80 ci evo help

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Sep 26, 2010 | 10:28 PM

#11

Tactical111

Road Master

Joined: Aug 2010

Posts: 1,205

Likes: 18

From: SE Michigan

Off topic...

Quote:

Originally Posted by 96roadking

are the lifter blocks loose?

Or maybe a lifter tube seal? Damn, that Road King of yours is nice, Jeff.

Sep 26, 2010 | 11:28 PM

#12

PakMul

Cruiser

Joined: Sep 2010

Posts: 178

Likes: 0

From: Albany, Oregon

Pushrod tube seal

Could you have a pushrod tube o-ring leaking, or one just not seated correctly?

Sep 27, 2010 | 03:16 PM

#13

drjones

Cruiser

Joined: Dec 2009

Posts: 181

Likes: 0

It is more than likely a gasket. Before pulling heads, run a compression test, it is a lot easier. A little pressure in the engine block will cause the bubbles, nothing to worry about.

Sep 27, 2010 | 03:45 PM

#14

miacycles

Elite HDF Member

Joined: Sep 2007

Posts: 4,468

Likes: 12

From: Bluffton, South Carolina

Check the lower gaskets on the push-rod tubes, the spring in the push-rod tubes as the do weaken over time especially if they've been removed a few times. Then do the compression test with a warm engine and the throttle held open, if you have a low cylinder put some oil in that cylinder and repeat it. If the compression goes up then you probably have a ring seal problem. A properly done leak-down test would definetly help pinpoint the problem.