Active Mike

Thanks guy's for all your help. My guess is he didn't replace the load ring when he had the bearing carrier out. I understand the set up procedures on the lower unit. I'm heading back to the marina to pursue this Wed.

Dick if I have any further questions I will give you a call.
Thanks,
Mike

Mr Gadgets

Ok. Mike. Good luck with him.. whew..

I am leaving Thursday nite for FL.. and should be home during the day off and on..

Dick

B-Stubb

I have some more Questions I swaped out a difrent lower and set up the gears what are we looking for for on backlash on the pinion vers the propshaft gear ,I understand the peload or zero lash on the propshaft, im concerned with the shim in the back bearing I took out a 13 th and used a 16 th and got a little tight im only just a couple of thousandth backlash I was thinking about 8-10 ??

B-Stubb

Any help would greatly be apreshiated

US1 Fountain

iTrader: (1)

Backlash=.012- .015. You are using the backlash adapter that clamps to the drive shaft right? Pinion height set?

B-Stubb

ok pinion hight you talking about shim under bearing on verticale shaft

Mr Gadgets

B-stubb,
The pinion gear height is set with a tool that measures how deep the pinion sits in the case in relation to the centerline of the propshaft. The shims under the bottom race in the case for the upper bearings determines how far down the pinion gear sits. With the depth setting tool this should be .025", then you add or subtract shims from behind the race in the front of the bullet to get the proper gear lash. That is the .012" - .015" mesured with the wing clamped to the top of the vertical shaft. The preload must be correct to get an accurate mesurment. You do this by adding shims to the top of the bearing stack on the vertical shaft and clamping down on it with the clamp plate.

The procedures are explained in Merc's shop manual, it would be a good idea to get one if you are planning on DIY. There are a lot of tools needed to do it right..
I hope this helps...

Dick

hillbilly24

B-stubb, Mr. gadgets is right, if youre getting into do it yourself drive work you defenitly need a Factory manual. they are not that much money and they will show you everything you need to know like wich back lash flag to use fo that drive and what position to line the dial indicator up too. there are alot of important details to building drives right. And even if you could get all the answeres to your questions on here it would take you months to sift through what is fact and what are opinions so go get yourself a manual.

US1 Fountain

iTrader: (1)

You will need those specialty tools to do it right No way around it without them. Once I got the measurements, I made a set. It's really a piece of cake, if you have the manual and tools.

US1 Fountain

iTrader: (1)

Keep in mind that if you take shims out from the bottom, you will need to add them to the top.