Carburator Help

[coachmccann]

I have an 83 CJ-7. Anytime I am wheelin' on an incline, the carb will flood and the jeep stalls.

1. Are there any fixes fo the current carb?
2. If not, can you recommend a replacement?
3. Would an EFI conversion be a better option?

Any thoughts or recommendations would be appreciated. Thanks!

[WalterD]

I have a 79 CJ7 with a carb. Anytime I ask that question it's generally the same response. Go fuel injection.
Good luck

[TRobertsRN]

I would go propane.

Not sure it that would be OK with your emissions requirements. There are kits that are certified for emissions but very expensive.

Got Propane dot com has straight propane and dual kits to have gas or propane. Their propane kits are not approved for emissions. I would think that would pass your emissions and give you propane off road that would never stall.


Tom

[rob79CJ7]

Hi guys, my name is Rob im new to the site, but not jeeps. The carbs on CJs are infamous for flooding on steep hills, there are a couple of options that are fairly cheap that come to mind, you can replace the carburator with a motorcraft model 2100 and HEI or just HEI. Both options will give you great improvements, good luck.

[Sandollar]

Hi guys, my name is Rob im new to the site, but not jeeps. The carbs on CJs are infamous for flooding on steep hills, there are a couple of options that are fairly cheap that come to mind, you can replace the carburator with a motorcraft model 2100 and HEI or just HEI. Both options will give you great improvements, good luck.

Rob, I have an 82 CJ and a motorcraft 2100. It also stalls on steeper hills sometimes. I have heard something about a float spring solving his. Can you help on this?

[Billy 4 hp]

Rob, I have an 82 CJ and a motorcraft 2100. It also stalls on steeper hills sometimes. I have heard something about a float spring solving his. Can you help on this?

The float spring attatches to the top of the float and presses against the carb casting, it basically acts as a shock absorber for the float to prevent the fuel level from rising so high in the float bowl and causing the flooding situation when the vehicle is bouncing along or on extreme angles....

I had Bob Ream (B&R Automotive) do a Q-Jet for me with this setup and I could practically run the vehicle on it's side...

[Jeepnut]

My MC2100 is awesome. I have the spring loaded float, plus a fuel regulator. With both of these together I can handle most all inclines.

[coachmccann]

Thanks so much for all your input. Seems as though the EFI is a pretty pricey option and maybe you get what you pay for, but I think I may jump on the spring loaded motorcraft option. Sounds like a good alternative. Is the float an aftermarket product or is it merely an upgraded version of the motorcraft carb?

By the way, what is HEI?

Thanks again.

[Jeepnut]

My MC2100 came from a Jeep 304, it had the spring loaded float hinge already.

HEI = High Energy Ignition, Used on all GM vehicles from '75 - mid '90's(?) For a 4.2, an early HEI from a '75-'80 250 straight 6 chevy motor (found in novas, chevelles vans, and trucks) can easily be converted to run in a Jeep 258/4.2. (search web). This mod, combined with a MC2100 (or any other non-feedback carb) is a huge improvement over the Jeep carb/ignition.

[lazarus7]

Try this. Holley #7448 {269.95 Summit,Jeg's etc:] add part #HLY 6-513
Spring loaded needle and seat assembly [off road design].Carb should already have
float spring installed. Do the GM HEI conversion and like Billy4hp said you should
almost be able to drive it on it's side! By the way, the Holley is a 350 cfm 2 barrel
and will work well on your engine.