(FUEL) Mallory Issues: Part Deux
(FUEL) Mallory Issues: Part Deux
Alright, thanks to the suggestions from my first thread regarding this issue I was able to get the fuel pump mounted correctly (hopefully) and I installed the Mallory FPR as well. I actually got the thing to move! I drove it about 10 miles back to base and parked it in my barracks parking lot. Now of course there is a slew of other issues that have arisen now.
One - It stumbles and catches when I step on the accelerator more than half throttle. I am thinking this is related to the fact that I have not adjusted the FPR at all. I guess I need some type of PSI guage to see what pressure its running at. I am going to read over the instructions again but I didnt see anything the first time about what it is supposed to be set at.
Two - After I got everything installed and running I was sitting there looking at this little plastic bag that had a brass spacer looking thing in it. So I read through the FPR instructions one last time and apparently I have to put this in my fuel pumps bypass plug line or something. Maybe this is why I am stumbling?
Three - It backfires everytime I stop! AGH! Scared me the first time, thought I had blown my exhaust up. I talked to another first gen owner from around here about this and he said its normal? I dont like it though, any insight?
Four - Damn thing idles high, around 2k. Could this be throttle cable adjustment? I know nothing about this damn holley carburetor or how to adjust it. I also havent had a chance to adjust the float levels, I am sure that is not helping.
Any advice is appreciated.
For those that didnt catch my first thread.
1985 base model. 12a, racing beat full intake,and full exhaust.
One - It stumbles and catches when I step on the accelerator more than half throttle. I am thinking this is related to the fact that I have not adjusted the FPR at all. I guess I need some type of PSI guage to see what pressure its running at. I am going to read over the instructions again but I didnt see anything the first time about what it is supposed to be set at.
Two - After I got everything installed and running I was sitting there looking at this little plastic bag that had a brass spacer looking thing in it. So I read through the FPR instructions one last time and apparently I have to put this in my fuel pumps bypass plug line or something. Maybe this is why I am stumbling?
Three - It backfires everytime I stop! AGH! Scared me the first time, thought I had blown my exhaust up. I talked to another first gen owner from around here about this and he said its normal? I dont like it though, any insight?
Four - Damn thing idles high, around 2k. Could this be throttle cable adjustment? I know nothing about this damn holley carburetor or how to adjust it. I also havent had a chance to adjust the float levels, I am sure that is not helping.
Any advice is appreciated.
For those that didnt catch my first thread.
1985 base model. 12a, racing beat full intake,and full exhaust.
Joined: May 2002
Posts: 5,972
Likes: 37
From: Ottawa, Soviet Canuckistan
You definitely need to get a gauge and set your fuel pressure, then see what problems are left after that.
If you think the throttle cable adjustment is causing issues, then just temporarily remove the throttle cable, tap the linkage with your finger to make sure it's "shut" and see what that does.
But at least now the pump sounds like it's working, just get your pressure in the right spot and you'll be good.
Jon
If you think the throttle cable adjustment is causing issues, then just temporarily remove the throttle cable, tap the linkage with your finger to make sure it's "shut" and see what that does.
But at least now the pump sounds like it's working, just get your pressure in the right spot and you'll be good.
Jon
I will try that with the throttle cable, thanks for the tip.
One more thing, Is the fuel pump supposed to be noisy? Since I have it mounted to the underside of the drivers side storage bin I can hear it whining at low speeds. Also it gets rather warm, not nearly as hot as it was before where I couldnt even touch it without burning myself. I can hold my hand on it but it is definetely warm.
One more thing, Is the fuel pump supposed to be noisy? Since I have it mounted to the underside of the drivers side storage bin I can hear it whining at low speeds. Also it gets rather warm, not nearly as hot as it was before where I couldnt even touch it without burning myself. I can hold my hand on it but it is definetely warm.
Joined: May 2002
Posts: 5,972
Likes: 37
From: Ottawa, Soviet Canuckistan
I can't hear mine at idle unless I'm rummaging around in the bin behind my seat with the car on, or squatting down beside the car. MAYBE sometimes at night, that's about it.
I've got the Mallory Comp 70 though, I don't know if yours would make more noise, I don't see why it should.
Yeah the pump gets a little warm, but nothing big. Mine does the same.
What do you have for exhaust? Maybe I only can't hear mine because I have the RB long primary exhaust system
Jon
I've got the Mallory Comp 70 though, I don't know if yours would make more noise, I don't see why it should.
Yeah the pump gets a little warm, but nothing big. Mine does the same.
What do you have for exhaust? Maybe I only can't hear mine because I have the RB long primary exhaust system
Jon




