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Matt, Mechanical Engineer
Category: Car
Satisfied Customers: 22769
Experience:  BEng hons Mech engineering, in auto industry 22 years
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I have a t25 Vw 1915cc. Petrol 1987 I am getting a lot of

Customer Question

I have a t25 Vw 1915cc. Petrol 1987
I am getting a lot of water in the petrol
I got it out I think but the two celinders
On the left keep brakeing down
I've put on new plugs leads cap rotator arm etc
Also do you no what the compression
Should be
I took it on a 100mile run it was fine
Then after that it keeps letting me down
Submitted: 1 year ago.
Category: Car
Expert:  Matt replied 1 year ago.


I'd agree that doing a compression test across all cylinders is a good idea

as they should all be within 10-15 psi of each other

and a healthy bottom end should be 130psi +

and are you losing any water ? as if the head is cracked then it will be dribbling water into the cylinders and creating a misfire

if you are losing water then its well worth some of this product, as I've used to seal failing head gaskets with this in the past

Customer: replied 1 year ago.
Can water gett into the tank if the heads or casket has gone ??
Expert:  Matt replied 1 year ago.


no, there's no way for engine coolant to get back into the fuel tank so its likely that the gasket on the fuel filler neck is failed or the cap gasket is cracked if you have water in the fuel

or the tank is rusted out and so allowing water in that way

Expert:  Matt replied 1 year ago.


do you still need help?

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