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hard starting when motor gets warmed up
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Rambled View Drop Down
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Joined: Jul/12/2022
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Points: 4 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Rambled Quote  Post ReplyReply Direct Link To This Post Posted: Jul/20/2022 at 4:43am
I have a 67 rambler, starts great cold but when it gets hot it breaks up really bad, stumbles and dies. I can restart it but it stumbles at idle. 
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vinny View Drop Down
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Points: 2837 		Post Options Post Options   Thanks (0) Thanks(0)   Quote vinny Quote  Post ReplyReply Direct Link To This Post Posted: Jul/20/2022 at 8:46am
I have a 350 with a quadrajet that when hot it starts immediately after one compression stroke so I don't think it is common to all carbs. In fact it starts faster than my FI vehicles. The Rambler starts like that too sometimes but there are some hot start conditions that seem to trip it up.
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jdarosa View Drop Down
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Points: 264 		Post Options Post Options   Thanks (0) Thanks(0)   Quote jdarosa Quote  Post ReplyReply Direct Link To This Post Posted: Jul/20/2022 at 11:33am
Originally posted by Rambled Rambled wrote:

I have a 67 rambler, starts great cold but when it gets hot it breaks up really bad, stumbles and dies. I can restart it but it stumbles at idle. 

What engine/tranny? I have a ’68 with 232/1BBL Holley and similar issues. Have you checked vaccuum leaks? I had a slight leak around the throttle shaft. Turned the idle speed up a quarter turn and it solved it, until I can get a better/new carb.

Good luck.
1968 American 440 – 232/AT 4dr
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Mr_Roboto View Drop Down
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Points: 221 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Mr_Roboto Quote  Post ReplyReply Direct Link To This Post Posted: Jul/20/2022 at 8:25pm
Somewhat of a long shot but did you check your base timing? If it's too high it can cause a hot hard start.
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