Author Topic: Engine breather  (Read 7092 times)

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Offline andychaos

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Engine breather
« on: February 05, 2017, 07:38:12 AM »
What are the rules regarding  engine breathers for BMST. Do we have to use a catch tank or can i get away with just a filter.
Cheers Andy
 

Offline Stainless1

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Re: Engine breather
« Reply #1 on: February 05, 2017, 10:57:41 AM »
last time we ran that one any fluid that could come out of a vent required a catch can
Stainless
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Offline andychaos

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Re: Engine breather
« Reply #2 on: February 05, 2017, 02:14:41 PM »
What I expected but thought I would ask.
Cheers Andy

Offline sofadriver

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Re: Engine breather
« Reply #3 on: February 05, 2017, 10:25:09 PM »
No mention of catch tanks in SCTA rules but I'll be running them for sure this year. I run Dumonde Tech 2-stroke oil/gas mix and had some come out the fuel tank vent line on the trip back from the salt. Got all over the frame and the only thing that will take it off is acetone. It also worked great at removing the top layers of paint!  :cry: Definitely running catch tanks this year.
Mike in Tacoma

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Offline comet

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Re: Engine breather
« Reply #4 on: February 07, 2017, 03:08:13 AM »
Will we be seeing you all there this year Andy?

Offline andychaos

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Re: Engine breather
« Reply #5 on: February 08, 2017, 12:05:19 PM »
Yes we will be there but only with the BSA, and greatly depleted numbers.
The lads with the 125 Honda are going to the Manx GP this year.
« Last Edit: February 08, 2017, 12:09:00 PM by andychaos »

Offline panic

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Re: Engine breather
« Reply #6 on: February 08, 2017, 03:37:14 PM »
Andy - what engine, what does the breather opening look like?

Offline andychaos

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Re: Engine breather
« Reply #7 on: February 08, 2017, 04:02:35 PM »
It's a BSA B50, the breather is a 5/8 bore pipe which exits from the top of the primary cover.
You can just make out the black hose to the rear of the barrel also on the bike (CCM same engine) in the background.
Andy
« Last Edit: February 08, 2017, 04:07:20 PM by andychaos »

Offline wobblywalrus

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Re: Engine breather
« Reply #8 on: February 09, 2017, 09:10:43 PM »
The breather is something that is worth testing in simulated race conditions.  It took me several tries with different locations to figure out where to put it so oil would not blow out with the air.