[DeTomaso] starter studs

[Ken Green]

Jeff,
 
    I looked at the studs McMaster Carr sells, and the description of the 42mm studs I found says they are "self locking" on the tap end.  They are PN 91059A556, 42 mm with 12 mm tap end and 26 mm nut end.  It appears that the tap end has an interference thread so it stays in in place when you loosen the nut.  Maybe your threads are like these so they bind at some point?
 
Ken
 

--- On Mon, 4/4/11, Jeff Udelson <jefude at yahoo.com> wrote:


From: Jeff Udelson <jefude at yahoo.com>
Subject: Re: [DeTomaso] starter studs
To: MikeLDrew at aol.com, detomaso at realbig.com
Date: Monday, April 4, 2011, 8:33 AM


The replacement studs bind after about 1/2 turn. The original stud screws back in by hand. 
 
I am just paranoid about running a tap into the aluminum and possibly making matters worse.
 
Jeff

--- On Mon, 4/4/11, MikeLDrew at aol.com <MikeLDrew at aol.com> wrote:


From: MikeLDrew at aol.com <MikeLDrew at aol.com>
Subject: Re: [DeTomaso] starter studs
To: jefude at yahoo.com, detomaso at realbig.com
Date: Monday, April 4, 2011, 3:21 PM



In a message dated 4/4/11 7 18 15, jefude at yahoo.com writes:



 If the opinion is not to use bolts. And I can not find correct studs. How about just using a bolt with the head cut off ?


That would work after a fashion.  I still don't understand the specific problem you had with your studs.

I should mention that when I bought new metric studs for Lori's Pantera, they didn't thread happily into the bellhousing where the old metric studs had lived for years.  Visual inspection and a test-fit with a metric nut revealed they were both the same, yet the new stud seemed to be a slightly-less-happy fit.  We used a metric tap to clean out the holes and then the new studs worked fine.  So I think that may be the solution you need.

Then again, if you've already run new metric bolts in there, the bolts may have introduced happiness to the holes and now the studs might go just fine?

On my car, I had metric bolts holding my starter in and when I changed the starter (actually just changed the solenoid but I had to remove the starter to do so), I changed to studs at the same time.  I can't remember if I helped them along by running a tap through the holes first or not?

Can't hurt though!

Mike 


      
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