distritutar advance problem(yet again)

[aguitarestv]

on a previous thread i had explained how my advance arm would bind up only at operating temp. i got some great help and good answers to my questions. i tried bending up on the s clamps that hold down the nylon ring,didnt work,aslo tryed shim washers again it didnt work. so i did some reading in the sealog manual and it was saying if there is an advance problem,or hard shifting,that there is a berring between the powerhead and the lower unit that could be gone and the powerhead would have to be removed(something i dont wanna do unless its absalutly nessasary). know IF this berring was gone, wouldnt the arm bind up all the time,and not just at opperating temp.? i am just getting really fed up with having to remove the cover and advance it by hand,or wait till the motor cools,to drive the boat back in. going on 3 years with this problem and still can not fix it, and it is a great strong motor and i dont want to be fourced into buying a new one if this one can be fixed! but thanks for talking the time to read this and any comments and answers are greatly appreceated.

 

[F_R]

Re: distritutar advance problem(yet again)

Bearing between the powerhead and lower unit???? Not that I know of. If they are suggesting the top main bearing in the powerhead heating up, it seems like it would totally destruct long before 3 years.

It would seem to me there's gotta be something wrong with the fit of the timer base bushing on the crankcase head. But I know you have looked at it many times, but I have not.

 

[aguitarestv]

Re: distritutar advance problem(yet again)

thats what i also thought so i got a used nylon ring and it still happend, so then i got a new one and it still happened, it only happeneds when the motor gets to opperating temp. witch leaves me totally lost.

 

[F_R]

Re: distritutar advance problem(yet again)

Isn't there a brass bushing in the timer base that pivots on the crankcase head? I'm thinking that the clearance of those parts is off (too close a fit). Something got through QC that was a few thous off. Warms up and gets tighter. Just guessing from here.

 

[aguitarestv]

Re: distritutar advance problem(yet again)

yea that was another thought i had, i had anti-siezed the crap out of it hoping that it would help but it didnt. so i am wondering when my waterpump blew and it heated up if it could have worped the brass sleeve, although i didnt see any signs of heat damage. so should i look for a new base plate or mabye have mine machined out a wee bit?

 

[aguitarestv]

Re: distritutar advance problem(yet again)

i belive to have found my problem it is where the baseplate rides on the crankcase head i can see some score marks on the baseplace and the crankcase head,(the round part that looks like a hockey puck that the bearing sits in). i know that the bearing has to be pressed in with an arbor press (or a big enough socket) but does the hockey puck looking thing get pressed into the crankcase head also, because if it does i think i can get that pushed down and my problem should be fixed!