[Healeys] loud engine clatter - tests performed - followup

[Steve B. Gerow]

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