My Compression test results

Cylinder Number:

 

 

1. 150 psi
   
2. 000 psi
   
3. 155 psi
   
4. 160 psi
   
5. 165 psi
   
6. 085 psi
   

 

 

 

Spark plugs #2 and #6 are not happy either (See attachment)

 

So I guess it's 'head off' time.

Oh dear mate, dont look good.

 

Could you see down into the pistons to see what they are like?

Ouch

doesnt a 000 reading mean a lost valve or similar?

 

JB

doesnt a 000 reading mean a lost valve or similar?

Yeah I think so. Or a holed/broken piston.

Yeah I think so. Or a holed/broken piston.

 

what brand of fuel were you running?

 

I have heard of somebody who lost a piston because their fuel filter was clogged, might be worth checking that when the car is being fixed.

 

Terry also said he can get full engines at a reasonable price so worst case that might be the way to go.

 

Feel gutted for you, this would be my worse nightmare. I wouldnt be able to afford to get it fixed and the car would just sit there while I save up for a new engine.

 

JB

Could you see down into the pistons to see what they are like?

Not really. I did try with a flashlight but all I could see was shiny blackness. Like looking into a puddle of oil.

As soon as I withdrew plug #2 from the hole some of the same white smoke drifted out. The smoke smells of antifreeze so I guess the headgasket has gone as well. BHG wouldn't cause 0 psi on the compression test though, would it?

Like you say, you need to get the head off and see whats gone on before making asumptions. Are you going to take it apart yourself?

Ouch Look like 2 Cyls down there and the plugs confirm it ....well its now down to the lesser of 2 evils..Head off ..and see if you have taken out valves ( wish and hope ) or worst worst case is fried pistons and scored bores.....so sorry to hear this you need it like a whole in the head .

Again

 

I wouldn't have thought compression would drop to 0 just on a HG, but may be wrong.

 

If you can smell anti-freeze, and HG isn't gone....

Don't panic yet, it's still all inconclusive. Get the head off ... you know Tel will sort you out with a new shortblock if you need it. Arnout does exchange heads for VVTi's with special bits

 

If the engine let go you can guarentee the turbo's are dead too. But this is what this community is for...we'll find you the bits and save you a packet over Mr. T. But I'll say this now, don't scrimp, pay once fully and dont cut corners or you'll pay twice.

what brand of fuel were you running?

It was an Elf petrol station, JB. I was desperately low on fuel and was going to do a 'splash and dash' to get me to a Shell/Esso garage but I saw they did SUL97 and thought it would be OK just this once.

 

It wasn't even cheap! It cost over £60 to fill her up.

ELF & TOTAL are the same, I've used TOTAL on mine and she's still here.

ELF & TOTAL are the same, I've used TOTAL on mine and she's still here.

 

Indeed, Lord Mycroft used to say that Elf/Total was the best fuel around. The only problem with Elf stations is they arent normally busy enough to turn over enough fuel so it could be it had degraded a little. I still think theres something else to it though, either a bad fuel pump or blocked fuel filter which caused it to run lean, and combined with the heat it just killed it. Im sure I lost my UK spec turbos last year because it was a seriously hot day and the cooling just wasnt there.

 

JB

Would a low mileage (less than 36,000) 1998 car have a tired fuel pump or clogged fuel filter? Seems unlikely but anythings possible I suppose.

Indeed Mycroft did used to bang on about that

 

The cause could be so many things....getting the injectors flow tested would be good, same with the pump and the filter. The FPR, could have locked up in the heat. Could have just been a build up on the plugs inhibiting the spark...Jake, does it have an atmospheric BOV? An atmos BOV could have caused the issue cause this car has a MAF, everytime the BOV lets go the fueling would have been mad rich. Have to say it never killed my VVTi before my upgrade, but I really noticed it once I put the 650's in.

 

Anyway, Jake needs to do lots more investigation work before we go bonkers on ideas why it happened.

Ouch mate, this hurts.

The missing bits from the plugs could potentially render the head useless, and damage the turbos too (you got one in each set of exh runners, so both turbines could be shagged)

 

Sux big time.

Would a low mileage (less than 36,000) 1998 car have a tired fuel pump or clogged fuel filter? Seems unlikely but anythings possible I suppose.

 

That's why I thought of injectors...cause they've not been used much IYSWIM.

By the way it was a Total garage. I only said it was an Elf garage because I looked up the address on http://www.southampton.gov.uk/environment/environmentalhealth/pollution/PartB-Authorised-Processes-in-Southampton.asp

and it said 360 Hill Lane, Southampton is owned by Elf Oil UK Ltd.

As Alex said, Elf own Total so that makes sense.

Would a low mileage (less than 36,000) 1998 car have a tired fuel pump or clogged fuel filter? Seems unlikely but anythings possible I suppose.

First thing I did when I bought the car was change the fuel filter, right after the oil change. You never know.

 

As for fuelling in general, without a wideband you're in the dark really.

 

So much for my theory of the VVTi 'overprotective' ECU, eh?

Sorry to hear about this mate. Hope you get it sorted out and keep us updated.

 

cheers

So much for my theory of the VVTi 'overprotective' ECU, eh?

 

It can't perform miricles.

Jake, does it have an atmospheric BOV?

God no. I can't stand the things.

Anyway, Jake needs to do lots more investigation work before we go bonkers on ideas why it happened.

'Head off' is the next step, right?

I haven't had a car cylinder head off for like 15 years. I've done a few though. Anyone know of a "How to take your Supra head off" guide?

 

I'm not looking forward to this job but hopefully with you guys support I'll struggle though.

 

Thanks fellas, you're all stars