Search Results for '1955 johnson RD-17'

[rschrull]

Will post after this is approved youtube video links.  Have a Johnson RD-17 (1955 Johnson 25 HP “Big Twin). Just had an experienced fellow vintage outboard motor mechanic (Bobby Johnson) tune the motor. Did a super and knowledgeable job.  He could not at the moment help further, re what you are seeing in the first video (happened exactly the same in his tank).  It looks like a sneeze, however, notice at once instance (very short moment in the second video) where a tiny puff of white seems to come out from under the ignition plate. Notice in the first video, it’s like it’s sneezing.  When in the lake, under power, it’s even more pronounced. Can get up to speed, as it jerks too hard.  Going to test the area by first spraying something like WD in the area and see if it changes the sound, but also Dawn dishwashing to see if it bubbles anywhere.  Will do these tests this Friday. Wondering if anyone experienced here might have an idea of what is going on. Top crankcase seal is fine. No idea re the lower one, but again, the puff seems to be coming from and area just below the ignition plate and close to the crankcase.  Any guidance/ideas here would be most appreciated.  Having spent all summer restoring a Tee Nee trailer and the boat, very much desire to get this puppy running.  Thanks in advance…..

[Max Fowler]

I am trying to open up the gear case on the motor, but the screws won’t budge. Thought I would come here for help BEFORE destroying the screw head. I am looking for tips on how to get them out. Obviously they are screws, so they should unscrew, but I was wondering if there was locktite used on them, or if they are just corroded in place?

Thanks in Advance.

- Max

[William Bairstow]

Hello All.
I have a 1955 RD-17C 25Hp and I’m at the ‘fire it up’ stage of the project.  I have a 309864 test prop but I understand its incorrect for this motor.  I haven’t been able to locate the correct prop, 388295 test prop.   from my research I believe the prop is for later models and wont provide the correct resistance resulting in higher than desired rpms while tuning. Could I ask the general audience on thoughts regarding this topic?  I usually just get it close, then tune it on the water.  It would be nice to have it more accurately tuned before I get on the water.
Thanks in advance!

[Marcel Kahn]

Hi AOMCI Fam.,

Hoping for assistance. I have a Johnson RD-15 (25HP) which I’d like to convert to electric start. I’ve done an electric start conversion for a 1955 RD-17 and have a good understanding of the process. What I need help with is identifying the right compatible part numbers and models of motors to gather parts from.

Compatible parts I’m looking for:
Flywheel

Electric starter motor

Bracket for starter motor

 

Thank you!

MK

[Chad Graves]

I am restoring a 1955 Johnson 25 RD17

Is there another Float anyone knows of that is close to the original? I have the original, but the metal clip is not tight and the coating is peeling,  I can’t find a replacement for the original part #0375792

Thanks for the help,

V/R

Chad Graves
1953 Johnson JW – 10
1954 Johnson QD – 15
1955 Johnson RD – 17
1956 Evinrude 5512
1957 Johnson CD – 14
1957 Johnson QD – 18
1958 Johnson FD – 12

[Chad Graves]

1955 Johnson 25 Automatic Ignition Cut-Out help

Hello, restoring a 1955 RD-17, it has a cut-out switch, it needs a ground wire from it to the magneto to cut the bottom cylinder spark.

Can someone please tell me where it connects on the magneto? I assumed it was the negative post of the bottom cylinder points? There is not a hole in magneto plate to get wire up,

Please Help,

V/R

 

 

Chad Graves
1953 Johnson JW – 10
1954 Johnson QD – 15
1955 Johnson RD – 17
1956 Evinrude 5512
1957 Johnson CD – 14
1957 Johnson QD – 18
1958 Johnson FD – 12

[Chad Graves]

Hello,

I just got my membership. I have a 1955 Johnson RD 17, 25hp,  I’m trying to find a service manual. Could somebody point me in the right direction thank you.

Chad Graves
1953 Johnson JW – 10
1954 Johnson QD – 15
1955 Johnson RD – 17
1956 Evinrude 5512
1957 Johnson CD – 14
1957 Johnson QD – 18
1958 Johnson FD – 12

[Marcel Kahn]

Thank you guys for the helpful tips/info! I have been working on a 1955 Johnson Seahorse RD-17C 25 HP. Finally after two years of no luck, the motor final works! I had a carb that just wasn’t working after loads of restoring efforts. I’m really just looking to read more about the motor, see what others have struggled with, some fine tuning guidance and also would love to hear what folks are getting for speed/performance. Looking forward to going through the forums!

[outboardnut]

I was looking on Ebay for (396521)OMC needle and seat and found this.
Will this work on my RD-17 Johnson 1955 25 hp????
https://www.ebay.com/itm/265232876084?hash=item3dc11c8234:g:jNkAAOSwwLNg8eef

[Bob Wight]

Welcome to the club and the forum!   Lots of great folks here who are always willing to help out, so feel free to post any questions.   Here’s a link to another thread on your motor here on the forum that you might found helpful.

https://www.aomci.org/forums/search/1955+johnson+RD-17/

Bob

1937 Champion D2C Deluxe Lite Twin
1954 Johnson CD-11
1955 Johnson QD-16
1957 Evinrude Fastwin 18
1957 Evinrude 3022
1958 Johnson QD-19
1958 Johnson FD-12
1959 Johnson QD-20
1982 Evinrude 25hp

“Every 20 minute job is only a broken bolt away from a 3-day project.”
"Every time you remove a broken or seized bolt an angel gets his wings."