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UH OH! Pinion flange nut?

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Morris_Dayton

Freshman Member
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Hello, I'm new to this site. I'm in the process of restoring my wifes late grandfather's 77'MGB. I've ran into a little problem. I'm afraid if I proceed I may do some damage.

I marked the nut and shaft. I removed it very carefully and counted the turns,11 1/4. I then went throught the declunking and wheel bearing process. I went to reinstall the flange nut and at 11 1/4 turns it was not tight. I'm using a regular 1/2'' ratchet and it was turning very easily. I backed it all the way off and started again, still the same thing. When I pulled on the flange, with the angle iron attached that I used to hold the flange, I could feel a slight bit of play. I thought maybe I had miss counted a turn on removal so I continued on to 12 1/4 turn. The play seems to be gone but the nut is not what I'd call tight at all. Maybe 15 lbs torc.
What should I do? Oh yeah, this is a 77'.
I removed the nut to replace the seal by the way. Maybe I should have retightened It before preceding on to the other rear axle issues. I don't think that would effect it though.
Thanks
 
Torque it to spec and don't worry about it. You may have miscounted so your safest bet is to use factory spec. They usually don't end up in EXACTLY the same place anyway. You just want to make sure you don't "over crush" the crush spacer.
 
Factory spec on the pinion nut is 140 lbs/ft.

I suggest getting a copy of the factory manual. Haynes doesn't really cover everything.
 
Steve is right, get a copy of the Bentley manual. It is expensive, but I have found that it was a worthwhile investment. I use my Haynes manual all the time, but the Bentley does seem to have things the other doesn't cover.

There are two manuals, depending on the year car you have. Here is a link for the later model cars

https://www.amazon.com/1975-1980-Bentley-...6247&sr=8-5
 
People complain about $50 for a book all the time. I look it as $50 to have all the information the factory has to offer about servicing your car. That's incredibly cheap, yet invaluable, in my opinion.
 
iagree.gif
$50.00 is a very fair price for the Bentley manual! I paid over $100.00 for the manuals for my, then new, 93 Chevy pick up in 1993 and their only for that model and that year. But, they were worth every penny!
 
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