S-40 1.9d 66kw 1997y. cold start problem

[ma70]

It's hard to describe what I mean with the language barrier, but if you search in your own language for the equivalent to "wet compression test" hopefully you'll be able to see what I mean about putting oil in the cylinder.

The low compression on that 1 cylinder really would bother me more than anything else, as I say, it's 85psi lower than the others so there has to be either a problem with the gauge or a major issue with the engine. Low compression on 1 cyl. would also cause the misfire and possibly the stalling too. Before spending any money or trying anything else I really would either read how to do a wet compression test or ask somebody who knows how to do it.

[lauztuvas]

I understand abouth compresion test with oil. I bad describe what i want to ask.
Sorry. In my enginen is problems with piston or rings. Why?- becauce the motor at work temperature, i open plug( hole in enginen buttom - to fill oil) and from there is going steams. It says, that compresion is going across rings/ pistons.

[nmaric1993]

Originally Posted by lauztuvas

I understand abouth compresion test with oil. I bad describe what i want to ask.
Sorry. In my enginen is problems with piston or rings. Why?- becauce the motor at work temperature, i open plug( hole in enginen buttom - to fill oil) and from there is going steams. It says, that compresion is going across rings/ pistons.

From which country are you?
That steam can also come from bad valve rubber seal, if you understand me. Or bad valve clearance.... first check that

[ma70]

Originally Posted by lauztuvas

I understand abouth compresion test with oil. I bad describe what i want to ask.
Sorry. In my enginen is problems with piston or rings. Why?- becauce the motor at work temperature, i open plug( hole in enginen buttom - to fill oil) and from there is going steams. It says, that compresion is going across rings/ pistons.

Aha I think I understand now, some steam/fumes is normal with the engine running and warmed up, excess blow by from bore/piston ring damage would cause a build up of pressure that you could feel if you put your hand over the oil filler. If the pressure tries to blow your hand off the filler hole then there is likely to be excess blow by. This is not a definite test though & dry/wet compression tests are much more accurate.

One thing you could try (which has worked on a friend's Vauxhall Vivaro TD engine, a couple of years ago.) is to use this stuff http://www.ebay.co.uk/itm/Wynns-Stop...-/191009295738

The van we did this on had a lot of blow by, so much that it was pushing the oil dipstick out. as a last resort before buying a replacement engine I suggested he use the "stop smoke" *and drive the van hard for 20 miles or so*, in that case it worked, because the problem was a stuck piston ring caused by the engine spending a long time not being used. If your problem is the same then it might help & its cheaper than stripping the engine to look at the pistons etc.

[lauztuvas]

I am from Lithuania.
I was thinking about "motor doctor" like Wynns Stop Smoke . But at first i will do compresion test without and with oil. Then will be mo information. Also it is not hard to test valve clerance.After week or two i will write here how everythink goes. Thanks fot help.
Alsp, where was intresting start today. Today was -2celcium cold. I tryed first time- after two second engien not started. Then i tryed second time- enginen started rapidly and works well abouth one minute wery well. Only then cames my sytoms but not so strong like early times.

[nmaric1993]

You should also check idle, on lucas fuel pump at service that works that kind of pumps.

[lauztuvas]

Hi again. So, i made compresion test. Enginen after night, cold. I removed fuel injectors and made a test. Results is intresting. 3 cylinders show 24-25 bars compresion. 1 cylinder sgow only 8 bar. I was thinking that i made mistake in test. Tested 2or 3 times again- same result. Then i made test with oil. Same 3 cilinders shows abouth 32 bars. 1 cylinders shows only 10bars. This tests results says that my enginen cant work good. I understand this, becauce copresion in one cylinder is very low. But i cant understad this... - ater test i bring everythint to old places. Started car. Run enginen until 80celcius tempertature. Then i made idle corection ( with VADIS instruction). Leave car outside. In morning there was abouth 2 celcius cold (-2). Car started but not worked and after 2 second motor turned of. Then i depresed accelerator abouth 1 centimeter down( it is not good hight rpm to cold enginen). Started without problems, after 5 seconds i realyse accelerator and car worked like a clock. This i cant uderstand- how cold eginen can work very good with one bad cylinder inside.

[vtrsean]

could be heater plugs, try turning on the glow plugs 3-4 times before starting the engine to see if it helps, used to on my astra,

[lauztuvas]

Hi, old thread here, but I want to renew it.
My problems not gone, I dont repaired.
I have one question - how to check "advanced timing solenoid" on lucas fuel pump?
Why I want? Today, after engine start i tryed to break off this solenoid wire. Motor stoped shake, jerk, engine work become equal, normal, like must be( also engine timing became too early- thats good, I find out- it is normal, after solenoid turn of, engine timing goes to early position).
Thanks.

[gefterws]

have similar problem , almost same, only i have leaking advance timing solenoid, air is getting into a system and hard to start it. but talking about winter have same problem, difficult to start , glowplugs fine, hg fine, all kinda is fine but it doesnt start easy . solenoid is leaking diesel from wire but it works. have tryed to find new one without suckess.