Extreme Bogging (Not Mudding)
Post Fiend
Joined: Mar 2011
Posts: 8,501
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From: Lynchburg, VA
ok so its a 2bbl on an adapter plate on a 4bbl intake, and i was just checking things out while it wastnt running and i was throttling it, and i see that where the adapter plate meets the manifold, there is some gas seeping out on both sides, could this cause the bogging?
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Senior User
Joined: Aug 2012
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It may be working, but just not very well. An engine without a load on it won't require as big of a squirt to get going. Definitely should check the pump to see if it's shooting two solid streams. The diaphragm is probably hardened up and not working well.
To the OP: Pull the air cleaner off your carb (engine off) and look down the throat of the carb while opening the throttle. You should see two solid shots of gas.
By the way, those mixture screws are the idle mixture screws. Adjusting those will make no difference off idle.
To the OP: Pull the air cleaner off your carb (engine off) and look down the throat of the carb while opening the throttle. You should see two solid shots of gas.
By the way, those mixture screws are the idle mixture screws. Adjusting those will make no difference off idle.
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Senior User
Joined: Aug 2012
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it doesnt bog down then come back to life, if you give more than 1/8th pedal it just straight bogs down, even if you hold the gas to the floor for 30seconds or more no change, just steady 10mph bogging
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Senior User
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the gas only seeps out when the engine isnt running, doesnt seep out when its running
Post Fiend
Joined: Oct 2009
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From: town of less than 200 ppl
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Senior User
Joined: Aug 2012
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well ill be darned, that it was it!! my bogging has improved by 90% she is very much drivable noww!! i still think there is a little bit to be desired even with that little tiny holley. i do have another question though, i advance my timing, little by little to get it right, and i adjusted one more time and it ran fantastically, but i guess it was advanced too far, becausde it wouldnt crank when it got hot, soo my question is why does it run so much better, and yet not supposed to be that far advanced?
Lead Driver
Joined: Mar 2010
Posts: 5,250
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From: West Virginia
most engines make more power running with the timing advanced a fair bit... problem is if you advance it too far it is prone to detonate, so you don't want to run on the edge. though the compression on that thing should make detonation a near non issue.
Post Fiend
Joined: Oct 2009
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From: town of less than 200 ppl
Did you experience "dieseling"?
That happened to me for the first time a couple weeks ago with my 429. Sure was interesting when I turned the engine off and it wanted to keep running!
That happened to me for the first time a couple weeks ago with my 429. Sure was interesting when I turned the engine off and it wanted to keep running!
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Senior User
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not quite sure what you mean by detonate but i backed the timing off a bit where the power was really good just so it would start better while hot, cause when i advanced too far it would drag while trying to start while hott
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Senior User
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not quite sure what you meann, but nothing wierd happened so i dont think i have
Post Fiend
Joined: Oct 2009
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From: town of less than 200 ppl
Detonating is pinging. That is like smacking your pistons with a sledgehammer. Dieseling is when you turn the ignition off and the engine keeps trying to run, and it fires a few more times even though the engine is "off"