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Engine breather
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Topic: Engine breather (Read 7131 times)
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andychaos
New folks
Posts: 28
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
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Stainless1
Administrator
Hero Member
Posts: 8977
Robert W. P. "Stainless" Steele
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
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Stainless
Red Hat 228.039, 2001, 65ci, Bockscar Lakester #1000 with a little N2O
andychaos
New folks
Posts: 28
Re: Engine breather
«
Reply #2 on:
February 05, 2017, 02:14:41 PM »
What I expected but thought I would ask.
Cheers Andy
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sofadriver
Sr. Member
Posts: 518
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!
Definitely running catch tanks this year.
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Mike in Tacoma
"aww, what the hell - let's just do it".............
Bike #833
100cc A/G, A/F and APS/G (in 2019)
comet
Full Member
Posts: 251
Re: Engine breather
«
Reply #4 on:
February 07, 2017, 03:08:13 AM »
Will we be seeing you all there this year Andy?
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andychaos
New folks
Posts: 28
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
»
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panic
Sr. Member
Posts: 845
Re: Engine breather
«
Reply #6 on:
February 08, 2017, 03:37:14 PM »
Andy - what engine, what does the breather opening look like?
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andychaos
New folks
Posts: 28
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
»
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wobblywalrus
Hero Member
Posts: 5503
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.
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Bonneville Motorcycle Speed Trials
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Bville Motorcycle Speed Trials Rules Questions
(Moderator:
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Engine breather