Engine and Transmission Tech

tips, technology, tools and techniques related to vehicle driveline components

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roverman
Art Gertz
Winchester, CA.
(3188 posts)

Registered:
04/24/2009 11:02AM

Main British Car:
74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L

Re: Crankcase Evacuation Systems
Posted by: roverman
Date: May 21, 2015 12:48PM

If it hasn't been mentioned, a wet/dry compression or leak-down test ? If rings are leaking excessively, plugs should have oil/carbon build-up. If your build used oem style pistons, they may not have adequate oil return passages, for the oil rings. I consider this a design flaw, of some oem RV8 pistons. Good Luck, roverman.


mowog1
Rick Ingram
Central Illinois
(1523 posts)

Registered:
10/17/2007 09:36PM

Main British Car:
1974.5 MGB/GT 3.9l Rover

authors avatar
Re: Crankcase Evacuation Systems
Posted by: mowog1
Date: May 21, 2015 11:32PM

I've not yet done wet/dry compression nor leak down.

I pulled the plugs.....they all look similar to this one from #3 cylinder.

Number Three Plug 8-141-13.jpg


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(6470 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
Re: Crankcase Evacuation Systems
Posted by: BlownMGB-V8
Date: May 22, 2015 08:59AM

That's pretty clean. Not burning oil anyway.

Jim
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DiDueColpi
Fred Key
West coast - Canada
(1365 posts)

Registered:
05/14/2010 03:06AM

Main British Car:
I really thought that I'd be an action figure by now!

authors avatar
Re: Crankcase Evacuation Systems
Posted by: DiDueColpi
Date: May 22, 2015 10:36PM

Hey Rick,
can you get a better picture of the plug?
Looks like the electrode might have some oil buildup on it.
But your Oak table looks fabulous!! {;-)

Live like you mean it.
Fred
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