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MG Midget and Sprite Technical - Top Trunnion bushes

Help!

We are on to the suspension of the midget (rubber bumper '79) we have removed the top trunnion but the bushes won't go into the hole and the pin will just not go through the centre of the bushes. It won't even go through enough to have the end poke through enough to get the nut on the end to push them all together.

Have used lots of grease, brute force and ignorance but the thick end of the pin is just too wide for the centre of the bush!

Bought the parts from moss and they are correct parts so shouldn't be a problem with parts.

Is there a nack to this?

any help much appreciated
Claire Jackson

oops, see my reply to you over on the general section (but you are right to have posted it here to the technical section!)

Norm Kerr

have done - cheers norm will speak to moss tomorrow
Claire Jackson

if i have understood you correctly. . .have you tried using washing up liquid on the bush and a clamp like one of the 'Solo' types so your pressing the bush into the top of the trunion ? this method means you are only having to compress the bush gradually rather than being tempted to bash it and the effort being dissapated out from the bush . . .make any sense ?
p bentley

From reading what you said in your post in the general section about the bushes being 2mm too big all round, it sounds like you have been given inner wishbone bushes by mistake. Correct part number on bag, but wrong parts in bag. Top trunnions should not be difficult. I don't think you're doing anything wrong.

Bernie.
b higginson

the inner A-pan bushes are all-rubber while the correct trunnion bushes have a steel centre tube and facing on the outside so it's easy to distinguish between the two.
David Smith

David
Inner fulcrum bushes are 8G621 which definitely have the steel crush tube. I've found too many seized in that need cutting out to forget that!
Paul Walbran

yes you're absolutely right of course; they just have a centre tube, they don't have the flat metal face one end like the 88G274 does.
David Smith

Don't use washing up liquid! Terrible idea, you should be ashamed of yourself for suggesting it! It's fine for fitting plastic guttering but think about it..why is that glasses don't smear when washed in it? Because it's full of salt! Just like adding salt to you dishwasher for shiny smear free cuttlery, washing up liquid is full of the stuff for the same reason. So what are you left with in 12 months time, a nicely hydroscopic (water loving) salty paste to rot everything it touches.

Silicone grease is the answer or failing that, vaseline in small amounts. Small amounts don't appear to soften rubber to badly like engine oil.
Robin Cohen

for anything made of rubber, the ONLY 100% correct lubricant is - rubber grease! It's red and made by Castrol and I have two *huge* tubs of it (don't ask). But it's also available in toothpaste tubes.
David Smith

This thread was discussed between 01/07/2012 and 04/07/2012

MG Midget and Sprite Technical index

This thread is from the archive. The Live MG Midget and Sprite Technical BBS is active now.