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> need help with a couple issues with motor startup
MrHyde
post Oct 8 2013, 10:47 AM
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got a couple issues I could use some advice on. 2316cc with weber 44's

1: CHT i gave a micro1000 CHT gauge.. its not reading anything.. i have it under #3 cylinder and its connected to the extension line and heat shrinked and on the gauge its red to + and purple to - . this is the only way it will go as one is a male and the other is a female connector.

2: carbs are running lop sided. right bank is pulling about 5 and the left side is pulling 12-14. this is with the idle speed screws backed right off. Any adjustments on the right banks mixture screws do pretty well nothing until closed and then is sputters a bit. Adjusting the mixture screws on the left side start making changes to the idle and sound of th engine immediately..

3: voltage gauge is not reading anything but the idiot light does go out once the motor is running

4: fuel gauge and the temp gauge ( in combo gauge) are both pegged.. I think this is most likely ground. i'll check that in a min. I only put a couple gallons of gas in the tank.


side note.. once motor was warmed up doing cam break in the oil pressure was steady at a hair over 20psi andi only have one small drip of oil on one valve cover, which i'll look at when i do a valve adjustment.



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ThePaintedMan
post Oct 8 2013, 12:33 PM
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I have the same issue. Do you have the older style Webers without the circular throttle return spring attached to the throttle shaft on each carb?

I have spoken with Chris before and it seems that some carbs (I think the older/early Webers) do not have enough tension on them to pull the "slave" carb's throttle plates back closed. If you manually rotate the pulley on the slave carb, you can get them to close better, and the idle should drop as well.

Chris recommends a shorter/stronger return spring on that slave carb to pull the plates closed. I shortened mine significantly and I still have the same issue, so my solution will be to fabricate a bracket which holds an additional spring on the outside of the carb to help pull the plates closed. My car is with a friend at the moment getting some cage work done, but when I get it back, I'll post pictures of whatever I end up making.
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MrHyde   need help with a couple issues with motor startup   Oct 8 2013, 10:47 AM
ThePaintedMan   First, most important part - oil pressure. What rp...   Oct 8 2013, 11:00 AM
MrHyde   just over 20psi at just over 2000 rpm where I was ...   Oct 8 2013, 11:08 AM
ThePaintedMan   I have the same issue. Do you have the older style...   Oct 8 2013, 12:33 PM
MrHyde   I believe I have early italian webers.. Theres onl...   Oct 8 2013, 01:40 PM
peteyd   got a couple issues I could use some advice on. ...   Oct 9 2013, 06:19 AM
Mblizzard   On the carbs, there are more qualified experts lik...   Oct 9 2013, 07:13 AM
MrHyde   I did not get a chance today to get to work on the...   Oct 9 2013, 01:46 PM
MrHyde   Ok... got the valves adjusted after break in.. co...   Oct 12 2013, 08:15 PM
MrHyde   Pete: I think you're right.. switched the nu...   Oct 12 2013, 08:18 PM
ThePaintedMan   Hmm. So you're saying that you're seeing t...   Oct 12 2013, 08:58 PM
MrHyde   Hmmm. You know what. Maybe I'm going about t...   Oct 12 2013, 11:28 PM
Dave_Darling   I'm not much of a carb guy, but I'm seeing...   Oct 13 2013, 12:20 AM
Mark Henry   My first guess. I've never used the Tangerine ...   Oct 13 2013, 06:56 AM
Mark Henry   BTW rule of thumb hot engine 10psi per 1000rpm is ...   Oct 13 2013, 07:01 AM
Mark Henry   Mike I'm home if you want to call me, but my c...   Oct 13 2013, 07:21 AM
MrHyde   I thinks I'm good for pressure.. it was readin...   Oct 13 2013, 07:27 AM
ThePaintedMan   Lots of good stuff from Dave and Mark. Checking fo...   Oct 13 2013, 08:12 AM
Joe Sharp   I use a squirt gun with water in it to check for v...   Oct 13 2013, 08:24 AM
MrHyde   Just to add a bit more info.. I'm out in the g...   Oct 13 2013, 12:24 PM
MrHyde   GOT IT !!!! Video to follow aft...   Oct 13 2013, 04:42 PM
ThePaintedMan   :Qarl: :popcorn:   Oct 13 2013, 05:06 PM
MrHyde   Took her for a drive around the block and to the g...   Oct 13 2013, 08:04 PM
MrHyde   It was the carb syncing... I'm sure I had the ...   Oct 13 2013, 08:10 PM


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