Engine Differences???
Is there any appreciable differences between NA engines from a 86-88 and 89-91? I am thinking about dropping a 90 NA into my 87. Are there computer differences? Would I need to change anything? Also, engine is from an automatic and going into a manual. I know I would need to change the flywheel and front counterweight and of course a pilot bearing. Anything else? Any advice would be greatly appreciated.
|
there are ALOT of little differences. you would need to screw around alot to get it to work. you are much beter off to find a 86-88 motor.
|
Is there any appreciable differences between NA engines from a 86-88 and 89-91? I am thinking about dropping a 90 NA into my 87. Are there computer differences? Would I need to change anything? Also, engine is from an automatic and going into a manual. I know I would need to change the flywheel and front counterweight and of course a pilot bearing. Anything else? Any advice would be greatly appreciated. No, no, that is all wrong. :( There are many differences. It can be made to work, but it really isnt worth the extra effort for a backyard mechanic. IT will also be very hard to pass an emissions test if you did so, as the 89+ block has no EGR. Basically you would a) keep the front counterweight and rear flywheel from an 89-91 nonturbo on the 89-91 block; the pilot bearing for all 2gens are the same, dunno who fed you that bs. You would change from the 86-88 motor you had and put onto the new 89 motor: front cover, OMP, intake, wiring harness, injectors, fuel rails, throttle body. Basically, your aim would be to have an 89 block and all 86-88 externals with exception of the rotating assembly, which must match the block. For instance, your 86-88 flywheel would not work on the 89-91 engine, or there would be balance/vibration/longevity issues. |
Thanks. Quite helpful! Where's the best place to get a complete rebuild kit and gasket set for the 87 motor?
|
I get all my parts from atkinsrotary.com. Theyre very nice and helpful, and their prices are great. I do not buy a "kit", just the parts I know I need/want to replace: gasket kit with coolant seals, apex seals, oil o-rings, oil thermo pellet.
Also note that it is common for at least one rotor and rotorhousing to be damaged in a blown apex seal motor, and require replacement in order to rebuild. You can get these used for $25-100 per piece. |
All times are GMT -5. The time now is 10:08 AM. |
© 2024 MH Sub I, LLC dba Internet Brands