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#1063624 - 09/24/19 01:10 PM Fuel System  
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Witness86SS Offline
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Hatfield, PA
I broke down yesterday. Engine bogged down when i hit a hill. Couldn't get it restarted. I rolled back down the hill and turned the car the other way and it still wouldn't start. I had to get it flatbedded home and again it still did not start.

Started this morning. So that's going to make it tough to find the part that wasn't working.


Is there 1 or 2 fuel pumps on the monte? I have the mechanical pump on the corner of the engine block. Is there another in the gas tank?

I am running the CCC quad, does anyone know what size fittings i need for a fuel pressure gauge?

Thanks,


Justin
1986 Black SS
Upgrades: 350 L05 - Hooker Longtubes - FlowMaster True Dual 2.5" - Electric Cutouts - Electric Fans - Transcooler - Proforged Steering Kit - Astro Shaft - AR62 OUTLAW II Wheels - Energy Suspension Bushings - Bitflipper Chip - 87 ECM - Moog Springs and Ball Joints - Bilstein Shocks - Bucket Seats
#1063625 - 09/24/19 01:21 PM Re: Fuel System [Re: Witness86SS]  
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SSLance Offline
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SSLance  Offline
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Peoria, AZ
One manual pump on the engine if its stock. How much fuel was on tank? First thing I would check is fuel filter in carb. Might also check k ignition module in distributor.


Lance
1985 Monte Carlo SS Street Car
#1063626 - 09/24/19 02:05 PM Re: Fuel System [Re: Witness86SS]  
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Witness86SS Offline
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Hatfield, PA
Thanks Lance, half a tank. It's been 3 years since I changed that filter so it's getting checked/replaced first.
My other suspects are:
the kink/twist in the fuel line right at the filter. It's always been there, but I might have made it worse when i put in my alternator.
the fuel bowl float, i banged a screwdriver handle all over the carb trying to loosen anything that was stuck, no luck
the pump, also whacked this a few times with the screwdriver

It sputtered on me on saturday night on flat ground. I opened up the gas cap when I got home and didn't get a rush of air. So i think the tank is breathing well.

Also considering vapor lock. It was 90 out, everything was was very hot under the hood


Justin
1986 Black SS
Upgrades: 350 L05 - Hooker Longtubes - FlowMaster True Dual 2.5" - Electric Cutouts - Electric Fans - Transcooler - Proforged Steering Kit - Astro Shaft - AR62 OUTLAW II Wheels - Energy Suspension Bushings - Bitflipper Chip - 87 ECM - Moog Springs and Ball Joints - Bilstein Shocks - Bucket Seats
#1063628 - 09/25/19 01:05 AM Re: Fuel System [Re: Witness86SS]  
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86ttop Offline
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Brooksville, Fl
Ignition coil, started when the coil cooled off! Did you check to see if the accelerator pump shot a squirt of gas in the carb??!!


Leo Paugh
It's not an attitude, it's just the way I am.
POW*MIA
You are not forgotten
If things improve with age, I must be approaching magnificent. thumbs
#1063630 - 09/25/19 01:57 PM Re: Fuel System [Re: Witness86SS]  
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Witness86SS Offline
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Hatfield, PA
I got stuck in a really bad place in rush hour traffic so troubleshooting was minimal. I actually tried to do that, but couldn't see well enough. I thought I smelled gas when i did that though. I should have checked when i got home.

Do you think a new 160 amp alternator might be pushing too much current into an old coil?


Justin
1986 Black SS
Upgrades: 350 L05 - Hooker Longtubes - FlowMaster True Dual 2.5" - Electric Cutouts - Electric Fans - Transcooler - Proforged Steering Kit - Astro Shaft - AR62 OUTLAW II Wheels - Energy Suspension Bushings - Bitflipper Chip - 87 ECM - Moog Springs and Ball Joints - Bilstein Shocks - Bucket Seats
#1063631 - 09/25/19 05:09 PM Re: Fuel System [Re: Witness86SS]  
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Witness86SS Offline
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Hatfield, PA
New suspect. The bushing between the coil and the cap. The stock form of that would overheat with too much resistance for 160 amps


Justin
1986 Black SS
Upgrades: 350 L05 - Hooker Longtubes - FlowMaster True Dual 2.5" - Electric Cutouts - Electric Fans - Transcooler - Proforged Steering Kit - Astro Shaft - AR62 OUTLAW II Wheels - Energy Suspension Bushings - Bitflipper Chip - 87 ECM - Moog Springs and Ball Joints - Bilstein Shocks - Bucket Seats
#1063634 - 09/25/19 11:44 PM Re: Fuel System [Re: Witness86SS]  
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mmc427ss Online content
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Pottstown, Pa
The alt would have nothing to do with the cap problem as long as the alt voltage output was within normal range 13.5 to 14.5 give or take. It's the amp draw that cooks parts. An HEI only pulls 7 or so amps.

Got it fixed yet?
Bob

#1063641 - 09/26/19 01:41 PM Re: Fuel System [Re: Witness86SS]  
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Witness86SS Offline
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Hatfield, PA
Hopefully this weekend. It's tough to find the time during the week. I ordered a DUI coil and zero resistance rotor bushing. Looking at replacing the fuel pump, the pushrod and line to the carb too. Got any advice on a fuel pump that isn't pricey?
I'm not very knowledgeable about the number of valves and line sizes, min and max PSI etc..

I'm throwing parts at it, but these have all been on my list to replace.


Justin
1986 Black SS
Upgrades: 350 L05 - Hooker Longtubes - FlowMaster True Dual 2.5" - Electric Cutouts - Electric Fans - Transcooler - Proforged Steering Kit - Astro Shaft - AR62 OUTLAW II Wheels - Energy Suspension Bushings - Bitflipper Chip - 87 ECM - Moog Springs and Ball Joints - Bilstein Shocks - Bucket Seats
#1063642 - 09/27/19 01:06 AM Re: Fuel System [Re: Witness86SS]  
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86ttop Offline
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Brooksville, Fl
the push rod is indestructible, no need to replace it. Do one thing at a time, that way you'll know what actually fixed the problem and good luck!!


Leo Paugh
It's not an attitude, it's just the way I am.
POW*MIA
You are not forgotten
If things improve with age, I must be approaching magnificent. thumbs
#1063717 - 10/06/19 01:46 PM Re: Fuel System [Re: Witness86SS]  
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Witness86SS Offline
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Hatfield, PA
Finally replaced the cap and coil. I don't want to get ahead of myself, but it might have eliminated the lugging i get at low rpm in the 30 to 45 mph range. So fingers crossed that I don't get stranded again


Justin
1986 Black SS
Upgrades: 350 L05 - Hooker Longtubes - FlowMaster True Dual 2.5" - Electric Cutouts - Electric Fans - Transcooler - Proforged Steering Kit - Astro Shaft - AR62 OUTLAW II Wheels - Energy Suspension Bushings - Bitflipper Chip - 87 ECM - Moog Springs and Ball Joints - Bilstein Shocks - Bucket Seats
#1063720 - 10/07/19 12:56 AM Re: Fuel System [Re: Witness86SS]  
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86ttop Offline
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86ttop  Offline
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Brooksville, Fl
thumbs


Leo Paugh
It's not an attitude, it's just the way I am.
POW*MIA
You are not forgotten
If things improve with age, I must be approaching magnificent. thumbs
#1063887 - 10/24/19 07:10 PM Re: Fuel System [Re: Witness86SS]  
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Witness86SS Offline
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Hatfield, PA
And stranded again. This time in a much safer place. I was able to check for fuel and I think that's the real issue here.
The coil was not hot.
I was able to get a light on the carb and i saw no fuel when i pressed the plunger. I removed the fuel line and a little bit dribbled out of the filter but nothing out of the line.

Beat the crap out of the fuel pump with a wrench and got it going with about 15 seconds of cranking.

So any recommendations on fuel pumps? I was looking into them before and did not know what I was looking at when it came to multiple valves etc..


Justin
1986 Black SS
Upgrades: 350 L05 - Hooker Longtubes - FlowMaster True Dual 2.5" - Electric Cutouts - Electric Fans - Transcooler - Proforged Steering Kit - Astro Shaft - AR62 OUTLAW II Wheels - Energy Suspension Bushings - Bitflipper Chip - 87 ECM - Moog Springs and Ball Joints - Bilstein Shocks - Bucket Seats
#1063890 - 10/24/19 10:42 PM Re: Fuel System [Re: Witness86SS]  
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Witness86SS Offline
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Hatfield, PA
Got it home in 3 10 minute drives with half hour cool offs, beatups of the pump and cold seltzer poured on it. My problems with the knock sound are from the fuel pump. I was getting the knocking at 1.5 to 2k rpm on the second leg of the trip and it was slogging.
"Thankfully" it happened right in front of Pep-Boys. Unfortunately all they could do was order me a fuel pump. How does an autoparts store not have something that was so prevalent?


Justin
1986 Black SS
Upgrades: 350 L05 - Hooker Longtubes - FlowMaster True Dual 2.5" - Electric Cutouts - Electric Fans - Transcooler - Proforged Steering Kit - Astro Shaft - AR62 OUTLAW II Wheels - Energy Suspension Bushings - Bitflipper Chip - 87 ECM - Moog Springs and Ball Joints - Bilstein Shocks - Bucket Seats
#1063892 - 10/25/19 01:44 AM Re: Fuel System [Re: Witness86SS]  
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86ttop Offline
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86ttop  Offline
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Brooksville, Fl
old technology!!
and JMHO< Pep Boys isn't an Auto Parts store anyway!!


Leo Paugh
It's not an attitude, it's just the way I am.
POW*MIA
You are not forgotten
If things improve with age, I must be approaching magnificent. thumbs
#1063895 - 10/25/19 04:36 AM Re: Fuel System [Re: Witness86SS]  
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mmc427ss Online content
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Pottstown, Pa
Carbs have been gone for several decades now, along with mechanical pumps. So has inventory.
Bob

#1063901 - 10/25/19 03:40 PM Re: Fuel System [Re: Witness86SS]  
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T5montecarlo Offline
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Lederach, PA
Rockauto has several, including AC Delco.

Marc

#1063909 - 10/26/19 05:42 AM Re: Fuel System [Re: Witness86SS]  
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Buick Runner Offline
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Dharma station 1 the Hydra
The stock mechancial fuel pump on these cars operates like a return style fuel system. It recirculates fuel to the pump and back to the tank. It only bleeds fuel off to the carb when it demands fuel.


SBC powered 1987 Regal with TES headers, ZZ4 intake, ZZ4 PROM chip, mini starter, THM2004R, 2500 stall converter, 2040 cam, CCC system, and 3.73 posi rear.

2008 ex NPS P71 Crown Victoria, cop motor, cop shocks, cop brakes.

Never argue with an idiot.
They will just drag you down to their level and beat you with experience.
#1063911 - 10/26/19 03:04 PM Re: Fuel System [Re: Witness86SS]  
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SSLance Offline
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Peoria, AZ
We have a Pep Boys here that is awesome. It's like an old school auto parts store with real parts guys behind the counter.


Lance
1985 Monte Carlo SS Street Car
#1063912 - 10/26/19 11:40 PM Re: Fuel System [Re: Witness86SS]  
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88ss408 Offline
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miramichi, NB
I get the Carter muscle car pump. For a cheap replacement. I use to run the Carter street and strip pumps. But I can't get them anymore so use the Edelbrock performer pumps ( same pumps anyways)


1988 monte carlo ss 408 sbc
-----------------------------------------------------
1984 monte carlo cs 400 sbc
#1063932 - 10/30/19 10:20 PM Re: Fuel System [Re: Witness86SS]  
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Witness86SS Offline
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Hatfield, PA
I got the AC Delco pump. I have no experience with fuel pumps. The arm moves up and down, but the spring does not force the arm back up. Is that right?


Justin
1986 Black SS
Upgrades: 350 L05 - Hooker Longtubes - FlowMaster True Dual 2.5" - Electric Cutouts - Electric Fans - Transcooler - Proforged Steering Kit - Astro Shaft - AR62 OUTLAW II Wheels - Energy Suspension Bushings - Bitflipper Chip - 87 ECM - Moog Springs and Ball Joints - Bilstein Shocks - Bucket Seats
#1063933 - 10/31/19 12:02 AM Re: Fuel System [Re: Witness86SS]  
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T5montecarlo Offline
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Lederach, PA
Justin, are you describing your old pump or the new pump?

The arm should be up. A heavy spring makes it very difficult to push it down.

Marc

#1063934 - 10/31/19 01:26 AM Re: Fuel System [Re: Witness86SS]  
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Witness86SS Offline
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Hatfield, PA
thanks Marc,
New pump, like i said no experience with them. You were 100% right. Lever moves and comes back up, but it's very hard to push it down.


Justin
1986 Black SS
Upgrades: 350 L05 - Hooker Longtubes - FlowMaster True Dual 2.5" - Electric Cutouts - Electric Fans - Transcooler - Proforged Steering Kit - Astro Shaft - AR62 OUTLAW II Wheels - Energy Suspension Bushings - Bitflipper Chip - 87 ECM - Moog Springs and Ball Joints - Bilstein Shocks - Bucket Seats
#1063936 - 10/31/19 02:55 AM Re: Fuel System [Re: Witness86SS]  
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84ss355*4spd Offline
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Edmonton,AB,Canada
Should be hard to pish down . Long shot but maybe the fuel pump lobe on the cam is toasted just a thought .if mew pump didnt solve the issue


84ss current restoration
86 ss gone
85 ss new
85 z28 tpi
[Linked Image][Linked Image][Linked Image]
#1063938 - 10/31/19 03:44 AM Re: Fuel System [Re: Witness86SS]  
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86ttop Offline
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Brooksville, Fl
are you sure that you got the fuel pump pushrod in the pump arm??


Leo Paugh
It's not an attitude, it's just the way I am.
POW*MIA
You are not forgotten
If things improve with age, I must be approaching magnificent. thumbs
#1063941 - 10/31/19 01:24 PM Re: Fuel System [Re: Witness86SS]  
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Witness86SS Offline
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Hatfield, PA
Sorry if I wasn't clear, I was just inspecting my new part before I pack it with grease and install it. Hoping i can find time to get it done before saturday morning so I can go to Vargo


Justin
1986 Black SS
Upgrades: 350 L05 - Hooker Longtubes - FlowMaster True Dual 2.5" - Electric Cutouts - Electric Fans - Transcooler - Proforged Steering Kit - Astro Shaft - AR62 OUTLAW II Wheels - Energy Suspension Bushings - Bitflipper Chip - 87 ECM - Moog Springs and Ball Joints - Bilstein Shocks - Bucket Seats
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