Carb'd 4.6 Questions

[SilverXJ]

At least you found the problem and it is an easy fix.

[Wombat Ranger]

Got it fixed and back together. then I caught the whole side of the engine on fire from all the raw fuel that has been spit out of the header yesterday and today. Scared the crap out of me. At least I am getting combustion though. Haven't gotten it to actually run yet though. Tomorrow. Thanks for your help Silver.

[SilverXJ]

. then I caught the whole side of the engine on fire

Its an Internal Combustion Engine, not an External Combustion Engine.

[Wombat Ranger]

Woohooo!!!

Jeep 4.6 stroker cam break in - YouTube

[SilverXJ]

Congrats. Sounds mean! What exhaust do you have, or none?

[sly-jeeper]

sounds kinda goofy like it's periodically missing or detonating...lol or your neighbors beating on metal garbage cans trying too be louder!

[Wombat Ranger]

It is just an open header right now that's why it sounds like a friggin dragster. APN header. Which by the way does not fit with the stock 4.2 intake without some ball-peen hammer adjustments.


I am sure it needs some fine tuning with the timing though.

[sly-jeeper]

its that popping or rattling sound kind of like a two stroke going peding da ding ding ding lol lmfao never thought i would use that to describe a jeep

[Wombat Ranger]

Part of that is the open header, part of it is that it is probably still a ways off on timing, and part of it is that the mic on a Samsung phone can't be that great can it?

[sly-jeeper]

im thinking more along the lines of maybe your phone mic. or the timing off ive ran and heard many open headers on jeeps and v8s its not that...does it actually pop like that when its running or is it just heard in the video?...maybe its my laptop lol

[Wombat Ranger]

it cracks and pops like everything else I have ever heard with open headers.


Drove it for the first time today. Just around the neighborhood, then when pulling out on to the road I gave it no more than 1/2 throttle and did this.




I am still laughing about it. I built this thing for torque but damn. My old 4.2 couldn't hurt my drivetrain if it tried! I know 3.07's and 33's don't do any favors for the pinion yoke but it is still funny.


Also, I noticed when I started it up that it doesn't want to stay running with the choke set, even when cold, so this carb must really be choking this engine down.

[sly-jeeper]

nice lol!

[DaemonForce]

Oh God...Please tell me that's your front yoke.
*looks at angled shock tower*
It's the rear yoke isn't it? Jesus...

[Wombat Ranger]

It's the rear. Not sure where you are going with that comment?

[DaemonForce]

You went from a tired 4.2L to a mild 4.6L stroker.
I'm jumping from an extremely anemic maybe 90HP carb'd 4.2L to a wild (Hopefully ~170HP) EFI'd 4.7L.

You managed to tear up the rear yoke in your Jeep. My Eagle also shares this history and I'm using an identical swap from a later Eagle's Model 35 with the 2.73 gearing.
For over a year I've been planning on switching to Dana 44 with 3.08 gears and then I see this gnarly mess.

I am so screwed! (´・ω・｀)