Leaking coolant

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Wicky
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Re: Leaking coolant

Post by Wicky »

Cover the bike/engine/radiators with talcum powder then go for a spin - hopefully that'll help you visually id where it's pissing out.
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Steve6088
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Re: Leaking coolant

Post by Steve6088 »

I've eventually got to the bottom of the leak. Unfortunately it appears to be the head gasket leaking.

I tend to try and fix most things myself but I don't think I have the time or skills to replace this. How big of a job is it?

Considering the bikes value, I'm going to have to decide whether it is worth while fixing it. :(
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Jazzscot
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Re: Leaking coolant

Post by Jazzscot »

Is it the front or back head that is leaking?
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Steve6088
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Re: Leaking coolant

Post by Steve6088 »

Just the back head.
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Jazzscot
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Re: Leaking coolant

Post by Jazzscot »

Piece of piss to do yourself mate as you can get really good access to the back one. Seat off, tank off remove the carbs and plastic cowling and rear exhaust.

Then you pretty much have full access to the rear head.

Someone will be along soon to confirm my ramblings.
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Steve6088
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Re: Leaking coolant

Post by Steve6088 »

http://www.davidsilverspares.co.uk/VTR1 ... art_24788/

seems cheap enough to actually buy the thing
tony.mon
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Re: Leaking coolant

Post by tony.mon »

As above advice, that's about all the job is, but of course you need to reset the cam timing once the head's back on.

Before taking the rear head off, set the engine at top dead centre with the rear cam lobes facing up and at angle towards each other, then take out the rear cam chain tensioner.
This allows you to take out the cams, don't forget to tie a bit of plastic twine around the cam chain so you can pull it up again.
As long as you don't turn the engine over during the rebuild, it will still be in the correct place to reset the cams so that they are in the same position, with the lines on the sprockets level (or as near as dammit) with the top surface of the head.

BTW, no gasket sealant on the new head gasket; they come with it already on.

It only takes half a day, and is pretty straightforward.

You'll need a good strong 1/2 drive socket set for the 14mm headed head bolts, and there's also two 10mm ones hidden in the cam chain tunnel that need to come out first.

Tighten up the head bolts as tight as you can, without using extensions on the socket set handle.
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