Well I'm finishing up under my transmission and there was a hanger there that the battery cables bolt up to.
That's the same spot where they had a PTO hooked up on there and it supports the pump. I removed the PTO for now.
I tightened it up with a 3/8 ratchet and the bolt stripped. I think those guys that put the PTO on must have used an airgun or maybe they had another Helicoil in it before because when the bolt came out there was just a little tiny piece of thread on it. There's no way I stripped that with a 3/8 ratchet.
At any rate I have to repair that or it's going to leak.
Is there any issue using a helicoil for a transmission case Bolt?
Helicoil for transmission bolt
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Dino soar, Oct 21, 2019.
Page 1 of 2
-
-
Trucking Jobs in 30 seconds
Every month 400 people find a job with the help of TruckersReport.
-
Any threads left ? Try a longer bolt
Working2party Thanks this. -
Helicoil should work just fine.
My only other thought is to go up a bolt size to 1/2" and tap it over size. Drill open the one hole in the cover. I hate making things different for future issues, but it would work plus you dont have to buy a helicoil kit if you dont have one.Hulld, pushbroom, Collie and 1 other person Thank this. -
I agree helicoil.
Each helicoil usually requires an odd drill bit. It tells you on the package which drilll bit to use. I get the bits off Amazon. The helicoil works as good if not better than original hole
I keep helicoil kits for most common bolts on the truck and have had to use them once on trans. -
Dino soar Thanks this.
-
I second the use of a helicoil.
The threads will better than new and all the bolts will remain stock.
We use helicoils weekly and sometimes almost daily in our transmission shop.
Of the literally hundreds and hundreds used over the last thirty years we have had zero issues.Rideandrepair, Dino soar and Collie Thank this. -
If you've got threads left maybe you can bottom a stud in the hole.
Dino soar Thanks this. -
-
Collie, Rideandrepair, Dino soar and 1 other person Thank this.
-
Now that I'm thinking about it, that mount that holds the battery cables has a built-in spacer. I'll have to check tomorrow to see if any threads are left.
If I have to do anything to it, as long as a larger bolt won't interfere with that mount, I would probably tap it One size larger.
I probably have the right drill and tap and then it would just be the cost of one bolt and a washer.
I gotta do something. The mighty big cam is ready to Roar!Last edited: Oct 21, 2019
Collie and Rideandrepair Thank this.
Trucking Jobs in 30 seconds
Every month 400 people find a job with the help of TruckersReport.
Page 1 of 2