I have been researching many posts on multiple forums about adding a Tell-Tale to my '76 Evinrude 70HP. The preferred location is on top of cyl #1, where the nomenclature disc is pressed in, with an alternative on the top of the head.
I see in iwombat's post that the V4 engines have a cast-in...
An update for all those who replied and gave me incredibly valuable information and guidance regarding my 1976 Johnson 70HP motor issues (Thank You All 🙏)...
* This issue was caused purely by human error (that is on me, live and learn) combined with component failure.
* The motor was replaced...
I agree. My ability for a rebuild is there, but time isn't. I also agree with the lack of knowledge on 2 stroke combustion flow. Like many things, it is knowledge that is dropping from society as high tech advancements are slowly making it obsolete. The tree huggers don't like them much either.
Thanks again for all the help. I did post these over on the other Marine Engines forum, so if you are also active over there, please excuse the duplication. If some are like me, I tend to stick to a home forum as a Community Volunteer where I am established.
I have scoped the cylinders and was...
I wasn't commenting on your knowledge base, your experience, or your expertise, which by the level of your Forum Membership is clearly respectable. My issue was with your cast iron frying pan to the face approach without asking questions first to get a clear understanding of the situation. Just...
Cold compression test isn't looking so good. ☹️
Cyl 1: 82
Cyl 2: 82
Cyl 3: 76
Spark drop test passed on all 3
Spark test was insanely good on all 3. Was bridging a 3\4 inch gap and even jumped my insulated pliers to zap the snot out of me.
looks like she is just old and tired. 😴
> UPDATE: I...
Thank you so much @racerone for your so very helpful and informative reply. If I didn't know any better, I would almost believe I was being scolded like a child rather than being helped like an adult. But since you are clearly in more of a helpful mood, I will entertain your reply.
I inherited...
? did you see any improvement once you put the new parts IE: plugs , CDI , coils ,etc.
A> Not enough to be considered a successful fix.
? , what made the "mechanic ' believe it was faulty coil /coils , IE: how did he test them.
A> He stated that he tested the Power Pack and said it failed. I...
Aaahh! I did not even notice the band connecting #2 and #3! Thanks for pointing that out! So that is a non issue. I will have to rerun compression for values, but I did test all 3 and they all tested within a pound or two of each other. Mechanic also tested them and said compression was good...
I have a '76 Johnson 70HP (70EL76D) that I inherited. It has been running for years with only a slight hesitation on WOT from neutral. Last season, it got worse to the point that the hesitation was permanent and it would not achieve more than 6 or 7 mph. I replaced the plugs and all 3 coils with...
