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Old 11-12-2006, 10:17 PM   #1
johnkarl
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Default connecting rod shells

I have just removed the shells from the crankshaft to pistons [big end shells] ,to find that no 6 shell seems to have been turning inside the connecting rod and end cap , is this a common problem, or am i just lucky , or unlucky as the case maybe .Secondly the number on five of the shells is 0A57C .The number 6 shell numbers have been worn off but i surmise that this will be the same as the rest, is this a standard bearing size if so i shall order some new ones
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Old 11-13-2006, 08:35 PM   #2
Bill UK
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The first thing you need to do is have the crank crack tested, unfortunately if a bearing has spun that would indicate excessive load on the crank and con rod. I assume you stripped it down due to a knocking noise at about 2k-3k revs or did the engine seize? If there is bearing metal swaged into the crank journal then you will need all the journals reground to the same size. + .020 thou or + .040 thou. But first have the crank tested and let us know how you got on, check this link out.http://www.toyota-supra.info/forums/showthread.php?p=32730#post32730
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Old 11-13-2006, 08:46 PM   #3
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By the way I have con rods with end caps from my old engine,1990 7M-GTE, just need bearings if that helps. F.O.C
If you are not sure where to get it tested and reground try this guy his name is Steve WWW.SILVERLINERACING.COM I found him very helpful. You can call him on 07989302629 7pm till midnight

Last edited by Bill UK; 11-13-2006 at 10:10 PM. Reason: Added Steve`s Link
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Old 11-14-2006, 06:46 AM   #4
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Default big end shells

hello and thanks for your reply, but the reason that i stripped the engine down is the cylinder head gasket had gone and i decided to remove the engine, as to replace the shells just as a precaution , as i have had 7 toyota supras before ,both n/a and turbos, and every one of these cars have had big end problems , i know what you are thinking if so much trouble why dose he still buy them , well i just love the shape , and the dash is great to ,my wife just shook her head when i told her about this one , but there was no noise on the bottom end and the strip down was purely precautionary , just as well though ,take note all you supra owners out there , this car had been serviced by a garage and this still happened seven out of seven mileage is 111072, not a great deal of miles for a 3.0 car but that is how it is .Bill thanks a lot for the phone number and the offer of the con rod and end caps ,how much do you want for one of each , ps the bearings have just started to turn and in no way resemble the ones the poor mans in the picture looked like , but all the shells were down to the copper underneath the white metal coating , got to go to work now will add more when i get in once again thanks to all your replies----Karl
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Old 11-14-2006, 05:42 PM   #5
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Hi Karl,
Thee Surpa`s over a period of twenty years, thee BHG`s repaired, one engine stripped down for big-end repair and still at it. The first one I a bought from new in 1986 250 k on the clock before it was written off by a hit and run, but was still running on the original bearings.
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