Buying 1984 Jetta converted to turbo / blown head gasket - page 1 - Troubleshooting - VWDiesel.net The IDI, TDI, and mTDI source.
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Buying 1984 Jetta converted to turbo / blown head gasket by vwsnaps on 08 Aug, 2012 15:21
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GUys wants to trade me his 1984 Jetta diesel that he " added " a turbo to and blew head gasket - for my broken mk3 jetta glx vr6
My question - he just bolted turbo to the engine - drove it for awhile and when getting 24lbs of boost blew head gasket...
i am debating about just repairing the head gasket , removing the turbo back to NA - as its my understanding that you have to do internal modifications to " add " a turbo to a non turbo motor
Any suggestions? Or like a gas car - can i just buy a " thicker " head gasket to lower compression? i dont think that will work on a diesel?
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#1 by R.O.R-2.0 on 08 Aug, 2012 15:43
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if he blew the head gasket at only 24psi, then it was ready to go..
ive been boosting up to 35psi on a stock n/a diesel for a LONG time now..
there are no required changes to the engine to boost it. yes, you can bolt a turbo on a n/a engine, and be boosted..
my engine is a CS code 12mm 1.6D, out of a VANAGON.. they NEVER came with a turbo on this side of the pond..
there is nothing wrong with boosting a n/a engine, provided you do it correctly.. -
#2 by R.O.R-2.0 on 08 Aug, 2012 15:43
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better yet, what turbo does it have? if it has a K03, than 24psi probably WILL blow a head gasket..
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#3 by vwsnaps on 08 Aug, 2012 15:48
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better yet, what turbo does it have? if it has a K03, than 24psi probably WILL blow a head gasket..
k04 from an eclipse...
So i can just buy the proper head gasket , head bolts and other necessary gaskets and go for it..
sweet - i gotta buy tools too... dont own any injection tools -
#4 by bbob203 on 08 Aug, 2012 16:00
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get head studs and do it right.
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#5 by R.O.R-2.0 on 08 Aug, 2012 16:07
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better yet, what turbo does it have? if it has a K03, than 24psi probably WILL blow a head gasket..
k04 from an eclipse...
So i can just buy the proper head gasket , head bolts and other necessary gaskets and go for it..
sweet - i gotta buy tools too... dont own any injection tools
you need a 12mm XZN (provided it still has the correct engine installed) for the head bolts..
and a 27mm deep socket.. very deep. mine is actually cut in half, with a chunk of pipe welded between the 2 halves..
the injection lines are 17mm, and you DONT need line wrenches, but it never hurts.
its VERY straight forward to replace the head gasket on a VW diesel, but be sure to measure the piston protrusion to be sure you order the correct thickness of head gasket.. even tho its boosted, there is NO REASON to run a thicker head gasket than what the piston protrusion calls for. lowering the compression in an IDI is not a good idea.. it just makes it harder to start, and less efficient while operating.
when you put the engine back together, i would limit boost to 15psi or so, or else intercool it, and run a free flowing intake and exhaust system..
if you leave the boost that high, with that turbo (quite restrictive i imagine) it will more than likely just keep blowing head gaskets.. excessive back pressure blows the head gaskets on VW diesels.. not too much boost.
if you have a good flowing intake and exhaust, you can run LOTS of boost fairly safely..
its when you have crappy flowing manifolds, and restrictive turbos that the head gaskets start going out..
btw, if you dont go wild with boost and drive pressure, there is no need to spend $100+ on head studs..
ive been running a big VNT on my engine, and boosting up past 30psi for a LONG TIME, and i have RE USED head bolts, and a RE USED gasket.. -
#6 by wolf_walker on 09 Aug, 2012 09:25
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Screw the head, if that's as clean and un-rusty a looking A1 sedan as it appears, jump on it!
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#7 by R.O.R-2.0 on 09 Aug, 2012 11:51
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looks to have mk2 bumpers grafted onto it tho..
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#8 by 8v-of-fury on 09 Aug, 2012 12:10
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looks to have mk2 bumpers grafted onto it tho..
How high are you?
Those are stock north american Jetta bumpers. They're tucked, but fully stock 
.
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#9 by R.O.R-2.0 on 09 Aug, 2012 13:00
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looks to have mk2 bumpers grafted onto it tho..
How high are you? Those are stock north american Jetta bumpers. They're tucked, but fully stock .
they are IDENTICAL to the bumpers on my mk2 GTI..
they dont look OEM to me.. -
#10 by CRSMP5 on 09 Aug, 2012 13:09
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tucked oem... duel chrome srrips.. mk2 only had 1...
sadly this guy will get it.. do some work on it.. then sell it like all his other mk1... -
#11 by R.O.R-2.0 on 09 Aug, 2012 13:12
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where are you seeing a SECOND chrome strip?
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#12 by 8v-of-fury on 09 Aug, 2012 18:24
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where are you seeing a SECOND chrome strip?
Realllly hiiigghh, one right above the other. Trust me dude, stock mk1 equipment. I have three in my driveway
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#13 by CRSMP5 on 09 Aug, 2012 19:53
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i have 2 in mine... but got bunny ones on them... euro set im rafters... hate stock ones...
follow bumper from driver tire, around corner to front... its got 2 not a big wide one, not the black stripe in middle... ive seen them in 1 and 2 strip versons... looks to be a double to me... -
#14 by R.O.R-2.0 on 10 Aug, 2012 10:20
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OEM or not, they look out of place on that car..
i BELIEVE you guys that they are stock..
i just dont like the way they look at all...