In the picture that I attached earlier, the hand points to a weight on the flywheel that they recommend grinding off. Does anyone know if that weight is for a manual transmission or automatic? And why would it need to be ground off?

 

Flywheels are for manuals flex plates on autos.

 

The way a engine is balanced is internal or external,Internal has no weights on the flywheel/flexplate while the external does.

 

My dream swap for an 84-86 XJ is a Buick 3800. RWD format can be found in 4th gen Camaro/Firebird. Why? Fantastic performance/power especially with some tweaks. Great MPG. Tons of them made, tons of OEM and aftermarket support. Last forever. There is even a company that makes all aluminum 3880 blocks. That would be amazing to build from.

 

I now have a donor car: a 1994 Chevy Camaro. I originally wanted to pull as much as I could from the Camaro (engine with Injected setup, ECU, etc.), but I now think all of that would be a little bit beyond my comfort and possibly ability.. So I'm thinking that I might keep it carbed.

I've been back and forth about the transmission though. Lots of people I've read forums of who have done swaps have swapped in the AX15 tranny from the '96+ Dakotas. The problem I have with doing that, is that my XJ has an auto trans, not a manual. I'm not opposed to going manual (since I prefer them over auto transmissions), but I have no idea how to go about that, I haven't seen too many forums with details on that, and I want to keep my transplant as simple as possible.

That being said...what automatic transmissions have others put into their carbed XJs that can handle the 3.4L power?

 

Why can't you continue to use your original tranny?

 

he prefers to have a manual

 

 

I was under the impression that the original tranny wouldn't live long under more power stress...but after doing research (I enjoy research, although sometimes finding the right Q to ask is challenging), that same tranny was used in later Jeeps with the 4.0L...and the power difference is only about 30HP between the 3.4L and the 4.0L...so I don't see why I couldn't use my original tranny...although I would probably want a transmission place take a look at it and go through it thoroughly. Shifting is rough, and sometimes it hangs in one gear for a while before shifting..

But I think I will try to keep my original tranny, if possible. I'll be scheduling an appointment with a local tranny place to get my Jeep (I named him Gary) into the Dr. for a checkup. Hopefully it doesn't need an overhaul or anything, but only needs a little help..

But another Q I have involve other fuel delivery systems. Going with fuel injection systems is probably beyond my budget, skills, and timeframe since that would need an ECU, wiring, etc.... But I have read some about Throttle Body Injection Systems, which sound like a step up from Carbed systems for throttle response and dependability...is that true?

Do TBI systems need electricity, an ECU, or anything extra beyond what a carbed system needs? I can figure out how best to run power to a simple system, but if it needs more than a couple wires to help it, then I'll just stick with a carbed system and learn to live with it until I can go the fuel injection route..

So any help/suggestions with the TBI systems would be greatly appreciated. I'll try to touch base here more often..I've recently gotten a more hectic schedule, so I've been back here sporadically. But I will try to improve.

Thanks for your help!