Challenger 1800 Bad Engine

Note: This site contains eBay affiliate links for which SeaDooForum.com may be compensated
Status
Not open for further replies.

nbrennan86

New Member
Hi guys new to the forum. My names Nate. I’ve got a 1998 Challenger 1800 with 787’s in it. The port motor is hard starting but runs. I did a compression test at the end of last year and found 175psi on 3 and 55psi on the port motor rear cylinder. My brother and I just got around to pulling the top of the motor apart yesterday. I’ll attach pictures. We found the piston has a large indent in it where it looks like it burned up in the center? And a small piece of it missing where the ring is visible along with it worn away on the intake/carb side a little bit. The other piston looks pretty good to me. So here I am wondering if we need to buy a reman engine or if we can just replace the piston and rings? I’m mechanically inclined been working on cars for 15 years but this is my first tear down on a two stroke Period the jog and cylinder walls seem to be in very good shape Period how would I know if I needed the block rebuilt? Where would I look for that piece of piston? As I said the engine still turns over and actually ran!? So we were thinking about just doing a top and rebuild unless someone has some insight they can give me. Thanks in advance for your time and thanks for excepting me into the forum.
 

Attachments

  • 2C817845-BDCF-4FB8-AB53-1C7DC57112A2.jpeg
    2C817845-BDCF-4FB8-AB53-1C7DC57112A2.jpeg
    4.9 MB · Views: 16
  • 443B3977-25D2-4ADB-AFE0-4E038C5AEA92.jpeg
    443B3977-25D2-4ADB-AFE0-4E038C5AEA92.jpeg
    4.9 MB · Views: 16
Status
Not open for further replies.
Back
Top