I need some advice on an intermittent vibration. I have a stock '86 hardtop except for K&N filter, Thorley Headers and 2" cat back exhaust. All other equipment is orginal except for stock size tires. On a few occasions I had a vibrations which could not be felt through the steering but was a combination of sound and feeling. This happens after driving at hiway speeds and slowing down to below 40. Any help would be apprecated. Thanks
might want to check out the universal joints in the driveshaft. just had mine replaced on my 89 sidekick. i got a vibration at high speed when 'windmilling' the engine. that is, not accelerating or decelerating. i guess with no load the loose joints let the shaft flop around under there. are your front hubs locked? if so, might be something up front.
First of all do you have locking hubs? or is it a part time system? your front drive shaft can cause a vibration and a kinda rattly grumble if it is a part time system. The splines on the drive shafts get a little loose and the sounds and vibration start . Check your splines by grabbing the shaft in the center and and give them a shake if you notice excessive movement then that is the problem. You can also check the wheel brgs. they are another problem area .
In answer to your question, the vehicle is a '86 Samurai with part time 4wd and locking hubs. The vibration seems to be independent of whether I have the hubs locked or not. The front end seems tight and the wheels are balanced. I have a feeling it is one or more of the U joints. Does anybody have a recommendation for a high quality greasable U joint for the Samurai. Since I live about 60 miles south of Trail Tough, I may stop in there for a diagnosis. The advise of the list so far has been much appreciated. Thanks
just for reference, my u joints were about 22 bucks cdn each, at canadian tire, a big box type of store up here. they were 80 each at the local zuk dealer. the cheap ones are also greaseable. and after 11 years on the first set, i know i'll never do that again.
I had a strange vibration that I DID NOT feel through the steering wheel, but was coming from the floor area....and it only happened at low speeds on the highway and when I initially accelerated. As it turns out it was the ehaust system (2" exhaust system with Thorley Headers - like you have) was hitting the floor boards. The exhaust system was a bolt on - but quickly started rusting and I replaced it with a custom bent 2-1/4" pipe and Flowmaster muffler and now all is well. I do not know if you have the same problem, but check the clearance between your exhaust system and the floor boards / frame.
I believe I may have narrowed down what was causing the sound/vibration on my '86 Samurai. Yesterday I was running some steep trails and I noticed my back tire were spinning out even though I had the transfere case lever in 4wd high and the dash light was on. So I shifted into 4wd low and my back tire continuted to spin but the front did not move. Anybody got any insight into what the problem could be? Since I am not mechanic and I live within 60 minutes of Medford, OR, I guess it is time to take the Samurai into Brent at Trail Tough to have a real suzuki mechanic look at it.