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leaky injector flood motor?
by
jtanguay
on 19 Apr, 2006 14:46
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is this possible? i did not notice black smoke out the tailpipe...
what i did notice is that the oil cap was rumbling (worked its way loose somehow) because I KNOW i tightened it the last time i topped it off! is this unusual? I didnt drive the car like a maniac or anything...
oh yea i forgot to add... i checked the oil and it was over the full line and there is evidence of oil leaking all over... this sucks!!!
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#1
by
wyldman
on 19 Apr, 2006 15:17
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Where are the oil leaks.You shouldn't have any major leaks,as we just replaced most of the gaskets.
Could it all be from the oil cap being loose ?
Oil shouldn't be overfull,as long as your checking it the same way everytime.If you check it cold,after it's been sitting,it will be a lot higher thatn when it's hot,and just shut off.
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#2
by
jtanguay
on 19 Apr, 2006 15:27
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i always put the cap on nice and tight, and that was about 4 days ago that I even topped it up a little bit (after a nice warm drive)
it really has me beat
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#3
by
tylernt
on 19 Apr, 2006 19:41
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Maybe your oil cap needs a new gasket if it is coming off. A springy gasket the proper thickness should keep it from unscrewing unintentionally.
What may have happened is you may have overfilled because you were parked on an incline? I beleive there is also a known issue with PD (or is it TDI) leaking fuel into the oil, but no IDI has that problem that I am aware of.
Oil leaks can be caused by excessive crankcase pressure. Unhook your breather hose from the intake manifold end and blow into it (ew), it should not be obstructed.
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#4
by
andy2
on 19 Apr, 2006 20:16
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Is the engine missing or running rough.Mabye one cyl has a problem thats letting unburnt fuel to get past the rings,Mabye that would explain your oil level issue and possibly excessive crankcase pressure ?Just a couple ideas.
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#5
by
fspGTD
on 19 Apr, 2006 21:42
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Moved to troubleshooting. Not IDI engine / power enhancement related.
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#6
by
jtanguay
on 20 Apr, 2006 15:22
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thanks for the input. I filled the car on level ground, and just below the full mark to be sure. When i popped the hood my oil was over the full line, and there was oil all over the cover... maybe it was the gasket that was blown, but why all of the excessive oil? I'm near positive that my injectors suck, but suck this bad???!!
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#7
by
jtanguay
on 23 Apr, 2006 14:19
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well after some conservative driving and draining/refilling oil to proper level, car seems fine. I'm pretty sure theres a few injectors that are shooting too much fuel :evil: and its just not burning fast enough, thus mixing with my oil and causing some insane pressure in the engine :cry:
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#8
by
745 turbogreasel
on 23 Apr, 2006 15:09
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I had the goood fortune to install an injector with a very faulty tip on a fesh head.
It ran poorly with a ton of smoke for about a half hour before buning a hole alll the way through the head into the water passage.
I knew it was FUBAR, and revved to ~4500(it wouldn't go any higher) for about 30 seconds, and there was a loud POP!, followed by coolant every where and a stall.
That is the only time I have distinctly heard the combustion seal fail.
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#9
by
mtnsammy
on 25 Apr, 2006 07:34
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On my first 1.6TD i had bad, real bad injectors. They constantly leaked down after I turned off the motor and filled the cylinders. The next day I would fire up with no smoke. I thought this meant no leakdown. Wrong. Overnight the fuel on the pistons would run down into the crank past the rings on the pistons. After a week of leakdown I had almost an extra quart in my crank and some very diluted oil.
I removed the injectors and soaked them seat down in autotranny fluid and it worked until the motor eventually blew. I also ran 1 quart tranny fluid in the fuel tank with about 3 gallons of gas. It was real smokey but ran better for a while.
Hope this helps. When it comes to bad luck I have had it all. I am one lucky guy i guess.
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#10
by
jtanguay
on 27 Apr, 2006 16:56
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thanks for the tips! I think I'm going to stick it out with this motor, and drive it REAL easy...
and make short trips so the motor doesnt heat up too much. I'm going to gather a bunch of parts, including rebuilt injectors at $110 a piece :cry: and maybe get my injection pump rebuilt as well, and rebuild a block and get it done right. With my new job I can afford it
oh yea... I wonder how long my engine would last on diluted oil?
I guess I should look on the bright side... at least it isnt gasoline lol
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#11
by
mtnsammy
on 28 Apr, 2006 00:50
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#12
by
addautomotive
on 28 Apr, 2006 09:03
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thanks for the tips! I think I'm going to stick it out with this motor, and drive it REAL easy... and make short trips so the motor doesnt heat up too much. I'm going to gather a bunch of parts, including rebuilt injectors at $110 a piece :cry:
Crazy talk! Send 'em to Smog, he'll put GTD nozzles on them and pop test them for about $200 for the set.
http://www.vwdiesel.net/phpBB/viewtopic.php?t=998
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#13
by
jtanguay
on 28 Apr, 2006 19:31
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I just pm'ed smog, thanks for the tip! I thought Smog could not pop test them. If he can, then that makes it so much easier. The car is running ok, but man when she warms up... its a total bog.. cant wait to replace the injectors.
one thing that I'm wondering about now though... is the diesel return lines. I remember driving with one of them break and start leaking diesel. And after I had some repairs done, all of them needed to be changed. I don't think its just a coincidence that my injectors seem to be garbage now...
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#14
by
chrissev
on 29 Apr, 2006 06:39
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The return lines are a one shot deal. Take them off and you need to get new ones. They only seal once. I've seen mechanics put them back on again and say "everything will be fine" and a week later, diesel all over the front of the engine. The line costs about $10 a metre at the VW dealer so you can replace all the lines yourself really cheap. I see you are in Oshawa, go down to OWASCO (next to the 401) and get yourself some new return line. They have lots of it.
Re: once the car heats up, the engine really bogs: I assume your car is normally aspirated (ie, no turbo?) What happens is that the intake for the air is located over top of the engine, and once the engine heats up you are getting hot air coming in the intake from the air that blows through the radiator and the heat coming off the engine, then it gets further heated by the proximity of the exhaust manifold to the intake manifold which causes you to have very hot air going into your engine. As we all know, when a gas expands, it becomes rarified (less air molecules per square inch) so the hotter it gets, the less oxygen you are getting into your engine. Less oxygen means less combustion. So that is the problem you are having. Solving the problem is pretty easy. First off you want to re-route the air intake. I find that taking the air from the inner fender works well (how it was set up on my jetta). That way you get cool fresh air no matter how hot the engine compartment gets. You will find that your engine has a lot more power when it is hot. With turbo cars what people do is to install an intercooler to further cool the air before it gets to the cylinders, but if your car doesn't have a turbo this wouldn't be an option for you.