LT1 crank hub installed depth

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Apr 19, 2020 | 08:33 AM

jmgtp

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LT1 crank hub installed depth

Installing the hub I find myself questioning if it is seated all the way. There seems to be a 1/2” gap between the flange on the hub and the timing cover. I installed by threading a hardened threaded rod into the crank until it bottomed, then pressed the hub on with some washers and a nut. It went on without a fuss and I stopped when it felt like it bottomed. I was pretty certain it bottomed. Does it look too far out of the timing cover to you?

What you are seeing in the pic below: shiny part is a repair sleeve for grooves in the hub set to the max depth the install tool would allow, the line of red is just a little anaerobic sealer that is under the sleeve.

Apr 19, 2020 | 01:13 PM

C4 1994 Dubai

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Quote:

Originally Posted by jmgtp

Watching this as im about to do the same to mine, its not out although motor still in the car, ill try measure it if i can tomorrow.

Apr 20, 2020 | 11:14 AM

RichS

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From: WilkesBarre PA

Looks close but I would put the balancer on and the alternator and ck with a straight edge if it's lined up. Also make sure the hub bolt is torqued properly.

Apr 21, 2020 | 07:06 AM

jmgtp

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Thanks RichS, I’ll do that. I don’t have the accessory bracket back on just yet to mount up the alternator but should soon.

Apr 21, 2020 | 10:55 AM

wwracer

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From: island park ID

Pretty fool proof, if the hub bottomed out, and you have proper torque (74 FT/lb) then your there.

Apr 21, 2020 | 08:14 PM

9T3VETTE

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From: Motor City

Here is pic of my hub as it was from the factory.

Apr 21, 2020 | 11:04 PM

mtwoolford

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From: folsom california

For 96. OBII only, is the reluctor wheel installed properly? didn't move / fall off the little notched key way?

Apr 22, 2020 | 07:07 AM

jmgtp

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94 here, no reluctor wheel.

9t3vette, thank you for the pic, much appreciated. Eyeballing, looks about the same as my motor. This weekend I should get the accessory bracket on and be able to line up the alt to the crank pulley to validate its correct.