Calgary Jeep Association

4x4 Related Groups => Tech Talk => Topic started by: Bnine on May 25, 2016, 10:09:11 AM

Title: 4 year rod knock finally calls it quits
Post by: Bnine on May 25, 2016, 10:09:11 AM
The mild rod knock in the old YJ has finally gotten to the point of no return. Camped at Mclean this weekend the knock got worse and worse every time we went up top of the world. Finally I had to shut it down hoping I could still get it home.

Sure enough, the old beast made it all the way to my house with a violent knock and no oil pressure under 2000 rpm. The last time a blew a motor with a knock, the rod blew out the side of the block after about 5 minutes of knocking. The fact that this thing went 4 years with a knock really speaks to the durability of the old 4.0. Specially considering its had me on the pedal for the last few. haha

Motor swap coming up.

Thanks Kev for hooking me up with the donor.
Title: Re: 4 year rod knock finally calls it quits
Post by: Dingleberry on May 25, 2016, 10:13:25 AM
Ya it was sounding pretty gnarly on the trail! Thankfully the rod didn't come through the side of the block. I've had that happen before!
Title: Re: 4 year rod knock finally calls it quits
Post by: Bnine on May 25, 2016, 10:19:45 AM
Haha, yeah, me too. But just with chevy's...............

This thing has proven itself to be resilient enough to be worthy of a stroker build.
Title: Re: 4 year rod knock finally calls it quits
Post by: Vinman on May 25, 2016, 10:23:04 AM
Please tell you did or are planning on redlining it to see how long it takes to put a window or two in the block.

Could make it interesting to have a blow-up at the Show & Shine
Title: Re: 4 year rod knock finally calls it quits
Post by: raf2379 on May 25, 2016, 11:48:58 AM
Quote from: Vinman on May 25, 2016, 10:23:04 AM
Please tell you did or are planning on redlining it to see how long it takes to put a window or two in the block.

Could make it interesting to have a blow-up at the Show & Shine


you tube it lmao, go viral haha. i'll be your camera man Billy
Title: Re: 4 year rod knock finally calls it quits
Post by: Bnine on May 25, 2016, 12:38:11 PM
The thought crossed my mind, but I figured getting me all the way home with that hard of a knock earned that motor the right to a rebuild...lol
Title: Re: 4 year rod knock finally calls it quits
Post by: Vinman on May 25, 2016, 04:55:55 PM
Quote from: raf2379 on May 25, 2016, 11:48:58 AM
i'll be your camera man Billy

No, no, no, just mount a pair of Go-Pro's on either side of the rad pointing rearwards with a view directly down each side of the block and bet which side opens up first.
Title: Re: 4 year rod knock finally calls it quits
Post by: Dingleberry on May 25, 2016, 07:33:30 PM
Quote from: Vinman on May 25, 2016, 04:55:55 PM
No, no, no, just mount a pair of Go-Pro's on either side of the rad pointing rearwards with a view directly down each side of the block and bet which side opens up first.

Great idea!!!
Title: Re: 4 year rod knock finally calls it quits
Post by: fug on May 26, 2016, 07:41:17 AM
It definitely had a good run.  There is a video somewhere of me climbing an icy hill a couple years back with the throttle just pinned in about second gear.  It was knocking back then as well.  Tough as nails.
Title: Re: 4 year rod knock finally calls it quits
Post by: Bnine on May 26, 2016, 09:02:28 AM
Oh yeah, Im not paying you for this jeep now by the way. You sold me a truck with a blown motor!!!!!!!!!!!!!!

hahahaha
Title: Re: 4 year rod knock finally calls it quits
Post by: fug on May 26, 2016, 09:55:57 AM
Repo time!  Can you make sure the spare motor is easily accessible too  :) 8) 8) 8) :)
Title: Re: 4 year rod knock finally calls it quits
Post by: Bnine on May 26, 2016, 10:19:22 AM
And the two spare transmissions?

Hey, after you swap the motor maybe you can find me a third AX15 for when I buy it back again......hahaha