Author Topic: Scavenge pipe blockage  (Read 1202 times)

Online muskrat

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Re: Scavenge pipe blockage
« Reply #15 on: 05.12. 2015 05:39 »

 Dry sumpers are advised to always check for a return oil flow; I wonder if everybody always does.
[/quote]

Every time I start.
'51 A7 plunger, '57 A7SS now A10CR,  '83 CB1100F, 88 FXST .
Australia
Muskys Plunger A7

Online Greybeard

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Re: Scavenge pipe blockage
« Reply #16 on: 05.12. 2015 09:18 »
...after all it is only oiling the rockers the rest of the engine is still getting oil until you empty the tank into the crank case, cheers

Can you explain that please Musky?

Offline bobandbec

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Re: Scavenge pipe blockage
« Reply #17 on: 05.12. 2015 10:43 »
Wouldn't it be dodgy (and very smokey) to run if there was no return to the tank.
How long would it take to empty the tank into the sump if the pump was working?

Peter

Online muskrat

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Re: Scavenge pipe blockage
« Reply #18 on: 05.12. 2015 18:49 »
Rockers are fed by returning oil. They can last for quite some time just on mist.
With no scavenge happening the sump would fill/tank would empty in about 10-15 minutes at idle. At about the 2-3 minute mark she'd be smoking, after 5 minutes she'd be creating puddles, doubt she'd run with a full gut of oil.
Cheers
ps, anytime I have the sump plate off I give the pipe a squirt or carb clean.
'51 A7 plunger, '57 A7SS now A10CR,  '83 CB1100F, 88 FXST .
Australia
Muskys Plunger A7

Online metalflake11

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Re: Scavenge pipe blockage
« Reply #19 on: 05.12. 2015 19:09 »
I'm glad you were able to sort it out. Dry sumpers are advised to always check for a return oil flow; I wonder if everybody always does.
[/quote]

I always use clear pipe to the rocker feed and I can see it as I ride. Wouldn't have it any other way.
The bike isn't standard though.
England N.W
1960 A10
England