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So everything turned over ok until you changed batteries? Wouks start by cleaning and tightening all positive and negative battery connections including ones at the starters down low…

There isnt one on an automotive carb…look at your old q jet you will find a nipple on there. On eddys it pressed into the cast at top if carb. Do yourself a favor and rebuild the q jet or get a marine carb.

Then it will not have a fuel pump diaphragm rupture hose connection

running lean and detonating. What do the plugs look like

Take fuel line off carb, crank engine see if it pumps fuel into a container . Also agree from limited details sounds like you need a carb rebuild

excess gas is not vapor lock it means the bowl is emptying into the engine and it’s flooded , hence open throttle to let more air in. Vapor lock is gasoline in gas phase in fuel line so pump can’t pump it so carb doesn’t have excess gas it has no gas

Start with 1.5 out adjust as needed to get it to idle well

I remember look at an enertia eco was 16” that was listed as fitting my alpha gen 2

What’s your current pitch and what is your wot rpm? I suspect you may be running too much pitch now As Scott suggested go down in pitch. Also would run a 4 blade , I prefer them as my primary use is loaded down skiing. I had good results with Michigan vortex 4 blade props if you want to stay...

The leaky bellow will do more damage than running it on trailer range

Car ps pump is the same except for relief valve … Definitely get second opinion but if it does need replacement many ways to get it done If you have time shop around you can also find used engines on CL and eBay or find a rotten glass boat with decent engine pull the engine and trash the rest...

They stopped making the 5.0 in 2015 or so so prices went up such that a 5.7 is cheaper. If you have an injected engine and don’t have the wherewithal to mess with reprogramming your stuck

Use for unleaded gas maybe an older head

He is saying for the same hp rating he would take the larger displacement, lower performance carbed engine. both groups are 220 hp and 260 respectively….

Not sure if buzzer was from over heat or low oil pressure but either can toast an engine. I bought my boat seven years ago as a handyman’s special with blown engine. The PO was a friend of a friend and got a $11,500 estimate to replace it with a merc reman bobtail … so $15 k at a marina on the...

Concern here is if your bearing clearances were set up correctly, which based on what is seen I would bet they are too tight. Hopefully there is documentation of this convo in case You have an issue down the road. It sounds like you are looking at all the right things hopefully water test is good

Threw me for a loop too - had old engine in air stripping parts to go on new base engine … no fit…. Rigger I use at work was doing me a solid was hoping to be in an out in a couple hours. Luckily he took care of me and came back for install 15 ton crane each time … was working at a brewery at...

If parts are long lead time you can probably find a restrictor or washer to put in place of thermostat or drill a s load of holes in stat to bypass water

The bolts that are metric are side motor mounts, flywheel cover mounts, starter bolts. Metric is an M10 thread, US is 3/8-16. Ironically on a metric block all other threads are US , not sure why GM did mix and match on same block. When I swapped my metric 4.3 for a 5.0 ended up costing about...

Idle set the timing to spec which I think will be 9 or 10 deg btdc depending on vortec or not Once timing is set remove the jumper. When you get it on the water and in fwd set the idle speed to spec which is around 650 rpm. Key to make sure the throttle cable is adjust such that the throttle...