tuned derv ZS update

p_b82 · 29-03-10, 12:37 PM

Well the car is broken again..

was thrashing it very hard on sunday and it has pissed all the coolant out of the expansion tank - via the pressure release valve.

It could just be the cap is faulty but i am a bit skeptical, but will be replacing it when i get my hands on one.

If it is not the cap, then it is HGF\headlift again.

At Matt reidy's recommendation i need to get the codes read to see if i am getting a -ve deviation error from the timing solenoid in the pump. If that is yes there is a problem, then what has happened is the car has been running with way too much advance and the cylinder pressures have gone up too much - blowing the gasket again.

So to fix that would need new pump or reconditioned one, head stripping and rechecking again, new belts and being put together once more.

If there is no -ve deviation error and the cap doesn't fix it then the problem lies elsewhere and will require some investigation. not sure where to start tho if something else causes it..

To say i am gutted is an understatment....

stamford · 29-03-10, 12:49 PM

Words fail me...............sorry to hear you are having problems. Let's hope it is trivial and easily cured.

p_b82 · 29-03-10, 12:54 PM

I hope it is easy, but not expecting it to me... when people say they saw steam coming out the back of the exhaust while i was using throttle says to me that the HG has gone again.

and that it used a further 3/4 of the expansion tank once i refilled the system getting me the the 30 miles back to bristol yesterday while only using up to 2500 rpm and part throttle susgest it is more than just the cap....

stupid car it really much prefers to live stationary in rally_matts workshop than to be driven by me it seems....