broken bolt

Has anyone ever had a bolt in the jomar stud girdle break, my car got a vibration in it, and backfired a little, I shut it down, took it to the pit, and pulled the valve covers off, all I found was a broken bolt in the girdle, has this ever happened, and would it cause the trouble I mentioned?


Bruno move this up, I messed up, should be in engine tech.

improper torque? what else is broke?

broke bolt should'nt cause a miss,IMO.but a miss could cause a broke bolt!

Harold,that reminds me did'nt something like some sorta miss happen last season and you never really knew what ever caused it.

bbf-falcon wrote:Harold,that reminds me did'nt something like some sorta miss happen last season and you never really knew what ever caused it.

Hell I don't remember, but I can't figure the problem, unless the washer got in the valve spring or something.

hell put another bolt in it and run it! it'll show up later if it's a problem.

I had one break on a Probe girdle. But ,it broke when I was tightening it. I think everybody wants to get a little torque happy on the poor little 5/16 bolt.Good thing you caught it before broke some stuff,better take a close look at your valve springs?

they only go like 22-24 ftlbs.

cool40 wrote:hell put another bolt in it and run it! it'll show up later if it's a problem.

I ordered 16 new grade 8 bolts, and 16 new washers, the old ones are grade 5, so overkill can't hurt, I checked all the rockers, push rods, and springs, so I going to put her back together, I think the bolt might have been broke for a while, the distributor was the culprit, I sent it back to msd for a complete rebuild.

my old Jomar had the gold grade 8 bolts, I noticed the new girdle for the P51's had the chrome bolts.....I didnt look at the grade............dont matter I'm under the valve covers after every race anyway............

342g wrote:

cool40 wrote:hell put another bolt in it and run it! it'll show up later if it's a problem.

I ordered 16 new grade 8 bolts, and 16 new washers, the old ones are grade 5, so overkill can't hurt, I checked all the rockers, push rods, and springs, so I going to put her back together, I think the bolt might have been broke for a while, the distributor was the culprit, I sent it back to msd for a complete rebuild.

last msd distributor i ran was a "new" POS. i made a new bushing for it and put a few holes in it for a little extra oil and it was ok.it did'nt have 500 miles on it when it took a dump.

Hope the new bolts and Dizzy gets ya fixed up Harold

bbf-falcon wrote:Hope the new bolts and Dizzy gets ya fixed up Harold

The new bolts are just for peace of mind.

342g wrote:

bbf-falcon wrote:Hope the new bolts and Dizzy gets ya fixed up Harold

The new bolts are just for peace of mind.

Like a high quality condom?

Curt wrote:

342g wrote:

bbf-falcon wrote:Hope the new bolts and Dizzy gets ya fixed up Harold

The new bolts are just for peace of mind.

Like a high quality condom?

Exactly, , trojans all the way.