Honda VFR800 Coolant Leak Mystery
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- Опубликовано: 20 фев 2021
- #motourev #vfr800 #supportmvc
My 2008 Honda VFR800 developed a coolant leak from being stored during the winter. Since using and testing the vehicle I can't trace where the leak has come from!
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![HONDA VFR 800 - SUPERBIKE HANDLEBAR KIT (ABM) [ENG SUB]](http://i.ytimg.com/vi/ITHpujZRX8A/mqdefault.jpg)
I reckon you have nailed it mate, just the extreme cold causing a bit of contraction of the metal and rubber components allowing a small amount to leak past. If there was an actual leak then it would have done it when the bike was running as the coolant would be under pressure from the pump. Also FYI to those people that keep referring to an 'overflow pipe' from the coolant expansion tank, there is no such thing, the pipe that they are talking about is actually an atmospheric vent pipe which is there to stop the bottle trying to suck itself inwards when the fluid returns back into the system as it cools. The last thing you want is coolant 'overflowing' out of the bike in front of the rear wheel! Ethylene Glycol is incredibly slippery, hence why it is not allowed to be used in race bikes. If there is coolant coming out of that pipe then there is either an issue with the bike or the expansion tank was overfilled, the marks on the side of the tank are to be read when the coolant is at ambient temperature only! 👍
Perfect, thanks mate that makes sense. Yeah there’s been no leak from when running or when it has cooled down. I will keep checking over the next few days but the outside temperature has settle now above zero.
Love this colour on the vfr Craig.🤘
I live in Ontario Canada... ride a 2005 Vfr800.... I have the same issue every winter (even parked in the garage on the centre stand)... just clean it up and add a little coolant in the spring.
I've had a lot of vfr's over the years and never had any coolant leak, this would annoy me but wait and see if affects the running of the bike and if it happens again, could just be what you suspect and if it's happened to other owners bikes but it's new to me and I've been a vfr fan a long time, hopefully it's just something simple relating to the cold weather and the temp the bike is stored at, my bike is kept in a fairly cold tin roofed shed too but I throw some old blankets/sheets over her at night usually and def in cold weather, your videos are very relaxing, you'd have a great voice for story telling!! ride safe mate, hope it's ok for you.
Thanks pal 🤘🏻👍🏻 my shed is similar but plastic. Might try the blanket thing next winter. 😂😂 my voice! The wife says the opposite, says it annoying 🙈
Love this bike mate 👏🏽👏🏽👏🏽
its pretty typical for minor leaks to develop when very cold..pretty common here in Canada in the winter after sitting for extended periods and not typically anything to worry about.
Take care!
Cheers D reassuring to know 🤘🏻
My VFR 800 on a 07 plate as done this. I took the fairings off but nothing of note. Cleaned them up in case it happens again.
Greetings from Michigan, USA.
Please share any info on rear top box mount and top box you use??? Thanks
Hope the bike ok mate set the gopro up on time laplaps and see what happens
That's funny, had the same on my BMW on Friday after I took it out on Thursday for urgent supplies. It was just condensation which had got trapped in the lower part of the fairing, and the bike was on its side stand.
Mine was deffo green fluid
Hi Craig I had same thing on my Z800 a couple of years ago when it was cold in winter. I couldn't find exactly where it was coming from, cleaned it all and it never leaked again. Looks like it could be the same thing.
Cheers for info, must be some hidden secret
Could it be engine pressure, pushing it out of a loose pipe connection.
🤔 could be, I need to remove the fairing I think
Had a similar issue on my Tiger Sport ,ended up nipping up the jubilee clip problem solved 👍🏻
Will check the weekend, cheers pal 👍🏻
That's a mystery for sure.
Think its from the expansion tank tube from last time you were out thats what its for👍wouldn't worry about it why don't you take the right fairing off and check the level (put it on centre stand )
Yes gonna monitor and will check behind fairing in the week
We’re fortunate in Oz that we don’t get too many places with icy weather so this doesn’t happen. Looking under the bike you certainly pick up dirt and salt.
I would love to not have ice 🏍🤘🏻
@@Motourev get down here than......;)
@@i61w be there within the hour 😂🤘🏻
Hi mate,did ever find out what it was?. I just did a coolant change on mine this weekend and after getting the air out i noticed that the lower hose on the right hand radiator pushed abit of coolant up through the hose. Tightened the clip but didnt help. Ran the bike warm and it stopped. Now a couple of days later when its been cold,there is a small amount on the hose again.
Yes I found the problem and fixed it, it’s in the video after this
Was thinking it could be from the overflow bottle for the radiator coolant show me unlikely because the bottles normally at the very back
Coolant bottle is behind left front fairing directly above the leak
Could it be the header tank overflow pipe dripping ?
Expansion tank doesn't have a header would be higher than the rads
Doubtful to be a leak pal as would have been alot worse when system under pressure when running. Hopefully just something to do with sitting in cold then bring run.
Yes I think so as it’s bone dry now and when was under pressure
@@Motourev Excellent news pal
Night definitely looks like coolant leaking out does it does liquid have a touch of blue colour to if so it's coolant also noticed it seems to be in the clutch area where the hydraulic clutches
It’s more green than blue
Sometimes you have a green coloured fluid the man called blue colour is blue but that is a green too
P,s wouldn't worry about it too much I think that's. Like you said I think the pipes me to schenker little bit due to the extreme cold weather sound stupid but rubber does because it's been really cold hopefully that's all is
It will be a leak from your water pump weep hole mines a new bike its had a new pump under warranty they leak sometimes when standing a while poor design.