Anything I should do while the engine is removed?

Grovian

Grovian

New Member
Joined
Apr 22, 2019
Messages
13
Location
Alberta, Canada
Well, Thought it was a lifter/cam issue. I was wrong! But on that note i get to rebuild the old tired 4.0 earlier then planned!

So once i have the 4.0L removed, is there anything i should look at doing while i have all that room to work with?
 
Yup the clutch was in the plan as well haha

As for the LS, i would love to, but the price difference is more then the misses will allow haha
 
Install the 4.2 crank and rods, shave the block about .020, install 27-28# pound mustang injectors, Crane 753901 cam and enjoy the 60 extra horsepower...poor mans stroker. More info can be found on the jeep strokers page.
 
  • Like
Reactions: matkal
astjp2 said:
Install the 4.2 crank and rods, shave the block about .020, install 27-28# pound mustang injectors, Crane 753901 cam and enjoy the 60 extra horsepower...poor mans stroker. More info can be found on the jeep strokers page.
Click to expand...

Okay might have to read a little more on that! Thx astjp2
 
It is a 258 crane and rods installed into the 4.0 block. You need to get the quench to .045-.055 which will stop preignition, I offset ground my crank .020 and then shaved the block deck height to .000. with my gasket, I got .045. quench. There is a guy selling performance heads on the stroker forum, you may consider that because the extra power, the head is one limiting factor. when I did mine on the YJ, it runs like a 3.6 does in the jk, it scoots right along. I also overbored the block .030, which gave me a square bore to stroke ratio. I REALLY like the performance. Tim
 
well haven't pulled the Engine yet, was talking with a couple mechanic friends and told me to check a couple things before i pull it right out, First is the Compression

Here that is

1 - 130 - 135
2 - 140 - 90 - 95 - 90 ??? not sure why this was 140 on the first one and 90 the rest
3 - 135 - 130
4 - 150 - 145
5 - 120 - 120
6 - 125 - 130

and figured i would check the rockers, springs and pushrods as well, all seem good.
adding a couple videos so you all can hear my pain.

 
Last edited:
That 90 on cylinder 2 isn't good. That would suggest you have a problem.

I almost wonder if that's rod knock?
 
Top Bottom
Back