Search found 261 matches
- Sat May 21, 2011 4:05 am
- Forum: Miscellaneous
- Topic: 1959 Thompson Sea Coaster
- Replies: 4
- Views: 11526
- Mon May 09, 2011 7:20 am
- Forum: Miscellaneous
- Topic: Boat Rolls at speed
- Replies: 24
- Views: 39330
Too hard to tell from photo, but it is a 20 inch engine on a 20 inch boat. The mounting brackets that are best to use, have 4 holes about 1/2 apart to fine tune your engine heigth. In most cases not necessary, but nice to have. These brackets are a direct exchange for the ones you have, can not tell...
- Mon May 09, 2011 3:01 am
- Forum: Miscellaneous
- Topic: Boat Rolls at speed
- Replies: 24
- Views: 39330
Joe The heavy duty gearcase was only offered in mechanical shift and was last offered in 1968 as an option on the 65 and 85 . In 1969 thru hub exhaust gearcases were the only option. It is the same basic gearcase as the 1958 and 59 50 hp. Way back then, I was a factory certified mechanic for Evinrud...
- Sun May 08, 2011 7:22 pm
- Forum: Miscellaneous
- Topic: Boat Rolls at speed
- Replies: 24
- Views: 39330
- Sat May 07, 2011 5:58 pm
- Forum: Miscellaneous
- Topic: Boat Rolls at speed
- Replies: 24
- Views: 39330
Pictures are worth a thousand words, your engine has a heavy duty gear case for heavy loads and slow speeds. They were first used on 58 and 59 50 hp engines. They were noted as gas hogs and slow, but a lot of power. Prop torque could be the problem! You are out of my field of direct knowledge, howev...
- Fri May 06, 2011 7:04 pm
- Forum: Miscellaneous
- Topic: Boat Rolls at speed
- Replies: 24
- Views: 39330
Just because the engine came off a bigger boat does not mean it had the correct prop. Look for a part number on the prop. The best prop will have a smaller dia hub than the gear case, that is the smallest pitch prop. Do the mounting brackets have 3 or 4 choices for engine height? The newer 70 had th...
- Wed May 04, 2011 2:29 pm
- Forum: Miscellaneous
- Topic: Boat Rolls at speed
- Replies: 24
- Views: 39330
Your old 1965 75 has less prop shaft hp than your newer 1983 70hp. The 1983 should be 5 mph faster! How fast are you running? Any idea of max rpm? If the engine is over proped, it is possible to cause the boat to be twisted to one side. RPM @ wot should be 4500+, if boat run but 30 mph, a 10 inch pi...
- Tue Apr 26, 2011 7:35 pm
- Forum: Miscellaneous
- Topic: Moving Day
- Replies: 8
- Views: 15884
- Sat Mar 19, 2011 1:55 pm
- Forum: Restoration
- Topic: Surprise of the day
- Replies: 7
- Views: 9995
- Tue Mar 15, 2011 6:00 pm
- Forum: Restoration
- Topic: Which Is Stronger
- Replies: 6
- Views: 9184
Which Is Stronger
Which is stronger, forming ribs by laminating 1/8 inch strips of oak or steam bending them?
- Sat Mar 05, 2011 3:47 pm
- Forum: Restoration
- Topic: gripe repair 60 Cruisers 17'
- Replies: 6
- Views: 9427
- Sat Mar 05, 2011 9:33 am
- Forum: Restoration
- Topic: gripe repair 60 Cruisers 17'
- Replies: 6
- Views: 9427
What is a gripe? Here's a few of my Cruiser's pictures. www.aerialimaging.net/john
- Sat Feb 26, 2011 4:17 am
- Forum: Engines
- Topic: 75 hp. 1960's Johnson
- Replies: 14
- Views: 42895
I would highly recommend you do do change engines, the 100 is far a better engine, both in performance and economy. The 90 were not know as great engines, it was the first year of the 4 barrel carb! They both look the same under the cover, it would be easy to find a 90 cowling and even change the se...
- Thu Jan 27, 2011 7:18 pm
- Forum: What do I have here?
- Topic: Sea Lancer center console?
- Replies: 11
- Views: 19820
- Tue Jan 18, 2011 8:07 pm
- Forum: Restoration
- Topic: New fastening hardware
- Replies: 8
- Views: 9925