Topic: Low power,bad mileage?

[Jimbob]

84 Yotie 22r 5spd,stock with 31s. Top speed is 70mph on the mat and no more. It got only 15mpg on a trip down the interstate,so probably gets a little worse around town. When you really get on it,it don't seem to have tons of power but don't surge or anything like that. Drove a truck very similar to it,little lift with 33s,everything else stock and it would bark the tires when speed shifting it and felt like it actually had some balls. So a truck with a lift and 2" taller,and 3" wider tires would smoke the other one   What could be causing this? Also what kind of fuel mileage would you be looking at getting in a stock Xtra cab '84 Yotie with 31s? Thanks for any help!

[Tice]

That sounds like my problem, no power and crappy mileage. How many miles are on it? Mine has like 260,000, and it burns a lot of oil so I think my problem is it's just worn out and old. I'm runnin' 36's with 5.29's and I'm lucky to hit 60 on a flat road and forget about inclines!!!   My freind is runnin' 39.5's and 5.29's and he can smoke me, he has a rebuilt 22re with a cam and header. So if it doesn't have alot of miles I'd say check your timing and plugs and such. I've messed with mine alot and nothing seems to help. Thankfully the only time I really drive it is when we are going wheelling.

[79coyotefrg]

jimbob,  if it has 200,000+ miles you need a rebuild, have it bored oversized and run a performance cam,  dont waste your money on a "rv cam"  some new rod and main bearings have the valves reseated,  and your carb checked,  or rebuilt  and you'll be running down the interstate passing everybody

look at my specs in my signature,  i've broken my speedo cable twice because it only goes to 80mph in my 79,  but i am running a 20/22R hybrid with full race cam and weber carb

[Jimbob [OP]]

From what I understand the truck has 179k(somewhere close to that) but the motor has either been rebuilt or had a lot of work done to it. It looks clean as a dang pin under the hood,the front of the motor has definately had some work because you can see some RTV seal that squeezed out a few places. Might just need a real good tune-up and timing checked. Haven't looked at the carb though. I'm looking at this truck,my buddy owns it and about got him talked into selling it to me     It runs like a champ out on the road but 70 is all she'll push,cept downhill with a tail wind

What kind of mileage should the truck be pushing saying with somewhat newer motor work and just been basicly took care of and pretty much stock. Looking into starting to college and would love to have this truck to drive back and forth and me and another buddy split the gas bill. Maybe a little suspension work and some 33s would come around after I got any bugs worked out

[motorider228]

hey i think as coyotefrg said rebuilding your carb would help a good amount with power also heres a link to other peoples gas mileage so you can compare yours to theirs. http://board.marlincrawler.com/index.php?topic=2682.0

[fellowsped]

basically if you think the motor has had a rebuild start checking things like plug, plugwires, coil, airfilture, and things like that. also check your carb it just might need to be rebuilt. try running a little carb cleaner through it or something if you can' afford to rebuild it right now.

[h0nke]

ive got a similar problem but ive got 380k on mine. i put some new plugs/wires and it made a little difference in 2nd gear. im gonna swap engines soon and roast the hell out of the tires!