Author Topic: Alloy Sump plate and gauze filter?  (Read 1086 times)

Online Joolstacho

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Alloy Sump plate and gauze filter?
« on: 28.06. 2022 09:01 »
I just treated my SR to a very nice finned sump plate with removable magnetic drain plug.
The old sump plate has the brass filter gauze soldered into it's recess as standard. Should I make a new flat gauze and fit it between gaskets?
I could make a new 'dished' one but obviously ally and solder won't work. Set it in with Epoxy? Or... what do the gurus do?
Or maybe the magnetic plug is enough that the gauze isn't necessary.

Offline Greybeard

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Re: Alloy Sump plate and gauze filter?
« Reply #1 on: 28.06. 2022 09:31 »
When I bought my finned style sum plate it came with a gauze mounted in a frame that gets clamped between gaskets. They must be available somewhere.
Greybeard (Neil)
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Online Joolstacho

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Re: Alloy Sump plate and gauze filter?
« Reply #2 on: 28.06. 2022 10:34 »
Hmm I've had a nice sheet of fine brass gauze hanging around for years just waiting for this project!

Offline Rocket Racer

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Re: Alloy Sump plate and gauze filter?
« Reply #3 on: 28.06. 2022 10:52 »
the billet ones with the centre bolt dont come with the gauze or gaskets but gauzes are available. more annoying for me was the billet type dont have space to run with studs and nuts without machining around the holes…discovered after i fitted longer studs
A good rider periodically checks all nuts and bolts with a spanner to see that they are tight - Instruction Manual for BSA B series, p46, para 2.
New Zealand

Offline Jim S

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Re: Alloy Sump plate and gauze filter?
« Reply #4 on: 28.06. 2022 12:25 »
The gauze plate is p/n 71-1126.
Here is an example supplier:
https://www.feked.com/bsa-oil-sump-plate-filter-gauze-a7-a10-a50-and-a65-models-en.html.

Offline Greybeard

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Re: Alloy Sump plate and gauze filter?
« Reply #5 on: 28.06. 2022 12:40 »
I just checked on eBay and found none cheaper than the fecked one
Greybeard (Neil)
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Offline Richard Hinton

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Re: Alloy Sump plate and gauze filter?
« Reply #6 on: 28.06. 2022 12:43 »
Try classicbikepartschesshire.com
For your sump gauze, I would run not without it if your return pipe gets blocked no oil to rockers and your breather will blow out oil all over the place, very messy.
Part number 71-1126
£17.39

Good luck
1960 GF

Offline RichardL

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Re: Alloy Sump plate and gauze filter?
« Reply #7 on: 28.06. 2022 13:04 »
I just checked on eBay and found none cheaper than the fecked one

I didn't check shipping, but SRM is 15p cheaper for the part, so, you can take yourself out for a steak dinner.

Richard L.

Online Joolstacho

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Re: Alloy Sump plate and gauze filter?
« Reply #8 on: 28.06. 2022 13:19 »
Think I ll make one.

Offline RichardL

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Re: Alloy Sump plate and gauze filter?
« Reply #9 on: 28.06. 2022 14:11 »
Think I ll make one.

Ah, yes! Australia.

Richard L.

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Re: Alloy Sump plate and gauze filter?
« Reply #10 on: 29.06. 2022 01:36 »
Anyone have any comment about the possible 'influence' of a magnetic drain plug on the ball in the scavenge tube?

Also... (and I'm sure I'm overthinking this). The original sump plate includes the gauze which rises approx 13mm (Arfaninch) above the level of the crankcase/plate surface.
If I fit/make a flat gauze plate like the Fecked one, the gauze ends up lower by about 13mm instead of 13 mm above it. So it's about 13mm lower than original setup.

Does anyone care? :-0

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Re: Alloy Sump plate and gauze filter?
« Reply #11 on: 29.06. 2022 06:38 »
FYI, I stock both types of sump plates, cast and billet, and I stock the gauze filters. I'd recommend drilling out the holes in the sump plates to take the nuts which normally hold tappet covers on so that you don't have to disturb the studs.

Online Joolstacho

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Re: Alloy Sump plate and gauze filter?
« Reply #12 on: 29.06. 2022 06:47 »
Cheers mate, I will use my existing studs I think. but it would need refacing the washer/nut lands, can do.
Trouble is with small parts from UK or US, postage to Oz can kill the value!
OTOH I need to order other parts (Auto advance bits) from you, so maybe we could sneak a gauze plate in the package!

Offline muskrat

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Re: Alloy Sump plate and gauze filter?
« Reply #13 on: 29.06. 2022 10:10 »
G'day Jools.
Use tappet cover studs and nuts. No meddling with the plate needed. Both mine use them.
Cheers
'51 A7 plunger, '57 A7SS racer now a A10CR, '78 XT500, '83 CB1100F, 88 HD FXST, 2000 CBR929RR ex Honda Australia Superbike .
Australia
Muskys Plunger A7

Offline Greybeard

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Re: Alloy Sump plate and gauze filter?
« Reply #14 on: 29.06. 2022 13:12 »
G'day Jools.
Use tappet cover studs and nuts. No meddling with the plate needed. Both mine use them.
Cheers
+1
Greybeard (Neil)
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A Distinguished Gentleman Riding his 1955 Plunger Golden Flash