Well ive got these ‘dry fit’ and Im not sure what my expectations should be with regards to how fully they should shut. As you might guess I can see slivers of light through the plates when they are shut. Any adjustments so far as I can tell would come from fiddling, for lack of better word. I wonder what the right approach is.
If its like the carbs the plate will move around a little bit when the shaft screws are loose allowing you to get the plate seated all the way around in the bore. Tighten them up with the throttle closed.
@r-mm - great write-up...thanks for doing it. I am in the midst of the same work but I am unfamiliar with the fastener in the picture below. How did you extract it to get the throttle spindle out? Seems like a delicate fastener, so guessing driving it out is not the way.
1. Once you pull the cam out of the throttle body you may have a bearing corroded in the throttle body. It was far too small for any puller I had, so a long piece of threaded rod (or non-threaded for that matter) that fit through the throttle body cam holes but still catches the inner race of the stuck bearing is a good way to get it out. Just a couple pops of the hammer and it will come out.
2. Getting the corroded bearing from the other side off the cam is a similar challenge. Note that the bearing (and the end piece pictured below) need to be pushed off the near end as there is a shoulder on the cam that the bearing race rests up against.
Then press the cam out of the end piece (can prob do in a vise, too):
And a last observation. When installing the butterflies back in the throttle bodies note they do have an orientation. If they aren't sealing well, you probably have them in backward, upside down...whatever. And press the butterfly closed and allow it it self-center in the throat before tightening the screws. That will enable a better seal.
Hi All, Happy Easter Weekend,
Quick Question: I have a 1974 GTV with Carburetors and my mechanic installed a Spica Fuel Filter before the Fuel Pump (low pressure) and now it runs poorly.
Should the Spica Fuel Filter work the same as a Regular Fuel Filter for Carburetors?
Maybe something else...
Lately I've been working on a 1300N equipped with a 36DCD and I've noticed the robust RPM increase when using the "choke knob" on the dash when start and run.
My car is a '60 spider abnormale 1600 with 40DCOEs. Pulling the choke knob on twin webers results in some enrichment but no real...
My spider came with a box of assorted extra parts...this pipe appears to be for fuel supply. I think the PO removed it and ran straight hose for some reason...It's possible that when they replaced the old 3 port fuel pump to a newer 2 port style it was no longer needed. where should it go? Is...
Hello, This site has been very helpful to me in the past and I hope you folks can guide me this time. I am looking for a manual on the Spica fuel injection pump. I do not need tuning info nor do I need the names of re-builders. What I need, if available is a detailed diagram of the inside of...