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RE: 2L SU carb service screw to thermo valve interferance

To: "'Datsun Roadsters list'" <datsun-roadsters@Autox.Team.Net>
Subject: RE: 2L SU carb service screw to thermo valve interferance
From: "Pete Peters" <ppeters914@comcast.net>
Date: Tue, 4 Jan 2005 12:49:44 -0800
Is this only a 2L SU carb issue that me and my 1600 SU's can ignore?

                        `  ___  '   
Pete                   -  (O o)  -  
----------------------ooO--(_)--Ooo---------
Lake Forest Park, WA
1966 1600 (SPL311-00799)

-----Original Message-----
From: owner-datsun-roadsters@Autox.Team.Net
[mailto:owner-datsun-roadsters@Autox.Team.Net] On Behalf Of
Keith0alan@aol.com
Sent: Monday, January 03, 2005 6:38 PM
To: datsun-roadsters@Autox.Team.Net
Subject: 2L SU carb service screw to thermo valve interferance problem fix


Hello all,
 
    The problem of the service screw hitting the "valve  return fuel 
assembly" (as Nissan calls it) came up a few days ago. The problem  happens
when the 
float bowl rotates on the mounting bolt. The throttle sticking  open is the 
usual consequence. After looking at several carbs and doing some  head
scratching 
I have come up with a fix that I like. Two things are done.  First the head 
of the service screw is reduced in thickness allowing a bit more  room.
Second, 
the carb body is drilled and a dowel pin is inserted to limit the  rotation 
of the float bowl.

    For anyone who has a set of my 2L carbs I will make  this modification
at 
no cost. Contact me off list for details.

    When I did the original refurbishment I returned  the carbs to the 
original Nissan configuration and most of the time there was no  problem. A
couple 
of folks did have problems so I am offering this fix. 
 
keith "roadster ranch" williams






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