Hey guys just wanted to get some insight on what a possible solution can be. I had my tdi run away a month ago which bent a rod. I since bought a new engine and put that in. The guy I bought the engine from mentioned he repaired a glow plug hole by putting a thread insert in it. What he didn't tell me is he ended up drilling through the glow plug seat and now compression leaks out very easily. I have the engine running and it is timed perfectly, also timed the injection pump with VCDS. The car runs horrible since its only running on 3 cylinders. What is a good way to seal the threads on the insert and the glow plug in order to stop compression leaking out and making the car run terrible? I was thinking maybe some Permatex thread sealant on the insert and the glow plug but not sure if it would seal up straight threads well enough, the other option is to put a bolt in, instead of the insert and use a copper washer but nobody makes m12 x 1.0 bolts which is the insert thread size. Any help would be appreciated very frustrating to find out that the old owner wrecked the glow plug seat.
Need Help with Leaking Glow Plug
- Thread starter Jake.W
- Start date
Steve Addy
Top Post Dawg
Ditto....and even then maybe not worth the effort to fix?
I would think ALH cylinder heads are a dime a dozen?
Steve
I would think ALH cylinder heads are a dime a dozen?
Steve
BobnOH
not-a-mechanic
Hopefully Frank can hook you up with a solution not requiring head remove. In the meantime, I'd try a fastener and a washer, if available an interference bolt, like they use on aircraft, might seal it. You can certainly get by with 3 glow plugs.
Franko6
Vendor , w/Business number
Jake, yeah, the previous owner dumped his junk on you. I suppose I could go through a clever exercise to cure that issue, by tapping an aluminum chunk into the head and properly re-driling it for a seat, but that would be far from elegant. Let me make a wild guess... Is it #3 gp?
Instead, I'm going to offer the single best solution. Drill and tap the hole for a 10mm bolt. No need for a recoil. It's never going to move again. Match the angle of the drill bit end and either machine or grind that angle onto the bolt. Cram the bolt into the hole with Loctite and forget about it. You don't need a washer. As long as it doesn't leak, that's all you can do.
You will get a permanent CEL, but the engine should work well enough. To stop a gp CEL, If you are able to find a reasonably priced 100 ohm resistor, put that between the gp harness and wherever you can mount it to ground. You will experience lumpy starts anytime your temps fall below 45 degrees. In other words, all the days except your 6 weeks of summer... But your engine should then operate normally.
I know a purchase on a vehicle or it's parts is 'buyer beware', but that dude who sold you this is a bald-faced liar and should be ashamed of himself. If he's a TDI'er, he should be marked as 'Untrustworthy'. I could only wish...
Instead, I'm going to offer the single best solution. Drill and tap the hole for a 10mm bolt. No need for a recoil. It's never going to move again. Match the angle of the drill bit end and either machine or grind that angle onto the bolt. Cram the bolt into the hole with Loctite and forget about it. You don't need a washer. As long as it doesn't leak, that's all you can do.
You will get a permanent CEL, but the engine should work well enough. To stop a gp CEL, If you are able to find a reasonably priced 100 ohm resistor, put that between the gp harness and wherever you can mount it to ground. You will experience lumpy starts anytime your temps fall below 45 degrees. In other words, all the days except your 6 weeks of summer... But your engine should then operate normally.
I know a purchase on a vehicle or it's parts is 'buyer beware', but that dude who sold you this is a bald-faced liar and should be ashamed of himself. If he's a TDI'er, he should be marked as 'Untrustworthy'. I could only wish...
csstevej
Top Post Dawg
- Joined
- Aug 12, 2004
- Location
- north nj
- TDI
- 2001 golf tdi 4 door auto now a manual, mine, 2000 golf 2 door M/T son's,daughters 98 NB non-TDI 2.0, 2003 TDI NB for next daughter, head repaired and on road,gluten for punishment got another tdi 2001NB,another yellow tdi NB
Yeah as Frank said it will run fine on 3 GP’s….ran that way on my 01 golf for 12 years when I snapped #3 GP off.
When the head gasket went at 392,xxx miles , I replaced the head with a good used one.
In my case since I had a two wire GP system I just attached both legs together so it wouldn’t show a current imbalance and keep the CEL off.
When the head gasket went at 392,xxx miles , I replaced the head with a good used one.
In my case since I had a two wire GP system I just attached both legs together so it wouldn’t show a current imbalance and keep the CEL off.
P2B
Top Post Dawg
I have all 4 legs shorted together on my '03, otherwise it throws a CEL every time the engine is started warm (but never when cold or at full operating temperature).
I check the plugs each fall when the winter tires go on.
I check the plugs each fall when the winter tires go on.
I figured out why it was misfiring it was actually a bent intake valve, and the seat was damaged on the head. I just put the other head on it. lapped the valves to refresh it a bit and that fixed my issue which also fixed my glow plug issue. The guy I bought the engine from told me he was a former lead tech too. What a shame
Steve Addy
Top Post Dawg
Perhaps the reason for 'former' lead tech?
I'm the former president of Nicaragua. I changed my name to avoid prosecution. Prove me wrong.