Stripped threads on block for bell housing...
Thread Starter
Staging Lane
Joined: Dec 2020
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The pan was factory installed. The only thing I've done with this crate engine so far is removed the factory clutch/flywheel and placed the new flywheel and bell housing on for bell housing alignment.
Interesting. I called Holly/QuickTime this morning to get torque specs for their bell housing fasteners. They told me 35 ft/lbs on both bell housing to block and bell housing to trans. They did not distinguish between block or pan on the block side. Is that not right?.
Thread Starter
Staging Lane
Joined: Dec 2020
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That’s interesting. They come factory installed with the wrong bearing? Luckily I bought an extra thinking one wasn’t installed. Is GM part #14061685 the correct one?
Timesert is strongest and just buy a kit as you will use it again some time in the future. That hole down there isn't super critical and that has happened to cars I've worked on before... someone simply overtightened it
Print out a couple copies of this torque spec sheet and put them in your tool box and give to your buddies that have LS projects: http://ls1howto.com/index.php?category=1
Print out a couple copies of this torque spec sheet and put them in your tool box and give to your buddies that have LS projects: http://ls1howto.com/index.php?category=1
Launching!
Joined: Jun 2016
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I am not familiar with a timesert. As a Tool & Diemaker for over 40 years, you need to look at the strength of the material that's being repaired, and how much material surrounds the area to be repaired. In this situation, aluminum isn't the strongest material. If it were me, I would go with whatever repair that disturbs/reduces the wall thickness the least amount. In my experience, a threaded insert usually means removing more stock from the I.D. (internal diameter) than a Helicoil would. Helicoils are a great way to repair stripped threads. As for this hole not being that important, IDK. Maybe it's not at this time, but may become more important at a later time. It looks to me like the time to repair it is now, while access to it is free and clear. Maybe that's just me. Anyway, I'd call a good hardware, Grainger, or Mid States Bolt, etc., and order the helicoil kit required to fix it. Just take the bolt in with you, and they'll match you up with the proper kit, which comes with the right size drill bit, a special tap, a 'tang driver', and a few helicoils. IDK how deep this hole is, so that's something you'll have to measure yourself, because helicoils come in different lengths. Good luck with this.......
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Verdad Gallardo I believe both Helicoil and Timesert use an 11mm tap for the M10 size. This is about the minimum you can increase the thread size if you consider the ‘worst case’ of pulling all the threads out of the hole. Unless you go with Time Sert’s Big Sert (which is used to repair thread repairs that failed), they both remove the same amount of material
Thread Starter
Staging Lane
Joined: Dec 2020
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Launching!
Joined: Jun 2016
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The pilot bearing currently installed is for a TR6060. It won’t work for a T56, as the pilot shaft of the T56 is too long. You must remove it and install the needle bearing in the crank. The new bearing fits in a bore that is under the bearing currently installed in the crank. Remember that, when installing this bearing, the rubber oil seal must face out toward the clutch.
Last edited by StorminMatt; Feb 20, 2021 at 03:41 PM.
Thread Starter
Staging Lane
Joined: Dec 2020
Posts: 60
Likes: 6
The pilot bearing currently installed is for a TR6060. It won’t work for a T56, as the pilot shaft of the T56 is too long. You must remove it and install the needle bearing in the crank. The new bearing fits in a bore that is under the bearing currently installed in the crank. Remember that, when installing this bearing, the rubber oil seal must face out toward the clutch.
Launching!
Joined: Jun 2016
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You need to get a pilot bearing puller of some sort. Just don’t use bread, grease, or TP and pound in the hole of the bearing, as there is an oil galley plug inside that bore. Doing so could push in the galley plug, causing you a heap of trouble.
Thread Starter
Staging Lane
Joined: Dec 2020
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I saw those videos. I'm not doing that. I'll go grab a pilot bearing puller. Thanks again.
Thread Starter
Staging Lane
Joined: Dec 2020
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Tap it in until it’s flush. Done.
Launching!
Joined: Jun 2016
Posts: 288
Likes: 57