Hi guys,
I posted a few days ago about a compression issue on a 2001 TRX400EX.
I removed the cylinder and piston tonight, and think I found the problem. There is a large abrasion area, on part of the cylinder wall, as well as the matching area on the piston. The rings appear to be worn down in this area as well.
I suspect the rod may also have issues. Before I removed the piston, I noticed that is was not freely pivoting on the wrist pin, it was rather stiff (was also a pain in the ass getting the wrist pin out). I can't visually tell if the rod is straight, bent, twisted, etc. There is some discoloration in the rod, but I'm not sure if that is normal.
As it is right now, I know that I'd be in at least a piston & sleeve to get this fixed. If the rod is shot, well there another couple hundred bucks.
I tried adding this to my original thread, but it did not appear to post. I will try and post the pictures in a reply.
Would appreciate any input!
Thanks,
Casey
I posted a few days ago about a compression issue on a 2001 TRX400EX.
I removed the cylinder and piston tonight, and think I found the problem. There is a large abrasion area, on part of the cylinder wall, as well as the matching area on the piston. The rings appear to be worn down in this area as well.
I suspect the rod may also have issues. Before I removed the piston, I noticed that is was not freely pivoting on the wrist pin, it was rather stiff (was also a pain in the ass getting the wrist pin out). I can't visually tell if the rod is straight, bent, twisted, etc. There is some discoloration in the rod, but I'm not sure if that is normal.
As it is right now, I know that I'd be in at least a piston & sleeve to get this fixed. If the rod is shot, well there another couple hundred bucks.
I tried adding this to my original thread, but it did not appear to post. I will try and post the pictures in a reply.
Would appreciate any input!
Thanks,
Casey