Your might try a lighter dash pot oil. 10W30 is a bit heavy, IMHO. Try
some ATF and see what happens. It is cheap and quick so if it doesn't cure
it you're not out much.
Best regards,
Fred Schroeder
Denison, TX
SRL311-13359
TDROC
Reg e-mail sitsinwest@texoma.net
Home page http://home.texoma.net/~sitsinwest
----- Original Message -----
From: "Amy & Erik" <erikandamy@integraonline.com>
To: <datsun-roadsters@autox.team.net>
Sent: Saturday, September 14, 2002 1:48 PM
Subject: U20 SU Carb trouble
> I am having trouble getting my carbs tuned. Mine have rebushed throttle
> shafts and were recently installed.
> Car is a de-smogged and recurved U20. NOS N-17 needles. Timing is set at
16
> deg
> It idles fine around 6-700. Carbs are balanced.
> I just got a colortune. My spark was blue and slightly orange- though I
> thought it would be more consistent.
> Dashpots have 10w30 in them, move freely but don't make any thunk as they
> hit the bottom. Car is plenty warm and it is 65 degrees outside.
> Plugs are grayish black, and dry.
>
> Runs bad- backfires a bit out the carbs, has no power. Stumbles off
idle.
> Sometimes after it gets past 3000rpm it seems to take off fine, but not
> under load.
>
> I have many, many downloaded instructiuons on tuning SU's (which could be
> part of the problem)
>
> Usually someone from the list can sum up the solution in one word. What
am
> I doing wrong?
>
> Please help.
> Erik Smeby
> 2L 1600
>
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