I have had a difficult time tunin hif carbs on several mgb's
Bottom line is that if you tune by the book they run waaaaay too lean
They wrote the book and developed the tuning for emissions purposes, not
performance or drivability. They idle too lown run too lean and the advance
at idle is tooo retarded and there isn't much adjustment. nothing more,
nothing less
This would appear to be exacerbated by modern fuels
Make sure you aren't sucking air at the throttle shafts and advance timing and
richen mixture till it runs right, provided your mech and vac advance are
working right
It will run better but won't pass an emissions test
----- Original Message -----
From: Charlie Baldwin [mailto:mgcharlie at comcast.net]
Sent: Monday, June 27, 2011 06:58 PM
To: healeys at autox.team.net <healeys at autox.team.net>
Subject: Re: [Healeys] Off Topic Rolls Royce Running Resources
Greg,
Two ideas:
Contact the RROC who not only have a club, but service Rolls Royces also.
http://www.rroc.org/content.asp?pl=338&contentid=338
Later MGBs have HIF carbs, so any British car mechanic should be able to
work out the problems. I never heard of 1 7/8 " SU carbs, but I also
never had a Rolls Royce.
Charlie
On 6/27/2011 8:22 PM, Greg Lemon wrote:
> I have a Rolls Royce Question from a contact through our club if anyone
has
> any knowledge or if there is a Rolls Royce resource like the Healey list
you
> know of you can reply off list and directly to the person in question:
>
> 1st note from Josh:
>
> "Josh Shafer<josh.shafer at hotmail.com>
>
>
> My name is Josh Shafer. I recently stumbled upon your club and am hoping
that
> you might be able to help me out. I know the club is for Austin Healey's,
but
> I have a question about the carbs on a '79 Rolls Royce. I know that both
cars
> use the same brand so I thought maybe you could give me some advice or
point
> me in the right direction. The car is located in North Platte. We bought
the
> car over a year ago knowing it needed some carb work. We were able to find
a
> local guy in NP who also had an AH. He was able to rebuild the carbs, but
we
> have had a very hard time getting them dialed in. The car runs, but it has
> idle problems and it is just a pain to try to get them running properly.
Any
> insight or literature you might have would be greatly appreciated.
Moreover,
> if you know of anyone in the NP area who might be knowledgeable, I would
love
> to get a hold of them. Thanks for your help - Josh"
[demime 1.01d removed an attachment of type text/x-vcard which had a name of
mgcharlie.vcf]
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