Bellhousing bolts

[jerryh]

Hi

Can anyone tell me what thread size the bottom belllhousing cover plate should be fixed with, I've tried various unc and unf but can't find anything that fits.
Any help would be most appreciated.

Cheers
Jerry

[types26/36]

Hi

Can anyone tell me what thread size the bottom belllhousing cover plate should be fixed with, I've tried various unc and unf but can't find anything that fits.
Any help would be most appreciated.

Cheers
Jerry

As I recall it is 1/4 UNC.

[512BB]

Thats correct Brian, and I suppose, if you have already tried those Jerry, a DPO has messed with your bellhousing, and you are going to have to carry out some remedial work.

And good luck with that into cast iron.

Leslie

[MickG]

1/4 UNC on mine.
Mick G

[jerryh]

Thanks for all the replies, I have tried 1/4unc so as Leslie says a bit of remedial work required, I will run a tap through first and may get lucky.
Thanks again

Jerry

[CBUEB1771]

Should be an easy fix with a helicoil.

[oldelanman]

Or....if the threads are stripped in the bellhousing you could simply use nuts and bolts instead.

[el-saturn]

that's what i had to do to my alloy bellhouse! ------------nobody knows and nobody can see!

[512BB]

I don't think I would go the nut and bolt route if it were my application.

You do not say Jerry if the engine and gearbox are in situ, but if they are NOT, I would do a proper job, and get a decent welder to fill up the holes and start again. If they are in situ, then your options are somewhat limited due to access.

Good luck with it.

Leslie

[oldelanman]

Deleted.

[types26/36]

I would do a proper job

Well that's me put in my place then .......:[/quote]

Roger,
You are suggesting committing the ultimate sin of adding weight (some nuts) ....This violates Colins basic philosophy

[oldelanman]

I would do a proper job

Well that's me put in my place then .......:

Roger,
You are suggesting committing the ultimate sin of adding weight (some nuts) ....This violates Colins basic philosophy [/quote]




Fair point Brian.
Maybe the best solution for Jerry would be to discard the sandwich plate altogether and then he won't need any hardware and the weight saving will be maximised.

[AHM]

I don't think I would go the nut and bolt route if it were my application.

No neither would I. They are only holding a bit of tin in place a good clean and a bit of JB weld to glue them in situ will do it. or if they are not too bad some threadlock. No need for helicoils or welding. the only stress they see is that you have done them up!

[512BB]

AHM wrote: They are only holding a bit of tin in place a good clean and a bit of JB weld to glue them in situ will do it. or if they are not too bad some threadlock. No need for helicoils or welding. the only stress they see is that you have done them up!

Thats not strictly true Simon. There is often a bit of tension when offering that plate up, specially if you have the correct piece of foam in place at the top of the plate. So gluing it in place with JB is not something I would use, prefering a more positive fixing method. Each to their own though.

But hey, what do I know, I haven't got many Elans.

Leslie

[AHM]

Leslie,
I am referring to the bolts as this is the subject of the thread! Clamp the plate in place (foam and all!) apply threadlock, or if needed JB weld or similar.
Let it set - Job done. It is not going to come undone!

The threads are close to the edge so the over-drilling and tapping is undesirable. Welding would introduce unnecessary stresses into the casting.

But hey, what do I know, I haven't got many Elans. Leslie

What has that to do with thread repair?