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Injector thread broken off on cylinder head (engine). What now?

Posted: 10 Apr 2026, 09:43
by meeh85
Hi.
Greetings from Norway. I will try to explain in english..... :) And thanks a lot for reading this !!!

I have a 1989 VW T3. It’s supposed to have a 1.9 turbo diesel engine from a Golf (but I’ve never managed to find the engine code). When I bought the car, I had no idea about cars. But I’ve managed quite well with help from YouTube and similar sources.
 This time, however, things went really bad. I haven’t been able to get help through Norwegian forums and groups. I’ve been turned down everywhere by companies I’ve contacted here in Norway.
 The problem:
Diesel started seeping up from underneath one of the injectors. I bought a new injector, removed the old one, and tried to screw in the new one — but two  parts from the engine itself broke off, . Possibly because I used too much force.
 The threaded mount for the injector in the cylinder head is therefore partly gone—enough that I can’t attach it properly at all. Some people mention a Time-Sert thread insert as a possible fix, but I can’t find anything that seems to fit.
 This is far beyond my modest skill level. I honestly have no idea what to do. :/
 Any suggestions? Even a temporary fix would be fine, just so I can drive the car somewhere. If a more complex operation is needed later for a permanent solution, that’s okay too.

Thanks a lot for the help !!! 

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Re: Injector thread broken off on cylinder head (engine). What now?

Posted: 10 Apr 2026, 10:55
by cobblers
There are only three or four threads left. This might be enough to gently thread a new injector into as a short term fix (to get you home, but no more) but it's not enough to properly hold the injector with full torque.

Realistically, you need to replace the cylinder head.

Re: Injector thread broken off on cylinder head (engine). What now?

Posted: 10 Apr 2026, 12:04
by davidoft1
New head is the best and possibly only realistic solution

Re: Injector thread broken off on cylinder head (engine). What now?

Posted: 10 Apr 2026, 13:05
by R0B
For those who cant see the images.

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Re: Injector thread broken off on cylinder head (engine). What now?

Posted: 10 Apr 2026, 18:29
by Aidan
davidoft1 wrote: Yesterday, 12:04 New head is the best and possibly only realistic solution

WHS /\ /\ /\ /\ /\ /\