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blow by on a 2H
Posted: Thu Oct 21, 2004 6:43 pm
by sambo
If the compression is still good, is it possible for blow by on a 2H to be caused by a cracked head gasket. Or is it still more likely to be rings. The radiator isn't bubbly.
Posted: Thu Oct 21, 2004 8:51 pm
by low40
compression is bypasing the rings & going into the sump
how many ks the engine got wynns has an oil treatment for petrol
but dont know about diesel give the tech side a call
ps
what set up you got the truck ie tyres & susp
cheers
Posted: Fri Oct 22, 2004 12:05 am
by sambo
it has done 420k but has been rebuilt twice. the previous owner was a mechanic and i have full receipts, so i expect he would have done it properly. I am expecting that it is rings like you said but i was just hoping that it was something simplier.
Posted: Fri Oct 22, 2004 8:56 am
by Reddo
low40 wrote:compression is bypasing the rings & going into the sump
If this is the case (rings gone) you usually get blow by in the sump. You can check it by pulling out the dipstick when the motor has been running. If you get blow by coming out of the dipstick, it’s a usually and indication of that the rings or bore is worn.
Posted: Fri Oct 22, 2004 9:25 am
by sambo
does anyone know about how much for a set of rings for a 2H. I can put them in myself. i just want an approx. figure to work out if i can afford it now or not.
Posted: Fri Oct 22, 2004 10:54 am
by dumbdunce
sambo wrote:does anyone know about how much for a set of rings for a 2H. I can put them in myself. i just want an approx. figure to work out if i can afford it now or not.
rings will probably be pretty cheap but it's a PITA to do them, could do it in the truck but have to pull the head and sump. give SMS Diesel a call for a price, they will probably give you an option of factory or aftermarket.
I would strongly recommend using one of the engine flushes available, or even just using kero or diesel, to see if the engine is just gunked up and the rings are sticking. I am a bit confused though - if your compression hot and cold is within spec the blowby shouldn't be too bad. is the motor turbocharged?
Posted: Fri Oct 22, 2004 12:43 pm
by sambo
Yes the motor is turbo charged. I don't have the actual figures of the compression. When I had the car looked over by the RAA 2 years ago when i bought it they tested the compression and said it was good. But they also said that i was getting blow by.
I know that i am now getting a fair bit of blow by.
If i use diesel to flush the engine. What ratio of diesel to oil do i use or do i just put it in straight. How long should i run the engine to flush it out.
If this doesn't work i might get the compression tested again and get the actual figures this time.
Posted: Fri Oct 22, 2004 1:28 pm
by dumbdunce
sambo wrote:
If i use diesel to flush the engine. What ratio of diesel to oil do i use or do i just put it in straight. How long should i run the engine to flush it out.
warm it up fully first, throw in say half a litre, let it idle for 10 - 15 minutes then drop the oil and fit a fresh filter. I don't know if it works as good as that FLOC or whaever it's called but I have successfully de-sludged a flogged out 2H and a 2L-T just using diesel.
Posted: Fri Oct 22, 2004 8:35 pm
by low40
possible when the prev owner rebuilt only done rings as well
420k & two rebuild for 2h shit
possible bore worn & that is were you are getting blow by would rip her out & check bore with internal mic
last build might have been shody there are mech & then there are mechanics if you are going to do a rebuild then do it wright
Posted: Fri Oct 22, 2004 9:27 pm
by sambo
I am pretty confident that he did it properly, he was pretty fussy about his cruiser. He even kept a log book of every little thing he did to the car over 10 years. I mean every little seal, part and drop of oil. Apparently he loved the cruiser as much as his wife and she made him choose.
Posted: Sat Oct 23, 2004 5:06 pm
by low40
wrong decision you can get another wife but a good 40 is hard to come by
Posted: Mon Oct 25, 2004 11:00 am
by sambo
Dont forget, a good wife can supply you with food and beer while you work on the cruiser. And the back seat is just no fun by yourself.
Posted: Mon Oct 25, 2004 11:09 am
by bad_religion_au
sambo wrote:Dont forget, a good wife can supply you with food and beer while you work on the cruiser. And the back seat is just no fun by yourself.
no wife does not = no one
Posted: Mon Oct 25, 2004 8:16 pm
by eliteforce32
no wife does not = no one
stop thinking of ur hand........and ur dog doesn't count