[Healeys] Diesel BJ8

[Patrick & Caroline Quinn]

Hello

The six-cylinder engine in the BN3 used to do the same and then we took it on some long trips of 500 miles or so. Never happened again.

Previously the use the car received was relatively short which allowed for a build-up of carbon deposits in the combustion chambers. The long runs managed to get rid of the deposits.

Remember our cars were built in an era when a decoke and valve grind was an annual or biannual event and I suspect that such a thing doesn't happen in this day and age.

Hoo Roo

Patrick Quinn
Blue Mountains, Australia

-----Original Message-----
From: Healeys [mailto:healeys-bounces at autox.team.net] On Behalf Of Bob Spidell
Sent: Friday, 25 May 2018 12:09 PM
To: Healeys
Subject: [Healeys] Diesel BJ8

No, I haven't stuffed a Cummins 6-cyl in my BJ8.  But, my car has 
started dieseling--aka 'running on'--more than it used to. Compression 
is high-180PSI give-or-take on all 6--but mixture is good (I think) and 
idle is usually around 700-750RPM depending on conditions.  Timing is 
spec (15deg BTDC at 600RPM, vacuum advance disconnected and port on carb 
plugged).   I've always run Champion RN12YC plugs, and have never had a 
problem with them, but I'm wondering if colder plugs might help.

Thoughts?

Bob

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