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vascott01 vascott01 is offline
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Join Date: Sep 2005
Location: Clifton, VA
Posts: 153
83 euro 930 engine rebuild

"First off many future thanks for any and all advice"


Intro
I have owned this car for the last 10 years, has 65k on the odometer, 41K when purchased. I have tracked it 10+x I think and it has ran like a champ. No major upgrades, pretty much stock 1979 chassis with a 83Euro 930 Engine. No problems other than basic oil changes. Until....


The reason: Coming home from a track event and the car started to run really rough (I should have pulled over) but I continued home since I had only 45 miles left. I had already had a bad weekend at the track as I went off and busted up the front corner panel, lower valence and fender..

Essentially my distributor had moved. The screw that held it in place came loose...Was not a fun ride home. I did not know the issue until The following day after I relaxed and looked under the hood. Poof set the timing and I was back in business. Continued to drive for several months on weekends running short errands and it just never felt right after.

Decided to do a compression test and sure enough cylinder 3 & 6 were losing 55%. Performed a leak down and test came back the same...

Decided...Time for an engine drop and let the madness begin.

I will not bore you with the tear down as anyone can take something apart. The question is can you put it all back together. Hopefully with my notes, pictures, books and my short term memory (Hence the reason for you all) I will be able to put Humpty Dumpty back together again.



What I have done so far:
1. Complete breakdown
2. Crank/flywheel/rods cleaned and rebalanced
3. Heads cleaned and new everything
4. New engine wiring harness
5. Purchased all stuff to get case back together minus stuff I can get at the local stores.
6. Case is coming back tomorrow. I wanted it cleaned and oil squirters tested and replaced if needed.



1st stage - Crank and Rod assembly

I start this weekend...Let the fun begin..


List of items on hand:
1. Plastigauge
2. Loctite 271
3. new rod bearings
4. New OEM rod bolts and nuts
5. brand new Torque wrench 3/8
6. Assembly lube
7. cleaned and balanced crank/rods

Things to do prior to starting
Clean all parts again, Measure everything


Question to the audience before I embark.

Torque setting for OEM rod bolts
I think I have heard 1st stage is 11lbs (15nm) and (now I have seen 37-41lbs and 50-55nm listed somewhere else) HELP!!!!!!
second stage I assume is to continue another 90 degrees after.. Correct??

I was reviewing Waynes 911 rebuild book and he says 14.7lbs (20nm) I know it says 911 on the cover but think much of the same information would be true. Correct?

Thanks all and I will post pics as I go along. I await for the proper torque setting.

Cheers for reading and will need your keen eye for additional input
__________________
Scott

1979 930 - Black on Black and in the woods

"My third child that will cost more in the long run" :shock:

Last edited by vascott01; 11-06-2014 at 04:16 PM..
Old 11-06-2014, 02:43 PM
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