Author Topic: bad night last night....turbo glowing red and sounds like loss of compression  (Read 2906 times)

June 16, 2013, 09:59:12 am

audilvr

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I was pushing it way too hard on the highway last night. started smelling oil and when I popped the hood the manifold and turbo were glowing red. I had a temp reader with me... the head was over 150 degrees and the turbo was beyond reading. when I rolled it over later it sounds like I lost compression in a couple of cyl. i'm guessing warped head and/or melted valves. should I even consider trying to fix it? can the turbo survive that kind of heat? I have another head I can throw at it but I don't have another turbo.


1991 golf 1.6 td
1992 golf diesel coupe
1986 audi cgt....RIP
1994 audi 100q....RIP
99.5 auto tdi golf coupe
2002 golf tdi
2004 auto tdi jetta wagon

Reply #1June 16, 2013, 10:00:20 am

audilvr

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it's a high mile 1.6 td
1991 golf 1.6 td
1992 golf diesel coupe
1986 audi cgt....RIP
1994 audi 100q....RIP
99.5 auto tdi golf coupe
2002 golf tdi
2004 auto tdi jetta wagon

Reply #2June 16, 2013, 10:41:44 am

Gizmoman

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    AAZ 1.9, HE 200 Turbo, 82 Vanagon, AAP 5 speed
What turbo do you have?
There's plenty of folks here that know more than I do, but my guess is that the rings may have become part of the pistons :(
I highly recommend an EGT sensor and gauge so you can keep on eye on exhaust temps. It must not be stock, i,e, you must have installed a boost controller or something that allowed higher than stock boost or you are over fuelling. Doing anything like that without an EGT sensor is a ticking time bomb (ask me how I know).

Did you loose water? I think some turbos can survive a red hot situation but your oil should be changed ASAP. Pull the intake off the turbo and see if you can move the shaft. A K14 has a slight wobble even with new bearings, but the impeller obviously should never touch the housing.
Jim W - 82 Vanagon Westy - AAZ 1.9, Mild head port, Cummins Holset HE200WE turbo, Frozen Boost WAIC, 10" Charge-pipe intake, Ball bearing IM shaft, Giles Pump, 215/70R16, AAP 5 speed Trans. 22 lbs max boost

Reply #3June 16, 2013, 11:30:35 am

libbydiesel

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I'd want to pull it apart just for fun, but odds are you'll need new pistons, overbore, etc, etc...

Reply #4June 16, 2013, 11:58:40 am

theman53

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Temp gun but no pics? Love to see some glowing red turbo, just not on my engine.

Reply #5June 16, 2013, 02:06:57 pm

ORCoaster

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    Restoring a Caddy as time and weather allows
The ULTIMATE "Hot" engine eh?   Not the way I would choose to preheat my fuel.  Good thing it's a diesel.

Reply #6June 16, 2013, 03:54:26 pm

8v-of-fury

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How hard were you pushing it persay?

Reply #7June 16, 2013, 04:26:13 pm

audilvr

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it was overfueling for sure. I was running at 4krpm for an extended period. prepping another engine for install. i'll pull the bad one apart later to see if anything is salvageable. I think the pump had the smoke valve played with and it's a gtd pump, so there should be more fuel to begin with. (I just installed it and ran it as is.)
1991 golf 1.6 td
1992 golf diesel coupe
1986 audi cgt....RIP
1994 audi 100q....RIP
99.5 auto tdi golf coupe
2002 golf tdi
2004 auto tdi jetta wagon

Reply #8June 23, 2013, 04:41:33 pm

audilvr

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I think the turbo is a t3. there is some oil near the intake( small amount ) and there is a bit of movement in the shaft. usable or not worth the chance?















0
1991 golf 1.6 td
1992 golf diesel coupe
1986 audi cgt....RIP
1994 audi 100q....RIP
99.5 auto tdi golf coupe
2002 golf tdi
2004 auto tdi jetta wagon

Reply #9June 23, 2013, 04:43:01 pm

8v-of-fury

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Always oil near the intake.. and shaft play is normal. So.. yeah I'd run it if she turns freely and isn't PUKING oil.

Reply #10June 23, 2013, 04:45:29 pm

theman53

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If the movement is up and down then it is OK unless it is hitting the compressor housing.

If it is in/out or lateral play I would say not usable. I would send it off to have it rebuilt. xsboostturbochargers.com is a great place. He will go through it for 75.00 and tell you what is wrong or for 325. completely rebuild it.

Reply #11June 23, 2013, 04:46:47 pm

audilvr

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good to hear. thanks.
1991 golf 1.6 td
1992 golf diesel coupe
1986 audi cgt....RIP
1994 audi 100q....RIP
99.5 auto tdi golf coupe
2002 golf tdi
2004 auto tdi jetta wagon