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wtfzzzz still runs
by
RabbitJockey
on 16 Nov, 2006 14:40
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so i got my rabbit back together and running and inspected. i drove it around giving varying loads and all that to hopefully help the rings wear in real nice like. now today on my way to school i was cruising around 55-60, and after a couple miles of this i felt it start pulling a little bit on its own and smoking, luckily this time i knew better and had it in drive, so i hit the brakes and it stopped, then i pulled over and pulled the ccv off of the intake and left it sit on top of the intake and drove the rest of the way to school. but this is very frustrating.
for anyone that didn't know, this car ran away so bad previously that it blew up, and now it has new rings in it (just a patch job not rebored or anything) anyways, oh yeah and it has a brand spanking new head on it.
Is there anything else than can cause blow by and make these things run away? or is it the piston rings. i was theorizing that it could be because the rings are not quite seated yet, and because it is an automatic, and on the highway this car is absolutely screaming, if i had to guess i would say the final gear in this 3 speed automatic is in between 3rd and 4th gear on my ff, closer to third than 4th surely. so in combination with it being screaming down the highway and its fresh rings, perhaps it has yet to seal nicely, allowing this to happen
so anyone with ideas please please please let me know.
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#1
by
SMOKEYDUB
on 16 Nov, 2006 15:01
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maybe the cyl walls are tappered severly or the crosshatching on cylinder walls is worn so oil stil slips past the rings.
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#2
by
Dr. Diesel
on 16 Nov, 2006 15:16
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new rings will not seat on an unhoned cylinder wall.
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#3
by
RabbitJockey
on 16 Nov, 2006 15:57
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which is funny cause i was like dad you wanna take the 10 minutes to take us to hone these. and he's like now... i think eventually the rings will seat? or i am just having wishful think, its hard to say though too since there is only 65 miles on it since the rings
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#4
by
jtanguay
on 16 Nov, 2006 16:46
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my first jetta i bought from my mechanic had new rings put in. he didn't bother honing. the car burnt oil for quite a while... maybe 6-8 months (i didn't do much driving.. just here and there)... month before my collision, it had stopped burning oil... don't know if thats seated or not, but i was really happy... then the burning sensation from losing that car that i worked so hard to 'break in' really sucked...
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#5
by
anarchyx34
on 16 Nov, 2006 16:54
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new rings will not seat on an unhoned cylinder wall.
Yes. I found this out the hard way. My Mazda with brand new pistons and total seal rings burns a quart of 20w-50 every 250 miles, because I didnt hone the cyls. I have to pull the motor out and do it all over again.
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#6
by
RabbitJockey
on 16 Nov, 2006 17:30
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i definetly wouldn't have used total seals with out honing
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#7
by
jtanguay
on 16 Nov, 2006 18:52
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my old car burnt 1 qt around every 600km if i drove it hard (50% of the time)
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#8
by
hillfolk'r
on 16 Nov, 2006 20:27
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i saw a friend of the boss do a 1/2 arse hone job once
he didnt wanna hone the cyls but decided he should after he installed the pistons
so he did
lol it was funny
and it ran ok too,i couldnt believe it
but thats hillfolk :lol:
he just wiped out the grit the best he could,and said"that extra grit will help the rings seat"
lol i was rofl
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#9
by
RabbitJockey
on 17 Nov, 2006 13:20
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haha that's grand. i'll just have to beat on it a bit and see what happens, till then the ccv is not on the intake
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#10
by
itzdshtz
on 17 Nov, 2006 18:30
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To seat the rings on propane engines they used to blow a powdered abasive cleaner like Ajax in the intake. I still have a Impco manual that describes that. It was also done on HD diesel engines.
Rev the engine up by hand and sprinkle some into the intake.
Just don't put too much in, you can really hear the engine slow down and than loosen up. Too much on a new engine and it may seize up!
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#11
by
jtanguay
on 17 Nov, 2006 19:15
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i took my old car out and drove about 160km/h for about 30 mins or so on the highway... that must've done something... (other than burning oil... :lol: )
it nearly cut my trip time in half!!! and i was surprised at how little fuel it used (new to diesels)
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#12
by
RabbitJockey
on 20 Nov, 2006 16:58
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been driving it all this week, seems like it keeps getting tighter, i put a catch on it, it's a soda bottle with some slashes and holes in the bottom, that didn't seem to catch anything, and sometimes you could see steamy kinda stuff coming out of it, so i stuffed some paper towels and tissues (just to get 2 different materials into it lightly, not crammed, but like 4-5 in there i have driven it almost 100 miles since then, and there is a bit of oil just where there hose enters the bottle. nothing is soaked or anything, i think the problem the first was that i took it on the highway when it barely had any miles on it, and that 3 speed automatic is geared horrible so with the motor all revved up it caused my little incident. for now i'm gonna keep the breather/catch on it and see how things go
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#13
by
jtanguay
on 20 Nov, 2006 21:14
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in my prev post, i was surprised at how little fuel it used, but was also surprised at how much oil it consumed... :lol:
the oil consumption gradually decreased
i was happy!
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#14
by
RabbitJockey
on 21 Nov, 2006 03:29
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i haven't been impressed with the fuel consumption on this car yet, seems to be in the 30 range, lower 30's too, but i guess that is the cost of an automatic... it will probably do a little better the more i drive it though... i'm hoping for atleast high 30s, thinking that isn't too optimistic. the car sure would be nice with a 5 speed.