Alvin,
Best to check with your favorite roadster part supplier. You are best
off using the original springs. Most replacement (generic) items are too
stiff, and just lead to wearing out the throttle shafts over a period of
time.
Need to search the net, but someone had an excellent write up on making
your own springs. I made some with piano wire and a very slow turning
lathe, wooden dowel, and pair of gloves. Still I do not recommend doing
that as you could loose a thumb if not careful! Trick was to heat,
quench, and reheat, then quench again so it didn't stretch nor break off
the ends. It has been too long to remember the details!
Also when the springs attach to the heat shield: the attachment points
will break off with fatigue. Also were the plate attaches to the intake
manifold will crack, and eventually break. My "missing spring" was
really a broken heat shield. Ended reinforcing the heat shield, with a
stiffener that I pop riveted in place. This gave stronger "ears" for
both the manifold bolts, and the spring attachments.
Tom
alvin gogineni wrote:
> On the way back from the Livermore trip I noticed my throttle kept sticking.
> Wouldn't drop back to idle unless I jabbed it. Looked under the hood once I
> got home and found the throttle return spring on the front carb missing.
> Where can I get one? Is this a Datsun specfic part? The remaining spring is
> sort of brass looking. It has to be a certain spring rate right?
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