Starter bolts broken 72 85hp johnson

[INDYCAVER1]

I have looked around and not seen any other posts about the starter bolts stripping out and breaking on older Johnsons. My neighbor said its a common problem though. Im goin to drill out and helicoil, but I was wondering if there are any other ways to help from the problem happening again. I was hoping some one designed a retro fit bracket or something to take a little of the strain off the single bolt on the front of the motor. Any help would be appreciated.

 

[tashasdaddy]

Re: Starter bolts broken 72 85hp johnson

keeping all the bolts tight is the fix.

 

[INDYCAVER1]

Re: Starter bolts broken 72 85hp johnson

Got the old one drilled out and heilicoil put in. I also installed 2 studs in the intake manilfold and put an 1/8 in. steel plate between to help wedge the starter in and take some of the strain off of the single bolt on the front of the motor. I made sure to use lock washers on all bolts, and I will remember to check the tightness often. I hope it lasts!!!!

 

[kenmyfam]

Re: Starter bolts broken 72 85hp johnson

Got the old one drilled out and heilicoil put in. I also installed 2 studs in the intake manilfold and put an 1/8 in. steel plate between to help wedge the starter in and take some of the strain off of the single bolt on the front of the motor. I made sure to use lock washers on all bolts, and I will remember to check the tightness often. I hope it lasts!!!!

How about a photo to show us all ???
You beat me to it getting them out. I was going to advise a left hand drill bit and run the drill unit in reverse. A lot of the time the broken piece will unscrew itself as you are drilling.

 

[R.Johnson]

Re: Starter bolts broken 72 85hp johnson

That starter is heavy. A out of balance prop will shake it loose from the block.

 

[INDYCAVER1]

Re: Starter bolts broken 72 85hp johnson

Ill try to take a pic tomarrow. my pic wont upload off my phone. Ill try to get a pic on my digital camera.

 

[INDYCAVER1]

Re: Starter bolts broken 72 85hp johnson

here it is.

 

[INDYCAVER1]

Re: Starter bolts broken 72 85hp johnson

Ive got the starter holding great now, but something I have done has caused the motor to run bad. It idles 500 rpms higher now and seems to miss. Its almost like a bad vacuum leak or too much fuel or something. Is there anything i could have done to screw something up to make it run bad. It normally idles at 650 rpm and now its almost 1200 rpm. I took off the top carb to get a better angle on taping out the hole, but i took it apart and it seem to be ok , and just the same as it was before. If i spray a little carb cleaner on the bolts i tapped out it bogs down also. any help would be great.

 

[kenmyfam]

Re: Starter bolts broken 72 85hp johnson

Is the carb leaking through the gaskets anywhere ???

 

[INDYCAVER1]

Re: Starter bolts broken 72 85hp johnson

It might be leaking a little bit. I shoot the carb cleaner around the gasket, and It bogged down a little bit, but not as much as when I spray the starter bolt holes? I dont get it??? It got to be something simple cause it ran great before I lost the starter.