Cold Idling Problem
#1
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Im having trouble idling when my engine is cold, when its hot theirs no problem, I just turn the key and it starts. But when the engine temp is down, when I start the engine the rpms flucuate about 600 rpms up and down about 6-8 times before they just staedy out without doing anything, by themselves. No other signs of trouble at other rpm ranges or when its hot. Its a carburated engine with a Procharger M1. Timing is ok at 10 deg in idle, fuel pressure is 7 psi, voltage is 13, oil pressure is 43 in idle, about 5 pds of vacuum in idle, idles at 800 rpms. The carb is a mechanical dean nickerson 750 hp holley. Any help will be greatly appreciated, Thanks.
#3
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Okay, I am going to try this.
The Baja has a Holley carb on it. What I do on those cool morning or evenings is pump the throttle a few times before I start her. Feed her! She wants fuel. She ALWAYS fires up when I do that. Then I let her run a little before I back her off the trailer.
Now I am sure the men who dominate this forum will tell you I am wrong, but that seems to work for me.
I have always been afraid of her back firing so I am super careful.
Also we had to adjust her idle a bit. it was set too low. I still pump her though. The idle adjustment did not help that.
Okay guys.....fire away at my response.
The Baja has a Holley carb on it. What I do on those cool morning or evenings is pump the throttle a few times before I start her. Feed her! She wants fuel. She ALWAYS fires up when I do that. Then I let her run a little before I back her off the trailer.
Now I am sure the men who dominate this forum will tell you I am wrong, but that seems to work for me.
I have always been afraid of her back firing so I am super careful.
Also we had to adjust her idle a bit. it was set too low. I still pump her though. The idle adjustment did not help that.
Okay guys.....fire away at my response.
#4
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Cowgirl, you are NOT wrong. Thats always the way I started it too. A couple of pumps of the throttle and then feather it a little when it fires up. Since it has no choke, it needs a lot of fuel on the initial start up. My Pantera has no choke either and starts almost the same way.
As far as the idle speed, I had to adjust it half turn every once in a while depending on the air temp and humidity. Just make sure you set it after the its warmed up all the way.
Try any new props yet?????
As far as the idle speed, I had to adjust it half turn every once in a while depending on the air temp and humidity. Just make sure you set it after the its warmed up all the way.
Try any new props yet?????
#5
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OMG!!! I answered right! YAHOO!!!!
Hey I am really getting this boating figured out. Not to mention the motor!!!
I feel like I want to be a gear head!
Okay who needs a mechanic? HA!
Hey I am really getting this boating figured out. Not to mention the motor!!!
I feel like I want to be a gear head!
Okay who needs a mechanic? HA!
![Big Grin](/forums/images/smilies/biggrin.gif)