LT77 Gearbox - Daft Question

Oldseadog · Apr 15, 2014

Are the drain plug washers on the gearbox and gearbox extention the same?

I don't really want to drain the lot only to find that the one on the filter plug is different from the one on the bottom side of the box

Actually, it might not be as daft as it first sounds

Turboman · Apr 15, 2014

Never measured them, but the ones on mine are physically different. The one on the side of the main box has a copper washer, The one under the ext. gearbox is made of a thick gasket paper. From memory alone the extension plug might be bigger. Not sure.

Oldseadog · Apr 15, 2014

Thanks for that!

I'm just glad that I didn't drain it and risk it

Turboman · Apr 15, 2014

Oldseadog said:
Thanks for that!

I'm just glad that I didn't drain it and risk it

No problem. I find the copper ones can be re-annealed several times without problems. You could cut the other out of gasket paper if yu have some. Its quite a thick one, about 1.5mm paper I would think.

jamesmartin · Apr 17, 2014

copper washers are ftc4112 and extension case washer frc4810 it isnt a drain plug but access to pump screen

Oldseadog · Apr 18, 2014

Thanks James. I have been advised to leave the filter/screen plug well alone!

Would that be your considered opinion too?

jamesmartin · Apr 18, 2014

its not usually a problem,though often tight,its worth removing if oil was dirty

Oldseadog · Apr 18, 2014

Thanks James.

I think that I might remove it and give it a paraffin wash, as it has probably never been out in 25 years!

Can't do any harm, can it?

aaronmorris · Apr 18, 2014

If it's anything like mine was you'll want to take it out.

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Oldseadog · Apr 18, 2014

Thanks for that ... I think ...

Turboman · Apr 18, 2014

Oldseadog said:
Thanks James.

I think that I might remove it and give it a paraffin wash, as it has probably never been out in 25 years!

Can't do any harm, can it?

Just treated mine to a new plug and filter. I always remove it when I change the gearbox oil, and I haven't had any problem, but I thought the threads on the plug were looking tired.
Pleased to say the filter never has any metal filings on it though, its always perfectly clean

LT77 Gearbox - Daft Question

Oldseadog

Well-Known Member

Turboman

Mab An Gov

Oldseadog

Well-Known Member

Turboman

Mab An Gov

jamesmartin

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Oldseadog

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jamesmartin

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Oldseadog

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aaronmorris

Head's a shed

Oldseadog

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Turboman

Mab An Gov

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