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[Healeys] loud engine clatter - tests performed - followup

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Subject: [Healeys] loud engine clatter - tests performed - followup
From: "Steve B. Gerow" <steveg@abrazosdata.com>
Date: Sat, 17 May 2008 17:46:05 -0700
Per Mike Salter's suggestions, ran some tests:

1) nothing unusual visible thru sparkplug holes; no bits on small magnet
inserted thru each hole.
2) Unfortunately ruined pertronix trying to short plugs to ground, so
shorting cylinders wasn't performed.
3) compression front to back: 168-130-165-163-167-162
4) tested leakage on cyls 2 & 4--#2: substantial hiss coming from pushrod
holes.  #4 barely audible hiss. No hiss audible from intake, exhaust and no
bubbles in radiator.

Therefore it seems there may be a piston problem. Next step will likely be
to pull the head.

Received suggestion from a BJ8 owner, Frank, who'd had sticking tappets
which he said caused a similar loud noise. Will be researching that one
before yanking the head.

To Len: I adjusted the valves recently and there's no problem with the crank
nut.

-- 
Steve Gerow
Pasadena CA
59 BN6
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