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TDI Power Enhancements Discussions about increasing the power of your TDI engine. i.e. chips, injectors, powerboxes, clutches, etc. Handling, suspensions, wheels, type discussion should be put into the "Upgrades (non TDI Engine related)" forum. Non TDI vehicle related postings will be moved or removed. Please note the Performance Disclaimer.

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Old July 25th, 2012, 12:40   #46
dieselfuel
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Yes. But it didn't help in my case either.

Dave's problem was not the studs not holding. He had a timing belt failure.

The studs did there job and still would be, if the tb failure didn't ruin his cylinder head.

I'd much rather try the stud than do the head gasket. If the studs don't work, then you have a major problem. Meaning the head would have to be shaved and trued, and the difference made up with the proper thicker gasket.

df
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Old July 25th, 2012, 15:45   #47
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I don't think you understand, I was also trying the head studs to alleviate a head gasket leak. For some people it worked, but it did not for me and I had to change the head gasket.
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Old July 25th, 2012, 16:02   #48
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^^^ Fair enough.

To me, your post read like Dave's studs failed, that's all.

I believe your case is the only one I've heard of that didn't fix the coolant seeping issue. At least someone who doesn't "track" their TDI.

I do remember ToTheMax tried the studs and it worked. He runs his on Track Days. I don't remember if he had an issue with the studs after he installed them.

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Old July 25th, 2012, 16:07   #49
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Well I've pretty much decided to try it. I should have the parts by mid next week. Abacus- When you subsequently pulled yours apart, was there a breech in the gasket or was the head just not flat anymore?
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Old July 25th, 2012, 17:35   #50
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And another thing.....
After reaching operating temp,the cooling system will stay pressured up for hours- even overnight like 15 hours or so. Seems like a leak like that would have to be pretty small for it not to leak down overnight. The pressure depresses the coolant level so that when the cap is cracked open allowing the pressure to release, the level rises to the line again. Sound familiar?
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Old July 25th, 2012, 17:36   #51
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Neither. I couldn't find the leak and the head was fine. It wasn't losing a ton of coolant but it would dump some when I pushed it hard.
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Old July 25th, 2012, 17:54   #52
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Head lifting? But your new gasket solved it...
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Old July 25th, 2012, 17:57   #53
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Possibly, I honestly don't know. But if the ARP studs didn't cure it, I doubt the head was lifting. I think the leak was just small enough to be a nuisance.
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Old January 30th, 2014, 23:47   #54
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Digging up bones here.....

I had a lifter let go in my 2002 ALH Jetta in Aug 13. I had to have the head sent off to Frank Irving for service. I replaced the HG, Upgraded the cam, got new head bolts and went ahead and put a new timing belt on. Everything worked great until this month. I notice my coolant light comes on now and then. I got to refill it to max and all is good. Now lately the car has a hard crank sometimes. Just got a new Batt (Last week) so i know its not that. Today the car would crank to a point and just stop. Im guess its got coolant on the piston and its hydrolocking. Its sat for a few days.

Im going to pull the injectors tomorrow and clear the cyls and see if it cranks and discharges any water/coolant. If it does im going to order a set of ARP's and see if that helps my issue. I know my head was level when i got it back. I know Frank does good work. Might as well try before i pull the head again. It wasnt that bad of a job but i dont want to do it if i dont have to. Ill post up results when i get em.

Thanks all for all the feed back on this thread.
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Old February 21st, 2014, 18:52   #55
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Well my studs didnt stop the leak and now (After sitting for a few days) tried to crank only to bust 2 to 3 teeth off my flywheel after the pistons locked up:



It was only under starter power but now the tranny has to come out to replace the starter ring gear.....and prob go ahead and do a compression test. I tired to roll the engine by hand and its locked....don't know why....maybe a tooth got pinned. Either way i need more time and access to the crank/balancer.

SO now i get to pull the head an now the trans....and maybe looking at an engine rebuild. Getting my money's worth on this project......
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Old February 22nd, 2014, 07:29   #56
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pull the glow plugs and see if you can turn it.
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Old February 22nd, 2014, 08:00   #57
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pull the glow plugs and see if you can turn it.

Already out. Can't get it to move. Going to spend some more time on monday looking at it. I was too frustrated to think last night.
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Old March 3rd, 2014, 20:17   #58
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I just started the APR stud install on my 1999 Beetle. Had a very faint smell of coolant on my first big road trip in the car. Hoping this will solve my little leak. Makes me laugh that I have to do this to a tiny 1.9L diesel and many guys with Cummins 5.9 can handle huge programmer power, water meth injecton and big exhaust no leaks no issues...

Thanks for this thread.

God bless...
Mark
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Old March 3rd, 2014, 20:28   #59
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Makes me laugh that I have to do this to a tiny 1.9L diesel and many guys with Cummins 5.9 can handle huge programmer power, water meth injecton and big exhaust no leaks no issues...

Thanks for this thread.

God bless...
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Two major differences being that not only does the cummins use and iron cyl head but it also has 6 head bolts per cyl.
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Old March 4th, 2014, 06:24   #60
Nash_TDI
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Quote:
Originally Posted by m_mcgranahan View Post
I just started the APR stud install on my 1999 Beetle. Had a very faint smell of coolant on my first big road trip in the car. Hoping this will solve my little leak. Makes me laugh that I have to do this to a tiny 1.9L diesel and many guys with Cummins 5.9 can handle huge programmer power, water meth injecton and big exhaust no leaks no issues...

Thanks for this thread.

God bless...
Mark
Smell of coolant in the car? That could be the heater core going. When my HG went it was pressurizing all the coolant system and blew my heater core too. Thats a fun job.
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