|
| Thread Tools | Search this Thread |
![]() | #1 | ||
Join Date: Mar 2010
Posts: 13 Thanks: 1 Trader Rating: 0 ![]() | Compression test Hi all, Having a slight issue with a smokey 1.2 16v engine. There seems to be a bit of blue/grey ish smoke coming out of the exhaust when revving over 2000rpm. Just done a compression test and the results are as follows. Cylinder 1 - 210psi Cylinder 2 - 195psi Cylinder 3 - 200psi Cylinder 4 - 210psi Doesnt seem very far out to me, what should it be roughly on a ood engine? also the car hasnt been run for a while and had a misfire problem which has been sorted.
__________________
| ||
![]() | ![]() |
![]() | #2 |
Join Date: Mar 2002 Location: Lake District....Moist
Posts: 23,487 Thanks: 1152 Blog Entries: 3 Trader Rating: 1 ![]() | Re: Compression test I presume this was the dry test. Did you have a wet test done as well? Cheers SPD
__________________ |
![]() | ![]() |
![]() | #3 |
Join Date: Jul 2009 Location: Manchester
Posts: 4,479 Thanks: 213 Trader Rating: 1 ![]() | Re: Compression test Should all be very close together and one of my cars runs at 14 Barrs, another runs at 12.8 barrs. Depends on the engine, too much difference there and to me looks like a head gasket job! Heater working, any loss of fluid levels?
__________________ Any MK2 punto parts needed? Let me know! ![]() I have 2 punto's worth of parts for sale |
![]() | ![]() |
![]() | #4 |
Join Date: Mar 2002 Location: Lake District....Moist
Posts: 23,487 Thanks: 1152 Blog Entries: 3 Trader Rating: 1 ![]() | Re: Compression test They are close enough and all around 13 bar. Cheers SPD
__________________ Last edited by rallycinq; 25-03-2010 at 14:50. |
![]() | ![]() |
![]() | #5 | ||
Join Date: Mar 2010
Posts: 13 Thanks: 1 Trader Rating: 0 ![]() | Re: Compression test
__________________
| ||
![]() | ![]() |
![]() | #6 |
Join Date: Mar 2002 Location: Lake District....Moist
Posts: 23,487 Thanks: 1152 Blog Entries: 3 Trader Rating: 1 ![]() | Re: Compression test I'd not bother really, just wanted confirmation that was the dry one. Compressions are all within reason, nothing to worry about there. Blue/gtey smoke could be unburnt fuel burning off, if you've had an ignition derived missfire a heap of fuel will be all over the inside of the exhaust system. If the car hasn't been run for a while, check your levels and get it warm then out and give it the full moooo. Cheers SPD
__________________ |
![]() | ![]() |
![]() | #7 | ||
Join Date: Jun 2006
Posts: 788 Thanks: 48 Trader Rating: 0 ![]() | Re: Compression test compressions are ok. Get someone to follow you along a fast road, get some speed up and and allow engine to overun as it slows, stick the throttle down hard and watch for blue smoke. If evident, then its oil control rings or valve stem seals (if used). Tony.
__________________
| ||
![]() | ![]() |
![]() | #8 | ||
Join Date: Jun 2006 Location: Pembrokeshire
Posts: 643 Trader Rating: 0 ![]() | Re: Compression test agree; figures are all within 5% of the average so are ok
__________________
| ||
![]() | ![]() |
![]() | #9 |
Join Date: Jul 2009 Location: Manchester
Posts: 4,479 Thanks: 213 Trader Rating: 1 ![]() | Re: Compression test Ahh sorry, I was in a rush before, I only know barrs so don't know the difference between psi. I just saw 2 of the together with lower pressure. 15 psi difference may not be anything then! ![]()
__________________ Any MK2 punto parts needed? Let me know! ![]() I have 2 punto's worth of parts for sale |
![]() | ![]() |
|
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
Thread Tools | Search this Thread |
![]() | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
![]() | prompon | Cinquecento / Seicento | 13 | 01-03-2010 17:21 |
![]() | Brin | Punto (Mk2/2b) | 16 | 05-02-2010 21:59 |
![]() | steve_uk | Bravo / Brava | 4 | 15-11-2009 23:49 |
![]() | Rob-mint-mk1-uno | Uno | 5 | 28-09-2006 14:33 |
![]() | 99sei | Cinquecento / Seicento | 48 | 22-08-2006 22:43 |