Castrol R?

[TygerTung]

During the battle of the buckets this year my trusty honda superbucket got a bit of water in the cylinder which put some watermarks in the bore. It now burns a little oil, which isn't so ideal as the combustion chamber gets all carboned up.

I have some castrol R30 lying around, now I was thinking of using that as it can be used as a 4 or a 2 stroke oil it would be ideal as it would burn nicely in the combustion chamber!

Now I know you cannot mix the castrol and the other mineral oils, is draining enough? or will I have to strip the engine? What if I pour a bit of kero in first to help the oil drain out?

Any ideas would be great,

Cheers,

Sam

[cs363]

All you need to know here: http://www.castrol.com/liveassets/bp..._40_M_B861.pdf


(Page 3)

Have fun and enjoy that lovely aroma!

[Mom]

Have fun and enjoy that lovely aroma!

Cool link, thank goodness you mentioned the smell....... MMMMMMMMMMM
Castrol R yummmmmmm. The memories...

[cs363]

If you can't get proper flushing oil you could probably get away with a diesel rated oil (high detergent) with a low viscosity - lower the better (most flushing oils are rated at about 0/20w and some engine flush additive and just follow the same instructions as in that link. Make sure you change the first lot of R fairly quickly after running it, that way you should be sweet.

[Motu]

Is this a 2 stroke or 4 stroke? If it's a 2 stroke just run it - don't leave the premix sitting,use what you mix.It will make a nice smell,and make lots of hard carbon.Modern castor oil doesn't gum,but you'll need to strip and clean more often.Best oil you can get for a 2 stroke.

If it's a 4 stroke it'll be in the gearbox and clutch as well....and that's good too.I'd flush with meths,or brakeclean or something.What deteriorates castor oil is contact with oxygen.As with the 2 stroke,it'll make very hard shiny carbon,you'll need to pull the head a bit more often.Bikes that run castor oil generally get pulled down after every race meeting.

[Mom]

Bikes that run castor oil generally get pulled down after every race meeting.

I have learned something, I always though that was so we could spend more money we did not have on parts...LOL. Wow, thank you for that. Not a p/t either. Thanks.

[Chooky]

Long long time ago when I had my Greeves Silverstone,I used Castrol "R".
I somehow thought it would be a good idea to tip some in the petrol tank of my BSA that I rode to work.....
Not a good idea......when it burns with mineral oil it forms a "gum" that completly gummed the rings to the pistons and ended up having to rebore the motor.
There are probably better synthetic oils around now,but nothing smells as good as "R".

[Quasievil]

There are probably better synthetic oils around now,but nothing smells as good as "R".

There are, Castrol dont make Synthetic oils, they are all highly refined Mineral oils with additives, this was challenged in USA courts but they won and can call them synthetic on this basis, but they are not developed from POA (polyalphaolefins)
So there ya Go castrol pulling the wool over ya eyes on that one.

[TygerTung]

Is this a 2 stroke or 4 stroke? If it's a 2 stroke just run it - don't leave the premix sitting,use what you mix.It will make a nice smell,and make lots of hard carbon.Modern castor oil doesn't gum,but you'll need to strip and clean more often.Best oil you can get for a 2 stroke.

If it's a 4 stroke it'll be in the gearbox and clutch as well....and that's good too.I'd flush with meths,or brakeclean or something.What deteriorates castor oil is contact with oxygen.As with the 2 stroke,it'll make very hard shiny carbon,you'll need to pull the head a bit more often.Bikes that run castor oil generally get pulled down after every race meeting.

It's on a 4 stroke. I have only done one meeting since I put the top end back together, and 2 meetings since I have put the bottom end together.

I wan't going to pull it apart every meeting, but I was going to pull it apart every season? Would that be too long?

I suppose it will only be in the top end where it is going to be causing all the problems. and that isn't such a mission to pull apart, but due to the nature of the frame the engine has to come out unfortunatly.

On the bottle it says you can use a special castrol flushing oil if the oil in the engine won't drain out very well. I might just pour a wee bit of kero in with the oil, warm it up a bit without riding it, drain out the oil, pour some kero in, pull out the sparkplug and push it around a bit, then drain it, should be clean as then!

[TygerTung]

Well I poured in 250ml of kero, warmed up the engine, then drained it out for ages, and then wanged in the castrol R, it smelled good, and it didn't blow up after taking it around the track for ages, so it must have been fine!