jlinde Posted November 8, 2007 Report Share Posted November 8, 2007 I have a 94 Northstar engine block which has 2 cylinders scratched from 2 spun connecting rod bearings which probably also caused an inch crack at the top of one cylinder - visible only in the steel. Before I found the crack I was thinking of reboring as there are oversize pistons to buy. Before I junk it I would like to know if it is possible to resleeve as the block looks good except for one head bolt thread that was stripped. This question has surely been up before I am afraid. /Jan L Link to comment Share on other sites More sharing options...
zonie77 Posted November 8, 2007 Report Share Posted November 8, 2007 I'm sure it can be resleeved as a custom procedure. I don't believe the factory supports any resleeving procedure. There are a few Caddy techs that can give you a definitive answer. You know about timeserts for the head bolt hole. Link to comment Share on other sites More sharing options...
BodybyFisher Posted November 8, 2007 Report Share Posted November 8, 2007 Jan, consider getting a new motor, I have shipped a full motor to Amsterdam, shipping is expensive but it can be done, if you consider this let me know, I will find an engine for you and we can talk about it Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
Ranger Posted November 8, 2007 Report Share Posted November 8, 2007 The cylinder liners are cast in place. Not sure it can be done. Link to comment Share on other sites More sharing options...
jlinde Posted November 8, 2007 Author Report Share Posted November 8, 2007 In fact I have an engine from 93 which I will use but this 94 is the original for the 94 STS and I was only curious if it is worth saving. I have some knowledge of the Ford and Cadillac flatheads and today good blocks are scarce. I have not talked to any machinist here but I know that they can do the job but I think that it is more about will it stay in place and how about the heat dissipation etc. Maybe there are still so many blocks around so this discussion is meaningless - just junk the block. /Jan L Link to comment Share on other sites More sharing options...
KHE Posted November 8, 2007 Report Share Posted November 8, 2007 In fact I have an engine from 93 which I will use but this 94 is the original for the 94 STS and I was only curious if it is worth saving. I have some knowledge of the Ford and Cadillac flatheads and today good blocks are scarce. I have not talked to any machinist here but I know that they can do the job but I think that it is more about will it stay in place and how about the heat dissipation etc. Maybe there are still so many blocks around so this discussion is meaningless - just junk the block. /Jan L If the cylinder liner is cracked, the block is junk. It is much easier and cheaper to find another engine. Kevin '93 Fleetwood Brougham '05 Deville '04 Deville 2013 Silverado Z71 Link to comment Share on other sites More sharing options...
med Posted November 10, 2007 Report Share Posted November 10, 2007 Jan, How do you think that damage happened to your motor? Do you have pictures of the block/damage? No valve train wear or damage? Pictures of the spun bearing/connecting rod/crank journal, etc? Check out this site to get a block through dealer: http://www.cadillacforums.com/forums/north...ctured-4-a.html P/N 89060159 through GM dealer. The above information was posted by AJ. Please post any pics of the damage if you have them or extra info on wear etc. Best of luck to you over there in Sweden. Link to comment Share on other sites More sharing options...
jlinde Posted November 11, 2007 Author Report Share Posted November 11, 2007 I have already thrown the very thin remainders of the spun bearing and the crank is rusting in the garden so the pictures won't show anything. The engine must have been run a long time after it begun to sound bad as the number one connecting rod bearing was gone and the piston had hit the head (no carbon left there). The number 1 and 2 rods were heated blue so it must have been loud but the driver did not care obviously. I could imagine that the crack at the top of the liner was because of this pounding. It had not stripped the threads of the head bolts surrounding it though. I have a good new engine except for valve guide replacement -I will use this forum to get some help on that. / Jan L. Link to comment Share on other sites More sharing options...
med Posted November 12, 2007 Report Share Posted November 12, 2007 thanks for the info. Good Luck. Link to comment Share on other sites More sharing options...
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