6pack
[Top] [All Lists]

Re: [6pack] Early vs Late Head

To: 6-Pack <6pack@autox.team.net>
Subject: Re: [6pack] Early vs Late Head
From: "John VanNorman" <jsvannorman@gmail.com>
Date: Sat, 10 Nov 2007 16:26:40 -0500
Question for the group.   Originally I had a problem with the engine
rpms on the old man's TR6 gradually increasing as the car sat idling,
but after doing a rebuild of the carbs, that problem was taken care
off.   But now I have a new problem.

When coasting or braking after accelerating, the engine rpms are
dropping back down very, very slowly - slower than they should.  For
example, if the engine is running at 850 rpms and you hit the throttle
(either driving or just sitting still), taking the engine up to say
2000 rpms, instead of quickly dropping back down to 850, it instead
slowly slides down, taking 4 to 6 seconds to drop back down to 850
rpm.

Could it be a problem with the air valve in the carb not dropping down
fast enough?  Too thick damper oil? (using 10W40 right now, but am
going to switch to 3 in 1 oil as mentioned in Nelson Riedel's
article).

Thanks.

John V.
1974 1/2 TR6

-- 
www.vannorman.no-ip.org




<Prev in Thread] Current Thread [Next in Thread>