which conn.rod will work?

[tschamp20]

will a conn.rod from a 1974 115 work in my 1973 115?found some on a great deal.but my conn.rod # doesnt match johnsons site.the 1974 # is 318711 my 1973 # is 317777.if that helps.these numbers are stamped on the rods.

 

[Joe Reeves]

Re: which conn.rod will work?

Those numbers are casting numbers and normally they do not change. I'd suggest that you examine both rods extremely close, looking for the smallest variation, and if you find one..... don't use it.

The 1973 rod part number is 385510, unavailable since 1992.

The 1974 rod part number is 385911 original - superseded up thru 387831 - 393754 - to 392591 latest number of which I have four left in stock. The casting number on this rod 1974 rod is 321712.

 

[Dhadley]

Re: which conn.rod will work?

The 1973 V4's were a one-of-a-kind deal as far as the powerhead goes. The block, crank,rods and pistons will only fit those components from 73. Not 72 & earlier, not 74 & later.

A complete powerhead assembly from 74 to 76 and some 77's are a direct swap. Powerheads from a 1977 140 & all 1978 & newer V4 crossflows can be adapted to your 73 mid section.

If all you need is a rod, you'll have to use a 1973 rod if you have a 73 block, crank and piston.

 

[tschamp20]

Re: which conn.rod will work?

im starting to wonder if this powerhead is in fact a 1973 115.cant i give you a number from a welch plug?is that the only plug on top with a number starting w/ a j?im gonna go get that number.ill be back

 

[tschamp20]

Re: which conn.rod will work?

started a new thread w/ this but in case your checking here. the number i was able to get is j3864229 from what i think is a welch plug(?).

 

[tschamp20]

Re: which conn.rod will work?

is this conn.rod useable? hope this comes out clear.

 

[Chinewalker]

Re: which conn.rod will work?

No. I would not use that rod. Those look like water marks, typically caused by moisture condensing on the bearings. If the bearings have no film of oil on them, they rust. There they contact the rod also rusts. Comes from improper winterization or storage...
- Scott

 

[tschamp20]

Re: which conn.rod will work?

the problem im having is as mentioned above,only a 1973 conn.rod will work and i cant find one.ive been to a boat junkyard,the biggest around here,and the net.im really stuck having to reuse this rod.what are the realistic options for me.this motor is totally ready to be put back together as soon as parts are ordered.

 

[Dhadley]

Re: which conn.rod will work?

Call Jack at Superior Marine. 800-338-9281. I'm sure he can fix you up. Tell him I said hello.

 

[Chinewalker]

Re: which conn.rod will work?

tschamp20, drop me a line. I think I can help with the 317777 rods...
csr112-n at prodigy.net
- Scott

 

[tschamp20]

Re: which conn.rod will work?

thanks for the offer chine. actually ordered one tonight. good lookin out!