Search the Community
Showing results for tags 'flexplate'.
Found 3 results
Hey all, i'm the proud new owner of this '89 MJ. It came with some issues as most older jeeps do. First order of business, clean the throttle body and iac. Trying to eliminate the vacuum leak, which is massive. Kicking out a loud whoosh when i step on the gas pedal, limiting my top speed to 35 mph. PO installed an electric fan to help with overheating, seems to work well, keeping temps at 220 F if i can trust the thermostat. So i'll be under the hood for a while this week. The forum articles on vacuum leaks are helpful. Also i'll be looking for a new flexplate, mine is cracked. Any advice/info on sourcing a new one will be appreciated!
Hey guys, new member here! If this has already been answered somewhere then I apologize, I have not been able to find it! So I’m trying to figure out if the flexplate follows the engine year or the transmission year. I’ve got a ’91 MJ, 4.0, auto, 2wd, column shift, short bed, etc. I recently grenaded a wheel bearing and ruined a spindle, so decided to go ahead and do a 4wheel swap. I bought an almost exact 1990 Comanche but 4x4 and worse body to part out. In doing some research I noticed flexplates are listed by ’87-’90 then ’91-’00. Both seem to have the same specs (164 teeth, 13.83” OD, 12-14 pitch) but have two different part numbers, different weights, and two very different prices. So if I’m using the 1990 transmission/transfer case but keep the 1991 engine, which flexplate do I need to use?? Thank you in advance!
So, stated driving the jeep a bit more. Started to hear knocking, like rod knock. Sucked, cause its a new stroker with less then ~500mi. Some research showed a common mis diagnosis of rod knock turns out to be cracked flex plate. So, I removed inspection plate on the transmission, and used a "snake camera" attached to my cell to look at the plate. And sure enough, there is a fresh crack. From center going to a hole. And some other spider cracks. This good news, as its not the engine. Bad news, though, cause the damn transmission was just installed 3 weeks ago. I always use failure as an opportunity to upgrade. I can't find any performance flex-plates for the Jeep AW4, like billet. Anyone ever see any performance ones? Image Not Found Image Not Found