[Healeys] Diesel BJ8

[Bob Spidell]

I don't think that's my problem, as my engine only has about 6,000 miles 
on it.  When we pulled the engine @ over 100K miles there wasn't a lot 
of carbon buildup (but that engine had low compression to start).  My 
recent trips have been relatively short--100 miles or less--and it's 
possible I got a tank of 'bad' gas.

Thanks for all the replies.

Bob


On 5/26/2018 1:54 PM, Peter Dzwig wrote:
> Since I have no idea what the original formulation was, I have no idea! :-)
>
> I would think it worth a try as it's still around. But does it presume a petrol
> engine of a modern design in its current formulation? The Holts website talks
> about it cleaning the system, rather than simply the injectors...
>
> Come to think of it I did stick some in my 100-6 with an unleaded head once upon
> a time and the car ran fine until I sold it. Well, apart from all the other
> Healey issues that is ;-)
>
> Peter
>
> On 25/05/2018 23:17, Patrick & Caroline Quinn wrote:
>> Hello
>>
>> Is RedEx in its original formula still available?
>>
>> It was very popular during the 1950s as it helped remove combustion chamber
>> deposits, thus delaying the need for a decoke and valve grind. If you look
>> at the RedEx website it refers to removing deposits on fuel injection
>> injectors, but nothing about combustion chamber carbon deposits.
>>
>> Then again do new modern technology cars develop combustion chamber carbon
>> deposits?
>>
>> Hoo Roo
>>
>> Patrick Quinn
>> Blue Mountains, Australia
>>
>> -----Original Message-----
>> From: Healeys [mailto:healeys-bounces at autox.team.net] On Behalf Of Peter
>> Dzwig
>> Sent: Saturday, 26 May 2018 2:20 AM
>> To: 'Bob Spidell'; 'Healeys'
>> Subject: Re: [Healeys] Diesel BJ8
>>
>> Dose of RedEx?
>>
>> Peter
>>
>> On 25/05/2018 04:16, Patrick & Caroline Quinn wrote:
>>> 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
>>>