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WD/RE Flea engine lube


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Hello,

Another Flea question, sorry. 

I have some Castrol D140 oil. This is used in the welbike clutch. It's very thick, almost like syrup. I was planning to mix this with grease to use in the Flea's gearbox. Whilst using 10/40w or the D140 in the clutch.

Have I got it right ? What is the best stuff to use in each please ?

Thanks all.

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2 hours ago, Red Rimshot said:

Hello,

Another Flea question, sorry. 

I have some Castrol D140 oil. This is used in the welbike clutch. It's very thick, almost like syrup. I was planning to mix this with grease to use in the Flea's gearbox. Whilst using 10/40w or the D140 in the clutch.

Have I got it right ? What is the best stuff to use in each please ?

Thanks all.

Castrol D140 is a SAE140 gear oil, not familiar with the Flying Flea, but it seems a rather heavy oil for it.

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Richard is right. Gear oil is far to heavy for the primary cases. Both the Welbike and Flea maintenance manuals call for ordinary engine oil HD 50.  But you should be able to use heavy gear oil (not EP) in the Flea gear box (The manual quotes oil C600)  Maybe Richard can remind us of the modern equivalent!  Ron

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Hello again thanks for the replies. I've cross refd the Sae140 and now I'm a little confused (sorry). I have three 'areas' to lube. 1. Flea gearbox, 2. Flea clutch/prim drive and 3. Welbike clutch.

So are we saying the Castrol D140 is ok in the Flea gearbox and the WB clutch ? The WB does drag a bit so I'd like to thin it down can I mix the D140 with some 10/40 ?

Can I use 10/40 in the Flea clutch?

Sorry again, and thanks. 

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NO gear oil in the Welbike. Where did you get that information? The manual clearly states engine oil. 40 or 50 will do. Same for the Flea. But gear oil in the Flea gearbox.

I'm sure Rob Van Meel will have the appropriate parts lists and manuals. http://robvanmeel.nl/

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6 hours ago, Ron said:

Richard is right. Gear oil is far to heavy for the primary cases. Both the Welbike and Flea maintenance manuals call for ordinary engine oil HD 50.  But you should be able to use heavy gear oil (not EP) in the Flea gear box (The manual quotes oil C600)  Maybe Richard can remind us of the modern equivalent!  Ron

Hi Ron,

Going on what you say above, a Straight 50 engine oil is approx. the same viscosity as a Straight SAE90 gear oil.

Be aware that SAE viscosity numbers do not align between engine and gear oils.

C600 is a Straight 140 gear oil, I know this for sure as we used it in army workshops in certain applications, one being worm drive axles.

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