help!!! 1959 johnson fat fifty

ron12

Cadet
Joined
Jun 14, 2009
Messages
29
so i thought the motor was gonna run today got the magneto unit from norm boddy what a great guy. the motor tryed starting but immediattly died.then i tryed it again and it backfired pretty good and then there where flames coming from the lower unit. would that be from the motor getting flooded or ? any ideas on how to fix that?
thanks again,
ron
 

F_R

Supreme Mariner
Joined
Jul 7, 2006
Messages
28,226
Re: help!!! 1959 johnson fat fifty

so i thought the motor was gonna run today got the magneto unit from norm boddy what a great guy. the motor tryed starting but immediattly died.then i tryed it again and it backfired pretty good and then there where flames coming from the lower unit. would that be from the motor getting flooded or ? any ideas on how to fix that?
thanks again,
ron

It is out of time. Maybe the belt is installed a tooth or more off. Or the spark plug wires are mixed up. Or the flywheel key is sheared.
 

ron12

Cadet
Joined
Jun 14, 2009
Messages
29
Re: help!!! 1959 johnson fat fifty

how do i tell for sure if the flywheel key is bad?
 

Chris1956

Supreme Mariner
Joined
Mar 25, 2004
Messages
28,115
Re: help!!! 1959 johnson fat fifty

Ron, The flywheel has a TDC timing mark on it. The block and recoil starter have timing marks on them as well. These are in the rear of the motor. Line them up and stick a screwdriver in #1 Plug hole and see if piston is at TDC. If not TDC, flywheel key could be sheared. Make sure when you reinstall flywheel it is torqued to 140# ft-LBS. You might check with Joe Reeves, since my number may be a bit off.

Also, when the timing marks are lined up, move the throttle until the timing mark on the distributor pully base lines up with the punchmark on the distributor support. Now the distributor pully timing mark should line up with the timing mark on the pully base. If not the timing belt is wrong. Throttle cam should just touch carb roller at this point as well.

The second set of points has a second timing mark on the pully base, where it faces the block. Points should just open as timing marks aliign.
 

ron12

Cadet
Joined
Jun 14, 2009
Messages
29
Re: help!!! 1959 johnson fat fifty

ok cool i will do that and see what happens. thanks for the help.
 

1946Zephyr

Vice Admiral
Joined
Oct 21, 2008
Messages
5,556
Re: help!!! 1959 johnson fat fifty

Flames coming out of the lower unit? Sounds awesome.:D
 

ron12

Cadet
Joined
Jun 14, 2009
Messages
29
Re: help!!! 1959 johnson fat fifty

yeah it was not awesome at the time but now that i look back it was kinda funny.
 
Top