Hi,looking for a bit of advice... I have a water leak from back of engine somewhere,no water in oil and runs well... any suggestions has to what it might be?..many thanks

 

pipes to throttle body or possibly coolant transfer pipe which goes accross the top of engine

 

Ha I'm in the same boat . My leak is directly under the 2 sensors in the Alloy pipe , but it isn't those leaking , it seems to be coming from under the Alloy pipe itself , going to borrow a flexible camera to see .

 

If it's under the alloy crossover pipe then it's probably the rubber O ring

 

ive had 2 leaks in recent times with my bug sti. the first was where the water pipe Tee,s off to the throttle body. right at the T junction basically. we ended doing the throttle body bypass mod and cut it out. months later i got another one which was the crossover pipe which runs under the inlet manifold to under the header tank. my mech had to strip the top of the engine to sort it, he wasnt best pleased lol.

 

Rubber O ring ?

And yeah I'm suspecting to have to remove inlet manifold , another ball ache !

But mine doesn't leak consistently , doesn't leak as much if I use the car lots , more so when left stationary a day or 2 .

 

I recently had a leak turned out to be the hose from block to the turbo water feed £9 from icp but a ball ache to fit

 

Two on the crossover pipe:

 

yeah cheers bud, did some research earlier and found them, bought them along with manifold gasket, will tackle the job , yet another ball ache fix for something so tiny lol .mine is leaking directly next to the one on the left in that picture, grrrr

 

Yeh inlet manifold off is a pita,did mine while engine was out so was an easy job

 

Don't forget a little of this stuff along with your "O" rings. It is the Business. When I had my V5 classic engine out I changed all the cooling water system hard piping, x/o pipe, radiator bypass pipes etc. Also applied a little of this along with the new "O" rings. I also use this on water pump seals when I am in changing timing belt, water pump, idlers & timing belt tensioners. It is the business, belt & braces just gives you a little more protection over & above the seal or gasket. Was good enough for RR then it's good enough for me


My engine builder swears by this stuff


The worst thing about taking off that inlet manifold is getting the turbo intake pipe back onto the turbo housing round the whole 360 degree circumference, that bottom bit is murder, double check you got it on fully, use mirror or fingers to check if you have small hands that is, been there & got the T shirt

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For reference, here are some pics of my leak from under the Alloy cross over pipe

This one is right underneath at the back, the actual leak itself.




This one is from more directly underneath the 2 sensors, the result of the leak after a while