1983 9.9 I just rebuilt, an issue

[bktheking]

Upon assembly I noticed the tiller was hard to turn, i know they are normally not easy to turn so they won't move by themselves but this thing is crazy hard to rotate, so bad that the tiller gears will jump. I had the timing plate and bearing off to inspect, nothing bent, plastic bearing still in tact. What under the flywheel can cause it to bind? This is with the flywheel off.

Or is it just normal?

 

[Rick.]

Re: 1983 9.9 I just rebuilt, an issue

Well it's not normal. Did you clean and grease all the parts before re-assembly? Take a look at the parts breakdown and make sure everything is in the right place. You could also disconnect the link to the mag. and see if it's stiff at the tiller handle or the mag. to help figure out where the problem lays. Best of luck. Rick.

 

[bktheking]

Re: 1983 9.9 I just rebuilt, an issue

Clean and grease? Clean yes but I read that the plastic bearing is not suppose to be greased according sschapter leeroy's ramblings.

 

[bktheking]

Re: 1983 9.9 I just rebuilt, an issue

According to Leeroy:

This support bearing puts tension on the inside of the timing plate dia. What usually happens is that someone oils everything up & this being one that gets a shot. It needs FRICTION not lubrication. You may be able to clean it up, then warm it in a micro wave & expand the ends to make it a larger dia.

This "bearing" is a fiber ring 5" in diameter, 3/16" thick & 1/4" wide. It is has a groove around in the inside to fit over the plate, & split in the middle like a set of piston ring to allow installation. If it is collapsed, meaning it has both ends almost together, it will not be able to put enough pressure on the timing plate. You may be able to put it in a micro-wave for a few seconds to soften it up, allowing you to spread it back out & be reusable. When installed it acts as a bushing excreting circular friction between upper plate & the block. The thickness up & down is not where the tension is put between the two but the outer circumference pressure.


Mine is not collapsed, I have a whole other timing plate and holder, I'm gonna swap and try it.

 

[the machinist]

Re: 1983 9.9 I just rebuilt, an issue

Like Rick said, disconnect the linkage from the tiller arm & the timing plate. This will help isolate it if it is under the flywheel. If it is under the flywheel, you may not have gotten the fiber 5" bearing totally inside the timing plate recess when you tightened it down. Did you per chance replace one of the timing plate mounting screws to the bottom plate & could it be longer binding on the top of the block? Are the outlet wires from under the flywheel free to allow the timing plate to make total movement? You might also check the pivot point on the vertical tiller linkage shaft & see if there is binding where it is bolted to the upper block where it pivots.

Other than that you may well have corrosion on the tiller handle shaft in the rear of the handle. It has a plastic sleeve that the metal shaft goes thru & can corrode, creating a lot of resistance on the actual twist grip.

LeeRoy

 

[bktheking]

Re: 1983 9.9 I just rebuilt, an issue

Is this the "leeroy" talking, god of 9.9's?

 

[the machinist]

Re: 1983 9.9 I just rebuilt, an issue

Yes this is me, however I am not sure about the last part of the statement

 

[bktheking]

Re: 1983 9.9 I just rebuilt, an issue

http://www.sschapterpsa.com/ramblings/Ramblings.html

This guy, Leeroys Ramblings, the 9.9 god of knowledge?

 

[Milemaker13]

Re: 1983 9.9 I just rebuilt, an issue

This may not be the issue, but recently my tiller was very hard to rotate. Ended up being the metal tag that is wrapped around the handle to indicate the throttle position. It was a little loose and binding with the throttle handle, causing the problem. I cleaned it up and bent it slightly so it would 'hug' the shaft better.

 

[bktheking]

Re: 1983 9.9 I just rebuilt, an issue

Ok, I removed everything, switched plates, reinstalled. The timer plate moves relatively easy. I tried the handle without the plate connected , it moves easy as well. I think the problem is the tiller handle gears and the bolt that holds the tiller handle on, there is 3/4 inch side to side motion in the handle so when I rotate the gears shift causing them to bind and jump. Any easy fix, I read about shimming, has anyone done that?

 

[Rick.]

Re: 1983 9.9 I just rebuilt, an issue

I made some washers from plastic laundry bottles once for the beveled gear. I was in Home Depot once and they had some good looking nylon washers that might have worked too. Rick.

 

[bktheking]

Re: 1983 9.9 I just rebuilt, an issue

The gear setup on these motors is absolute crap, surprised it took 12 years for them to fix the problem.

 

[Rick.]

Re: 1983 9.9 I just rebuilt, an issue

I agree. I'd like to have one with the cables. Rick.

 

[bktheking]

Re: 1983 9.9 I just rebuilt, an issue

Shimmed the tiller handle today with a washer made from a tupperware lid, turns much easier and no longer jumps teeth.

 

[Rick.]

Re: 1983 9.9 I just rebuilt, an issue

tupperware is a little rich for my engine but glad you got it working better. Rick.