[Healeys] high oil consumption

[David Nock BCS]

There are some steps that you need to take first 
    1.    Compression test should all be about 140 to 160
    
    2.    Cylinder leak test should all be about 10% to 15%

    3.    Check rear air filter at the bottom and see if there is excessive oil at the bottom of the filter. If so remove the valve cover and you will most likely find a badly worn rocker assy. The top hole will squirt oil to high and spray everywhere in the valve cover, Then down the breather tube and into the rear carburettor.

    4.    Last the notorious oil leaks.

David Nock
British Car Specialists
209-948-8767
www.britishcarspecialists.com

From: warthodson--- via Healeys 
Sent: Tuesday, September 17, 2019 7:16 AM
To: healeys at autox.team.net 
Subject: [Healeys] high oil consumption

Our local AH club will be checking a BJ8 for high oil consumption this weekend. He says it is not leaking out. We will verify that when we inspect it. 
He added 8 quarts of oil on the round trip to Conclave recently (2100 miles total). The engine was professionally rebuilt in 2011. The engine builder has recently retired & moved to a Caribbean island so we cannot contact him, true story.
In 2012 he used 6 quarts of oil on a 5000 mile trip. About 2-3 years ago I checked the compression, performed a leak down test & inspected the spark plugs. Every thing was in the normal range.
My question is: If the engine passes all the usual tests this weekend, what are some of the unusual ways you have come across that could cause high oil consumption & how would we test for them? 

Gary Hodson


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