4.2L Harmonic Ballancer? Trying to find the correct one??

[tom keyes]

I have a 4.2L that I swapped for a new engine. The old Harmonic Ballancer was worn out. The old engine had the Serpentine Belt setup installed, but you can no longer find anything listed as usable for our 4.2L engines? Are the 4.0L engines the same as the 4.2L ?

Thanks for any info.
Tom

 

[spankrjs]

No.

I installed a 4.2 balancer on a 4.0, been running it for around 25,000+ miles, not "ideal".

The "crank snout" stick out is different 4.2 vs 4.0.

Post #1412 shows what I ran into installing a 4.2 damper on a 4.0:

Another Scrambler Purchase/Road Trip - UPDATE- BODY ON FRAME AGAIN

I have a good running 258 out of an 84 that I can bring to nationals! Parking lot swap :crazy: you supply the adult beverage :cheers:

www.cj-8.com

Here is a 4.2/serpentine balancer one eBay, new:

4.2 258 AMC Jeep New Harmonic Balancer serpentine Belt | eBay

AMC JEEP 1981-90 WITH FLAT BELT. Manufactured to exacting standards. SERPENTINE BELT.

www.ebay.com