goose21

My car stalls when i just let it idle. And when it idle's @900rpm i have a very low vacuum between 14-15. And it sounds like's it misfires. I've done a compression test and this whas the result.
1 150psi
2 95psi
3 100psi
4 100psi

Then we did a leak down test and then this where the results
1 90%leak
2 75%leak
3 80%leak
4 80%leak

But when i drive the car it runs fine, it doesn't smoke, it still fast(drove ,5sec faster then when the car was oke on the 1/8 this weekend)
Only in low rpm's it runs bad. So what could it be???

wantboost

iTrader: (2)

was the compression test done at WOT? Those numbers sound way low.... all of them, and the leakdown is horrible. sounds like your rings are ****..

goose21

Yes the compression test whas done on WOT and a warm engine.
But wouldn'd my car smoke like hell if my rings are gone this bad??(it doesn't smoke at all, not even a little)


thanks jose

veggiemaster

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by wantboost &raquo;</TD></TR><TR><TD CLASS="quote">was the compression test done at WOT? Those numbers sound way low.... all of them, and the leakdown is horrible. sounds like your rings are ****.. </TD></TR></TABLE>

it sounds like you have some serious blowby. and it wouldnt necessarily smoke. I had a cylinder in a b18a that was pretty shot and I didnt have any noticible burn. But also, have you checked the basic things? like your plugs, how are they? you could also be running way lean.

wantboost

iTrader: (2)

have you checked the cam timing? it could be off a little, that can affect numbers a bit

goose21

The plugs are good(light brown). And the cam timing also. I've also done a valve adjustment. Couldn'd it be that my valves are burned or something???

wantboost

iTrader: (2)

you could have mis-adjusted the valves... the reason it oculd be pulling shitty vacuum down low is because the valves arent opening or closing fully

goose21

That whas i thought. But i have done a valve adjustment sunday.


Modified by goose21 at 11:19 AM 5/17/2005

goose21

bump