A 5.7 from a truck should be easy to come by and relatively cheap.
If it was me (and it was me at one point) I’d be shopping for a replacement right now and go through it in the garage; but I’d be putting a patch of JB on that and running it until it won’t go any more.
If you have the shop...
I could be way off here, but at the house do you ever start the engine with the flame arrestor off of the carburetor?
If so, look through that thing and see if it’s clogged?
I always know it’s time to clean my flame arrestor when my boat runs like crap.
After this season my engine is...
Yeah check out the obvious first, maybe I’m wrong and someone else can better explain to me but out of gear you’re getting 4K rpm and it’s running normally but in gear it all changes, I just can’t see it being a carb problem then because it’s not a variable.
if you have something binding up...
I’ve tried looking around online for a replacement tachometer but the tachometer I’m trying to find is a 2” gauge.
The only gauge on my boat that is bigger than the others is my speedometer.
anyone have a part number or a link to a marine gauge? It appears that the tachometer I currently have...
When you say full power in neutral do you mean that you have it out of gear and you’re manually operating the linkage on the carburetor?
Because if that’s the case I wouldn’t be looking around the carburetor too much but that’s just me.
to me if the carburetor is eliminated from the equation...
And just to clarify I did end up changing my sea water pump and my temp is lower.
I suspect to drop several tick marks on the temperature gauge once I put this 142 degree t-stat in
I’m kind of chasing an issue right now myself. I’ve done a lot of searching around online on this same subject and from what you’re describing 158 degrees is pretty cool.
I’d say the 350 has a 160 degree t-stat or it was atleast factory.
it kind of sounds like the thermostat is getting up to...
I would just start there.
refer to your manual with all the prints and schematics. It could be something like plastic connectors that popped loose due to heat making the clips brittle.
if you have a multimeter you could narrow that power pack down pretty easily. Maybe even something “magneto”...
The more I think about it, the more is coming back to me.
seems like I went down the rabbit hole of the kill switch. And as I recall, I used a multimeter to check that kill switch electrically.
There’s a sweet spot that kill switch has to be “gapped” to if that makes sense? and it’s the...
If I owned a Johnson Evinrude and had a no spark condition on all cylinders I’d be first looking at the power pack, but that’s just me.
dad had an old Evinrude from the 70s (35hp); I can’t remember exactly what had happened but I know he was able to jump something out/around that power pack to...
