's risk, you are right to be worried, when I removed mine at 10 years old, they were all perishing, unlikely to split for a while but I felt much better when they were replaced.
You need to remove the airbox & throttle bodies to get to the thermostat & the hoses attached to it, there are 5 that connect to the thermostat. All the others are easy to get to once the fairings are off.
Go OEM much cheeper, Samco kit is incomplete
MadScientistIf you are looking to replace them, AFAIK, all the 5th gen OEM hoses are still available from dealerships. If silicone hoses are your thing, there is a kit available from samco. I priced this out about the time of the group buy and I think they cost about double the OEM hoses. The silicone kit is about $400. Available here: http://racebikebitzusa.com/samco-hoses/Honda-VFR-800-1998-2001-10-Piece-Samco-Sport-Silicone-Hose-Kit&filter=ATTRIBU=Honda=25=Manufacture@@ATTRIBU=VFRSPER=21=Model
As mentioned in my "Yellow Peril" build thread, you can also use generic silicone hoses and bends, rather than fit a kit. There is one that is problematic, however, as it has slightly different IDs on each end (I think it is the one that wraps around the front of the stator housing), but mine doesn't seem to leak. Should be cheaper than the Samco set, but maybe not by enough to justify risking the potential leak.
Ciao,
How many hoses are there for the 5th Gen?
Best I can tell is there are 13 hoses? Is this correct? If so, how many of the 13 are actually necessary? I ask this because the Radiator Parts Fiche and Water Pump Parts Fiche show some breather and vaccuum hoses as well as the water hoses.
The following list is what I was able to find (13 parts). Am I missing something?
Should I also replace the thermostat?
1998 Honda INTERCEPTOR - VFR800FI OEM Radiator Parts
HOSE, RADIATOR (UPPER)
19505-MBG-000HOSE, R. RADIATOR (UPPER)
19506-MBG-000HOSE, RADIATOR MIDDLE (UPPER)
19504-MBG-000 HOSE, RADIATOR (LOWER)19501-MBG-000 HOSE, L. RADIATOR (LOWER)19502-MBG-000 HOSE, R. RADIATOR (LOWER)19503-MBG-0001998 Honda INTERCEPTOR - VFR800FI OEM WATER PUMP Parts
HOSE A, WATER
19525-MBG-000
HOSE B, WATER
19526-MBG-000
HOSE, WATER BYPASS
19527-MBG-000
HOSE, FR. HEAD WATER
19528-MCW-H00
HOSE, RR. HEAD WATER
19529-MCW-H00
JZHMadScientistIf you are looking to replace them, AFAIK, all the 5th gen OEM hoses are still available from dealerships. If silicone hoses are your thing, there is a kit available from samco. I priced this out about the time of the group buy and I think they cost about double the OEM hoses. The silicone kit is about $400. Available here: http://racebikebitzusa.com/samco-hoses/Honda-VFR-800-1998-2001-10-Piece-Samco-Sport-Silicone-Hose-Kit&filter=ATTRIBU=Honda=25=Manufacture@@ATTRIBU=VFRSPER=21=Model
As mentioned in my "Yellow Peril" build thread, you can also use generic silicone hoses and bends, rather than fit a kit. There is one that is problematic, however, as it has slightly different IDs on each end (I think it is the one that wraps around the front of the stator housing), but mine doesn't seem to leak. Should be cheaper than the Samco set, but maybe not by enough to justify risking the potential leak.
Ciao,
The leak is caused by the input stub to the head at approx 10 o'clock as you look at the alternator housing. It's not 25mm/1" like all the other main hose connectors. To fix this, I added a single piece of heatshrink on the stub & shrunk it in place with a hair dryer. This makes the stub 25mm OD. Had that on mine for 3 years & no leaks !
MohawkJZHMadScientistIf you are looking to replace them, AFAIK, all the 5th gen OEM hoses are still available from dealerships. If silicone hoses are your thing, there is a kit available from samco. I priced this out about the time of the group buy and I think they cost about double the OEM hoses. The silicone kit is about $400. Available here: http://racebikebitzusa.com/samco-hoses/Honda-VFR-800-1998-2001-10-Piece-Samco-Sport-Silicone-Hose-Kit&filter=ATTRIBU=Honda=25=Manufacture@@ATTRIBU=VFRSPER=21=Model
As mentioned in my "Yellow Peril" build thread, you can also use generic silicone hoses and bends, rather than fit a kit. There is one that is problematic, however, as it has slightly different IDs on each end (I think it is the one that wraps around the front of the stator housing), but mine doesn't seem to leak. Should be cheaper than the Samco set, but maybe not by enough to justify risking the potential leak.
Ciao,
The leak is caused by the input stub to the head at approx 10 o'clock as you look at the alternator housing. It's not 25mm/1" like all the other main hose connectors. To fix this, I added a single piece of heatshrink on the stub & shrunk it in place with a hair dryer. This makes the stub 25mm OD. Had that on mine for 3 years & no leaks !
I'll source some large ID heatshrink and have a go. Sounds like a neat solution to me.
Ciao,
CorkeyShould I also replace the thermostat?
As long as you have it all apart, yes. And don't forget a new radiator cap as well.
CogswellCorkeyShould I also replace the thermostat?
As long as you have it all apart, yes. And don't forget a new radiator cap as well.
Why a new radiator cap?
Because if you are going to waste money, you might as well go large?
If it ain't broke..... :-)
Btw, now you guys jinxed my redslut. If she now starts to leak, it will be on you!!! :-)
gigCogswellCorkeyShould I also replace the thermostat?
As long as you have it all apart, yes. And don't forget a new radiator cap as well.
Why a new radiator cap?
They deteriorate over time (rubber seal deteriorates - spring loses tension) and lose their ability to hold pressure. There have been threads about overheating that were solved with a new cap. They're cheap and a new one is good preventive maintenance.
After 55,000 miles 18 years not only were all the hoses replaced but also
all O rings to the spigots... along with new throttle body boots...
Mr.RC45's valley before and after 55,000 miles 18 years...
[image: post-3131-0-88725800-1426966499.jpg]
Whats left of the O ring
[image: post-3131-0-06369700-1426966523.jpg]
New hoses, O rings, throttle body boots
[image: post-3131-0-66287100-1426966548.jpg]
Larry, I'm surprised your intake ports aren't polished...
What do you use to clean out all that gunk ? Just a toothbrush and soapy water, or something else? I'd like to get mine cleaned up but I'm not sure what's safe to use around all the fittings and electrical connectors.
all this talk of failure....
since redslut will have her carbs pulled next month, I just might replace the hose(s) that are underneath thecarb only.
My reasoning is that all the others are easily accessible should one fail.
Looking at the fiche, it *appears* that the 4th gen/RC36-2 has 3 hoses underneath the carbs
Can anyone confirm?
[image: post-8974-0-79232300-1427040088.jpg]
So that would be #1 and 2x #9 O-Rings
Then near the thermostat
[image: post-8974-0-77661200-1427040826.jpg]
#18 and #19
[image: post-8974-0-66865000-1427040978.jpg]
hhmm contact us does not spell goodness re availability...
As said, am looking to replace only those hoses that are hard to get to; would require lifting the carbs.
As much as the SAMCO looks purdy, it is simply too much $$$
Here are the relevant pages from the 4th g FSM . . . It looks as though there is 1 hose from each head flowing in to the thermostat. Straight forward compared to the rat's nest of plumbing that the side mount rad bikes have.
[image: IMG_zpstctqxcjt.jpg]
[image: FSM%205-4_zps2kx1m401.jpg]
[image: FSM%205-6_zps2owhrrxe.jpg]
checksixWhat do you use to clean out all that gunk ? Just a toothbrush and soapy water, or something else? I'd like to get mine cleaned up but I'm not sure what's safe to use around all the fittings and electrical connectors.
Due to the problem of corrosion I don't recommend using soap and water
to clean your bikes ever... I first dry brushed the big stuff then use
an acid brush and Acetone for all the nook and crannies and finally 3M
micro fine abrasive pad soaked in Acetone to bring a luster to the metal...
Well, my problem is "solved"...
Those two little hoses are no longer available, so the old ones will stay in place.... :cool:
I just replaced all the hoses in the v and the two to the wax thingy and the thermostat. I figured while fixing a leak I'd replace stuff, preventative maintenance. It wasn't bad but did take time. I also had to custom fit two of the hoses that i didn't get from honda. While in there a K&N went in, replaced the coolant and oil. I figure i can reach all the other hoses on the outside of the motor.
Does anyone have a photo tutorial for a total hose swap on a 5th Gen?
Also, how tight is too tight for the hose clamps?
Edited August 29, 2015 by CorkeyCorkeyDoes anyone have a photo tutorial for a total hose swap on a 5th Gen?
Also, how tight is too tight for the hose clamps?
http://www.vfrdiscussion.com/forum/index.php/files/file/228-vfr800-9801-servicemanual/
Just download this .
tight enough is just before you strip the clamps and when your radiator pressure test says the system is good.. some experience may be necessary..
The two short hoses underneath the carbs on a 3rd-4th gen are not especially curved--you could easily replace them with short sections of straight hose. I was going to do just that until racebikebitz offered to send me those two hoses from their SAMCO kit.
Ciao,
I still have yet to do this project. Probably going to buy OEM parts, but might consider SAMCO hoses if all of the hoses are there. Does anyone know to which OEM part numbers these SAMCO hoses correspond? Also seems like there are a few missing, no?
Is it possible to check for leaks and dynamic (engine on) pressure test the system without having to reassemble everything (put throttle bodies and airbox back on) so I don't have to pull everything apart again if there is a leak?
[image: HON-62-CBR-929-Samco-500x500.jpg]
Edited November 13, 2015 by CorkeyI am finally getting around to doing this project. I just ordered all of the parts, but received an email from Motosport stating that the part # 19504-MBG-000 is no longer available. I looked around and could not find it on any other websites either. This particular part is the top straight hose between the radiators (5th Gen) and shouldn't be too hard to find another option, considering it is a straight piece of hose. However, all the other hoses are labeled "waiting on inventory" which leads me to believe they may not be available any longer as well.
What are my options in terms of replacing hoses for an aging 5th Gen if the OEM hoses are not available? I am aware of the SAMCO option, but have heard it may not include all of the hoses, some pieces may be too short plus it is very expensive.
Edited November 3, 2015 by CorkeyMohawk replaced his 5th gen's hoses with standard-size silicone hoses and elbows. I can't find the thread, but I think I linked to the post in my Beware the Yellow Peril build thread. There is one hose that has a slightly different ID on each end, but Mohawk's solution was to apply some heatshrink wrap to the water pump or whatever it was, but I didn't and didn't get a leak.
Ciao,
Just curious.
1. About how long should this job take me?
2. How do I dynamic (engine on) pressure test and the system to check for leaks without having to reassemble everything (put throttle bodies and airbox back on) so I don't have to pull everything apart again if there is a leak?
Edited November 13, 2015 by CorkeyCorkeyJust curious.
1. About how long should this job take me?
2. How do I pressure test and check the system for leaks without having to reassemble everything (put throttle bodies and airbox back on) so I don't have to pull everything apart again if there is a leak?
You need to email Grif :http://www.vfrdiscussion.com/forum/index.php/user/23210-gig/
He did it and ran into a couple of problems.
Use new hose clamps. Got it!
Also, if anybody has a brand new OEM Part #19504-MBG-000 they are willing to sell, let me know.
Edited November 12, 2015 by Corkey1998 VFR - Radiator Parts Fiche:
I need #23 HOSE, RADIATOR MIDDLE (UPPER) 19504-MBG-000 but it is NO LONGER BEING MADE
2003 VFR - Radiator Parts Fiche:
Does anybody know if #22 HOSE, RADIATOR MIDDLE (UPPER) 19504-MCW-D00 from the 6th Gen will fit the 5th Gen?
Same goes for the #9 CAP, RADIATOR 19037-GEE-710, will it fit a 5th Gen?
Edited November 13, 2015 by CorkeyCorkeyOn a Yamaha M1 they last about one season: [video: https://www.youtube.com/embed/YdBLh31pwZg?feature=oembed]Bought the bike used (5th Gen), so I can't say for sure, but I think they are the original radiator hoses. I am not having any issues with them, but I can't help but think being 17 years old that they should probably be replaced?
How long will the original hoses typically last?
Corkey1998 VFR - Radiator Parts Fiche:
I need #23 HOSE, RADIATOR MIDDLE (UPPER) 19504-MBG-000 but it is NO LONGER BEING MADE
2003 VFR - Radiator Parts Fiche:
Does anybody know if #22 HOSE, RADIATOR MIDDLE (UPPER) 19504-MCW-D00 from the 6th Gen will fit the 5th Gen?
Same goes for the #9 CAP, RADIATOR 19037-GEE-710, will it fit a 5th Gen?
CMS says they have one left: EUR22.
Ciao,
JZHCorkey1998 VFR - Radiator Parts Fiche:
I need #23 HOSE, RADIATOR MIDDLE (UPPER) 19504-MBG-000 but it is NO LONGER BEING MADE
2003 VFR - Radiator Parts Fiche:
Does anybody know if #22 HOSE, RADIATOR MIDDLE (UPPER) 19504-MCW-D00 from the 6th Gen will fit the 5th Gen?
Same goes for the #9 CAP, RADIATOR 19037-GEE-710, will it fit a 5th Gen?
CMS says they have one left: EUR22.
Ciao,
The part on their website is € 19,50 ($21 USD) + VAT € 27,50 ($30 USD) = € 47,00 ($51 USD). In my opinion $51 for one hose is a bit extreme. And that price doesn't include any possible customs/duties cost, so the overall cost would be even more.
Edited November 14, 2015 by CorkeyCorkey1998 VFR - Radiator Parts Fiche:
I need #23 HOSE, RADIATOR MIDDLE (UPPER) 19504-MBG-000 but it is NO LONGER BEING MADE
2003 VFR - Radiator Parts Fiche:
Does anybody know if #22 HOSE, RADIATOR MIDDLE (UPPER) 19504-MCW-D00 from the 6th Gen will fit the 5th Gen?
Same goes for the #9 CAP, RADIATOR 19037-GEE-710, will it fit a 5th Gen?
Not sure about the parts interchange, however I do distinctly recall that on the 6th gen Toro Supercharger kit a 5th gen right side rad was required. The 5th gen rad was connected to the stock 6th gen hose so the outlet diameters should be compatible. Also, since it's confirmed that a 5th gen engine will bolt directly in to a 6th gen frame, the distance between the 2 rads should be very close if not the same. So for around $20, it might be worth a shot if the 5th gen hose is not available.
Question #1: I am choosing NOT to "disconnect fuel tube and fuel return tube from the fuel pump" (section 5-67 of the service manual).
Is this going to be a problem?
Question #2: Section 5-67 of the 5th Gen Service Manual says be sure to relieve fuel pressure while the engine is off.
What do they mean and how do I do that?
Question #3: Section 5-67 of the Service manual says "disconnect the vaccum tubes and one-way valve.
What do they mean. Is this really necessary?
Edited November 15, 2015 by CorkeyCorkeyJZHCorkey1998 VFR - Radiator Parts Fiche:
I need #23 HOSE, RADIATOR MIDDLE (UPPER) 19504-MBG-000 but it is NO LONGER BEING MADE
2003 VFR - Radiator Parts Fiche:
Does anybody know if #22 HOSE, RADIATOR MIDDLE (UPPER) 19504-MCW-D00 from the 6th Gen will fit the 5th Gen?
Same goes for the #9 CAP, RADIATOR 19037-GEE-710, will it fit a 5th Gen?
CMS says they have one left: EUR22.
Ciao,
The part on their website is € 19,50 ($21 USD) + VAT € 27,50 ($30 USD) = € 47,00 ($51 USD). In my opinion $51 for one hose is a bit extreme. And that price doesn't include any possible customs/duties cost, so the overall cost would be even more.
I didn't say it made sense, I just said it was available!
Personally, I'd replace them all with silicone hoses. Of course, I did just that!
Ciao,
The service manual doesn't specify torque settings for the water joints. Any suggestions?
If they're steel bolts in to threaded aluminum (such as on heads / engine case, etc), if nothing is specified I use the same as for the bolts on the stator / clutch covers - IIRC 9 ft lbs.
Thanks.
I ended up using my wrist torque wrench. Tighten until it stops and then let my wrist gently tell me she is done. Hopefully that will be OK.
The water joints have O-rings. I cleaned the mounting surfaces with a cloth the best I could. There was some minor debris from the old o-Ring and a little corrosion from the coolant left on the mounting surface. I didn't use any solvents as I was afraid residual would end up on the o-ring and negatively affect it. Also on one of the water joints the mounting didn't have that usual slight bit of resistance before tightening (caused by the o-ring). It basically felt like it just mounted flush from the start and one of the bolts basically felt like it bottomed out and didn't have much resistance before it was tight. Hope this isn't an indicator that it isn't sealed.
Edited November 16, 2015 by Corkey