Mark20

[jon66w]

Below is link to the mark 20 parts list from Grubbs East Marine. I have used them several times for my 3 Mark 55 H's and found them very reasonable.


http://store.oldmercs.com/category_s/129.htm

[Smitty]

For the prop nut, which must somehow have got itself galled to the shaft threads, borrow or buy ($20 at Harbor Fright, and endlessly useful)(until you smoke it and have to buy a good one) a small sidegrinder. VERY CAREFULLY, so as not to ding the shaft, grind the nut on opposite sides, just short of hitting the shaft threads, so that you can crank it back and forth with a pipe wrench or Vise-Grip and break it off.

[krazy karl]

My book says the Sierra number for the impeller is 18-3008.
I don't know if it's still available.

I work for NAPA, there 2 in the Memphis Distribution Center which your local NAPA store can get for you. There are only 10 in the NAPA distribution system at the moment.
kk

[Bob Rusnak]

I have many new parts for the MK 20 lower unit. The top cover for the water pump and all the pump parts + new prop shafts. If you need anything lat me know....Bob 631-849-3242.

[peter caroselli]

Bendex Mag

I rebuilt these with good used points new coils new
condensers and spark plug wires.... Will throw strong spark when complete. Great attention to detail will look new when you get it back.... You set point gap and set timing......... pecarosel@aol.com

Peter