Rear drums stuck. Bah.

congo181 · Oct 7, 2021

So I finally got to the point in the rebuild where I could drive the ‘87 110 but it appears that both the drums are seized.
I’ve got the retaining screw out and backed off all 4 of the adjusters but even with a M10 bolt wound in the hole and some Thor persuasion they’re not budging.
What’s the next step!??

Flossie · Oct 7, 2021

With a helping hand...I used two strong flat bladed screwdrivers 180deg apart and lever in the gap between drum and backplate, keep as much pressure on as you can then tw@t the drum lip with a hammer rotating regularly.
One of the reasons I went disc brake Salisbury.

tottot · Oct 8, 2021

And Plus gas or RP 90 sprayed around the studs and flange where the drum sits.

congo181 · Oct 8, 2021

Phew. Got them both off. Thanks all.

Flossie · Oct 8, 2021

Was it the Flossie method?

congo181 · Oct 8, 2021

Flossie said:
Was it the Flossie method?

It was the ‘hit it harder Jim’ method.

congo181 · Oct 8, 2021

Well the cylinders are well past it.
Should I recon the original ones with Britpart
seal sets at £4 or fit new Delphi cylinders at £16 each or LR ones at £44 each?

Flossie · Oct 8, 2021

Examine the bores carefully, any scratches or corrosion and you are probably wasting time and some money resealing them. You may find the brake pipe fittings or bleed nipples are seized in so try those first.
If they are jammed then new is the best option, Delphi is fine.

congo181 · Oct 8, 2021

Flossie said:
Examine the bores carefully, any scratches or corrosion and you are probably wasting time and some money resealing them. You may find the brake pipe fittings or bleed nipples are seized in so try those first.
If they are jammed then new is the best option, Delphi is fine.

The bleed nipples are ok but I’ll check the unions. I think I’m the long run it makes more sense to fit new cylinders. It’s not like they’re loadsamoney.
Gives me a chance to strip and clean the back plates and drums too…

congo181 · Oct 11, 2021

congo181 said:
The bleed nipples are ok but I’ll check the unions. I think I’m the long run it makes more sense to fit new cylinders. It’s not like they’re loadsamoney.
Gives me a chance to strip and clean the back plates and drums too…

Got the unions unscrewed ok but the pistons are seized on both sides. I’m sure I could get them sorted and working again but new seals would be required all around anyway.
Got a pair of Delphi ones on order.

Rear drums stuck. Bah.

congo181

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