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MG TD TF 1500 - Torque - Bellhousing and remote control?

I'm sure that this has been answered a thousand times.

> To what torque value should I tighten the bellhousing onto the engine and sump of my TF-1500?
> What torque value for the remote control to the gearbox?

I'm trying to reduce my ham-handed approach to tightening nuts and bolts by using a torque wrench instead of brute force. I'm a real novice at this.

Looking at various torque documents on Bud's Ttalk, it looks like I should torque the bolts holding the bellhousing to the block at 25 ft-lb. Is the 25 ft-lb torque for bolts into the cast iron block and into the aluminum sump? I'm using new bolts from Moss, square British-style lock washers, and anti-seize.

I am using new M8 X 1.0 bolts from Moss for the remote control to gearbox. Square lock washers and anti-seize. (BTW - looks like I need to grind off about an eight inch from the 1" bolts to keep from bottoming out.)

Thanks for your help,

Lonnie
TF7211
LM Cook

Lonnie - Adding anti-seize to the mix should derate the torque (any lubricant reduces the torque to obtain the same clamping force of a given torque, but I don't know how much to derate the torque). Hopefully Bob Grunau will speak up on this issue. Cheers - Dave
D W DuBois

I bet 25 would strip the fine thread bolts into aluminum, especially with lubricant. Hard to describe, but medium-snug best. I would use a socket wrench and hold with thumb at the pivot, then tighten (ie not out at the end of the handle). It is rare to find the pan bolt holes that have not already been stripped and/or repaired. George
George Butz

1 3rd of my pan bolts were stripped and the rest were close to stripping also. I drilled them all out and inserted Helicoils using the Helicoil kit. I *torqued* them by hand and feel, no dial indicator. I used star washers and no Loctite. Reason no Loctite, didn't want the Loctite to grab the Helicoils and screw them out if I wanted to remove the bolts later for some reason. The remote, star washers and torqued to 25ft lbs. Works for me. I only use star washers where aluminum is involved not regular lock washers. PJ
Paul S Jennings

Thanks -

Some friends from our MG club are going to help me install the gearbox on Saturday. I'll choke up on the wrench and be "gentle yet firm". (Are we talking about horses or bolts!!)

Should I use anti-seize on all of the bolts?

Lonnie
TF7211
LM Cook

Anti-seize won't hurt Lonnie. I use it all the time, I just don't use it where Helicoils are present for reasons given. PJ
Paul S Jennings

As much as the back of my engine leaks, no need for anti-seize on may car. George
George Butz

One of the reasons why standard spanners increase in length with their bolt sizes is that, in theory anyway, you apply the same force to each spanner and the different leverage gives the correct torque.

However, I wouldn't bet on that for bolts running into an ancient aluminium thread.

David
D A Provan

Lonnie, I screwed up, I had Anti-seize on the brain, when I meant to say Locktite. Sorry
Paul S Jennings

This thread was discussed between 06/03/2015 and 07/03/2015

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