TOPIC: Impellar change on QD-16 Johnson

Impellar change on QD-16 Johnson 13 years 5 months ago #38533

Bwana Don
Topic Author
Offline
Contributing Member
Posts: 83
Karma: 2
Thank you received: 0

I'm having a hard time removing the lower unit from my 1955 10 horse Johnson. I've opened up the oval window that's half way down the leg. The two screws are out of the brass thingy. I took out all the bolts on the bottom. The lower dropped about a hakf an inch and won't go any further.

Is there something else I need to remove or loosen. This thing is not moving, I even tapped on it with a rubber mallet. I'm afraid if I get to froggy with it I'll break something.

Any help is appreciated.

Don

Please Log in or Create an account to join the conversation.

Re:Impellar change on QD-16 Johnson 13 years 5 months ago #38553

TallTexan
Offline
Gold Boarder
Posts: 762
Karma: 55
Thank you received: 0

The plate you removed was to disconnected the shifter rod...just taking the screws out does not always free it (BTW only the lower screw needs to be removed....just loosen the top)...be sure that the rod slides out...if not pry the linkage (the brass part) apart a bit with a screwdriver be careful not to bend the rods

Please Log in or Create an account to join the conversation.

CAVU

Re:Impellar change on QD-16 Johnson 13 years 5 months ago #38577

Bwana Don
Topic Author
Offline
Contributing Member
Posts: 83
Karma: 2
Thank you received: 0

Thanks I'll try that. This motor has sat for a long time. When I opened up the screw at the bottom of the lower it was dry.

I replaced the coils, points,condensors, plugs and wires. Impellar is next. Then the carb gets rebuilt. I ordered a Mikuni fuel pump too. I'm getting rid of the pressure tank.

Please Log in or Create an account to join the conversation.

Re:Impellar change on QD-16 Johnson 13 years 5 months ago #38592

TallTexan Offline Gold Boarder Posts: 762 Karma: 55 Thank you received: 0	Be best to replace the seals in the LU if you are that far apart and it was dry I know that the shaft seal is the same for a 55 and a 57...the others should also www.go2marine.com/search.do?q=18-2682 Order from your NAPA Check this box to be notified of replies to this topic. Note: BBcode and smileys are still usable.
	Please Log in or Create an account to join the conversation. CAVU

Re:Impellar change on QD-16 Johnson 13 years 5 months ago #38898

Bwana Don Topic Author Offline Contributing Member Posts: 83 Karma: 2 Thank you received: 0	A little PB Blaster and prying with a screw driver and she banged right off. No gasket on the lower and the impellar looks new! I hope this isn't a bad sign. I'll get a gasket set for the LU. Rebuild the carb and convert over to fuel pump. Then we fire her up. Over the winter I'll paint it. Check this box to be notified of replies to this topic. Note: BBcode and smileys are still usable.
	Please Log in or Create an account to join the conversation.

Re:Impellar change on QD-16 Johnson 13 years 5 months ago #38906

TallTexan
Offline
Gold Boarder
Posts: 762
Karma: 55
Thank you received: 0

Bwana Don wrote:

A little PB Blaster and prying with a screw driver and she banged right off.

No gasket on the lower and the impellar looks new! I hope this isn't a bad sign. I'll get a gasket set for the LU. Rebuild the carb and convert over to fuel pump. Then we fire her up.

Over the winter I'll paint it.

Replace the impeller...sitting it may have gotten hard or dry rot set in