Hey Guys...I'm new to the forum but I really need some tech help here. Anyway, my '86 runner with a 22re & a 5 speed has NO power & gets miserable gas mileage. After running many tanks through I am still getting around 12.5 mpg average. The truck also has ZERO power. It is only running on 31's so it really shouldn't be this slow. Could this be that the timing chain is off a tooth on the gears? One person I asked said that is the problem & another says that these trucks won't run at all when the timing chain is off a tooth on the gear. What do you guys think & what tests should I run to pin the problem with this motor down? Thanks in advance.

 

try checking to see if the timing is correct.bring the #1 piston up on top dead center on the compression stroke. if the chain and dist. are correct the the timing mark on the front balancer will line up with the timing mark and the rotor will pointed at the #1 plug wire on the dist. cap. i bought a truck that had a new timing chain and the guy had stabbed the dist. wrong. it acted similar to yours. if the timing is off you need to correct the problem, it can damage your motor. hopefully it is not the timing chain installed wrong. i am assuming that you have not owned the truck long and are not sure of any recent repairs.

 

Thanks Swampfox. I haven't owned the truck long but the PO said he put on a water pump & a timing chain.