Author Topic: Gearbox oil  (Read 386 times)

Online BigJim

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Gearbox oil
« on: 20.09. 2019 23:16 »
What gearbox oil would you recommend for a swing arm gearbox?
Jamie,  Supporter of Distinguished Gentleman's Ride

Offline berger

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Re: Gearbox oil
« Reply #1 on: 20.09. 2019 23:25 »
I use straight 50 engine and box, buy it in 5 gallon drums quite cheap from Aztec oils and at the price can afford to change the engine oil every 800to 1000miles have done this for years even before Aztec oils I used to strap a 5 gallon of straight 50
 on the bike bought from the Belper depo refinery

Offline morris

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Re: Gearbox oil
« Reply #2 on: 21.09. 2019 21:45 »
What gearbox oil would you recommend for a swing arm gearbox?
*woo*
Another oil thread *smile*
Penrite’s Gearbox 30 is a good choice
https://www.penriteoil.com.au/products/gear-box-oil-30
'58 BSA A 10 SA
'52 BSA A 10 Plunger
'55 MORRIS ISIS
The world looks better from a motorbike
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Online duTch

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Re: Gearbox oil
« Reply #3 on: 22.09. 2019 01:28 »

 Following on from The Owain hijack- I noted last night that the Tranny oil I've been using is Castrol EPX 90 that I bough about 10 years ago to change the oil in my Fourby but haven't quite gotten around to..... *conf2*

 I've had to drain the Beeza box a few times and each time generally intend to reuse the oil but end up using use fresh stuff because I get impatient waiting for the used stuff to settle in separate clear juice bottles......initially it had the 'brass glitter' which I attributed to new bushes but I think there may still be some glittery residue each change all settle fairly well, and which I'm still monitoring- when I find the samples *doubt*

 John CL- I'm sure you don't need me telling you how or why, but mine was also jumping out of third, and on investigating I found the dogs were all pointy so changed the gear and now is fine. I think it's actually an early box maybe from a longstroke (flat kicker spring) so if I recollect *all* the gears (or most) needed to change because they're different and wasn't sure if they should all be pointy because they were uniformly so... *dunno*

 not sure if I'm finished here, but stuff to do.......


Started building in about 1977/8 a on average '52 A10 -built from bits 'n pieces never resto intended -maybe 'personalised'
Have a '74 850T Moto Guzzi since '92-best thing I ever bought doesn't need a kickstart 'cos it bump starts sooooooooo(mostly) easy
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Online bsa-bill

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Re: Gearbox oil
« Reply #4 on: 22.09. 2019 09:24 »
Hold on folks "Glittery bits" suggest wear - particles being sheared off, not a chemical reaction to an oil additive, or am I missing something (not an entirely rare event)
All the best - Bill
1961 Flash - stock, reliable, steady, fantastic for shopping
1959 Rocket Gold Flash - blinged and tarted up  would have seizure if taken to  Tesco

Offline berger

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Re: Gearbox oil
« Reply #5 on: 22.09. 2019 13:40 »
bsa bill the additives in EP oils contain sulphur which starts to react with copper speeding up wear.

Online chaterlea25

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Re: Gearbox oil
« Reply #6 on: 22.09. 2019 13:54 »
Hi Dutch,
The gearbox was built from 99% NOS partss when I rebuilt it, that said 3rd was never quiet  *????*
Time will tell what problems lie inside it *????* *????*

John
1961 Super Rocket
1963 RGS (ongoing)

Offline RogerSB

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Re: Gearbox oil
« Reply #7 on: 22.09. 2019 14:27 »
Have a look here. I've mentioned Westway Lubricants before.
See screen capture of the description which says yellow metal safe - can't be clearer.
https://www.ebay.co.uk/itm/5L-Classic-EP80w90-Gear-Oil-GL4-GL-4-80w-90-5-Litres/111669846650

(Edit): I suppose it depends on what EP oil you buy.

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Offline berger

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Re: Gearbox oil
« Reply #8 on: 22.09. 2019 17:36 »
well it says its safe so it doesn't contain the additives of other EP oils . nice to know plenty people be happy with buying that *smile* I will still use 50 because MR Haynes says so. no not really because of Mr Haynes, because its cheap enough in a 5 gallon tub from aztec *good3*

Online Greybeard

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Re: Gearbox oil
« Reply #9 on: 22.09. 2019 19:33 »
Have a look here. I've mentioned Westway Lubricants before.
See screen capture of the description which says yellow metal safe - can't be clearer.
https://www.ebay.co.uk/itm/5L-Classic-EP80w90-Gear-Oil-GL4-GL-4-80w-90-5-Litres/111669846650

(Edit): I suppose it depends on what EP oil you buy.
Thanks Roger, I've placed an order.

Offline Minto

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Re: Gearbox oil
« Reply #10 on: 28.09. 2019 03:29 »
Nice one Roger, the way my box has started leaking recently I’ll order a couple I think.
52 A10 plunger

Online BigJim

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Re: Gearbox oil
« Reply #11 on: 28.09. 2019 10:34 »
Me too.
Jamie,  Supporter of Distinguished Gentleman's Ride

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Re: Gearbox oil
« Reply #12 on: 30.09. 2019 20:41 »
Thanks Roger.
They also do a SAE140 which will be ideal for my Sunbeam S7D rear drive with a bronze wormwheel. I currently use Castrol D which is about three times the price.
OK not a BSA but built under the same roof  *whistle*

Jim
1959 A10 SR
1938 Wolseley 14/60
1955 Ferguson TEF20 tractor
1965 Ferguson 135 tractor
1952 Matchless G80 rigid
1960 BMW R60
1954 Matchless G80S
1955 Ariel 500 VH
1951 Sunbeam S7DL
1960 Matchless G12 with Watsonian Monza
......and loads of lawnmowers

Too old to Rock and Roll but too young to die  (Jethro Tull 1976)