lawnsy

iTrader: (1)

Just been out in it had it up to 165mph (on a private road of couse).....and when i pulled up outside my house it had a miss as though it was only running on 3, so i let it cool down then switched it off 5 mins later i went out to pull it on the drive fired it up and got a cloud of white smoke out the back then it cleared straight up but miss was still there

There is no water in with the oil so i am waiting for it to cool down a bit more so i can do a compression test..........

Hope the fu**ers ok so i can goto croft

Smit

iTrader: (5)

Take the plugs out and have a look at them....

lawnsy

iTrader: (1)

Will do i 5 it still a bit hot...............

Hope i not melted fuck all

lawnsy

iTrader: (1)

also there was some oil on the underside of the bonnet next to the little filter on the brether system

lawnsy

iTrader: (1)

Right i cleaned the plugs and it runs on 4 again so took it back out and its running fine but when i had the plugs out i done a comp test and these we the results:-

Cyl 1 = 95 psi
Cyl 2 = 80 psi
Cyl 3 = 70 psi
Cyl 4 = 90 psi

So think ill give it another month or 2 on the road then rebuild time before i put the gt30r on for next year......

fucking more money

Rs1

iTrader: (1)

Those result are a little shy imo. How long did you crank it over for? Did you have 100% thottle whilst cranking?

lawnsy

iTrader: (1)

yip engine was warm .........full throttle.............and give it a good few turns till the needle stopped going up

It is a low comp engine but i guess the rings are fucked as there is a bit smoke on over run to

Still runs mint though and pulls like a train .......

Turbo Zetec

iTrader: (1)

how low comp is it? as those readings seem suspiciously low to me...

lawnsy

iTrader: (1)

Yip they do to me..............i was planning on rebuilding it shortly anyhow be for i up the power

ballin

iTrader: (1)

correct me if im wrong, but a 'low comp' engine has absolutely fuck all to do with compression tests!?

_DAN_

Correct mate i always thought

Jim Galbally

agree

NUTTIN RILLA

What should the results be when doing a compression test on a cossie?

Rs1

iTrader: (1)

Theres no exact figure but imo atleast 10 bar(140psi ish).
A low comp build will have an effect on compression but will certainly not drop it anywhere near sub 100psi. Cam timing and spec will aslo have an effect on the compression results.

lawnsy

iTrader: (1)

well it's fucked got half way croft to croft and it dropped onto 3 and white smoke then as soon as i got on a open road and put me foot down it comes back onto 4 so...........rebuild time....


I thought that about compression but was not sure....but it does not matter now

rapidcossie

you should have never have driven it mate..

its quite possible that you might have gotten away with a rigs etc but you have probs just made it ten times worse?

lawnsy

iTrader: (1)

Don't mine i was planning a full rebuild anyhow over the winter ...........so just means it's going to be sooner rather than later.......

At least i still got to croft

dave cos4x4

iTrader: (5)

not good news mate.

lawnsy

iTrader: (1)

don't mind i still got there ...did not realise that was you on the track ..enjoyed watching you

ECU Monitor Enthusiast

iTrader: (1)

Change the plugs BEFORE talking it apart first

lawnsy

iTrader: (1)

already tryed it mate.....as soon as take foot off throttle it drops onto 3 then when i pull away i get a big puff of white smoke then runs shit for a bit then pulls back onto 4 ......

ECU Monitor Enthusiast

iTrader: (1)

Had the same issue on my car once.

You may have only done the headgasket as to me it sounds like its
leaking water into the cylinder.

Good luck with it anyway

dave cos4x4

iTrader: (5)

yes, that was me.

you may have damaged a valve, bent it a bit.

thats why its ok on boost,also the low compression tests.

i did it at Bedford track day.

lawnsy

iTrader: (1)

yip i said head gasket but block wire rung so guess im just thinking the worst............doing to drop engine out in the morning so ill keep ya posted. but comp test was only reading 68psi on number 3 cylinder

lawnsy

iTrader: (1)

never thought of that ..i did it racing a tuned evo 8 ....i was reading 170mph and was reving through passed 8000rpm in every gear

dave cos4x4

iTrader: (5)

deffo over revved it and kissed the valves.

lawnsy

iTrader: (1)

but would i get white smoke with a bent valve

dave cos4x4

iTrader: (5)

not too sure mate.

is there lots of it.

lawnsy

iTrader: (1)

Well i won and thats all that counts

If engine gone it just means bigger better faster

dave cos4x4

iTrader: (5)

well if you are happy to sacrifice your engine just to win.......

would rather have my engine.

lawnsy

iTrader: (1)

yip lots fill's the road when pull away

fired it up in the petrol garage when i took a lad i know for some chemical metal for his 3 door after he got a water leak ( the black one on the track)
and filled the forcort with white smoke

dave cos4x4

iTrader: (5)

oh well, you will have to take the head off anyway to check it.

hope its all re-usable.

lawnsy

iTrader: (1)

I know but the lad with the evo is like - no g reg sierra will beat me get a grip ive got a evo 8 with intercooler n big turbo ..........

so i upset him ....as for the engine i was planning a rebuild anyhow because im going to run a gt30 so its justy 2month earlyer than i planned thats all but it was worth i when i got back home and told him i beat him with a fucked head gasket

dave cos4x4

iTrader: (5)

good luck with the new engine then.

lawnsy

iTrader: (1)

cheers or and the red stuff pads are awsome no black powerder all over wheels and the bite is much better than the mintex that were in

dave cos4x4

iTrader: (5)