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hi aerokirk glad to hear you haven't had any problems in 500 hrs. Wow i don't have nothing close on mine and have had a number of problems. Nothing i couldn't fix but it keeps me busy. That new build...

i have been doing a few upgrades to my airboat. First i installed a plastic auto style fan blade on the front pulley for additional cooling and try to drop high cht's on # 4 cylinder. It keeps the...

https://youtu.be/6RnqhkQpdvE here is a video showing cht's after installing an automotive fan blade on the front pulley.

it has more low end push and engine seems more balanced. Top end they are the same. I love it and i would buy another one before any thing else. It may be a little guiter. It has all the other props...

Bart no matter how careful you are to solder joints there is a chance they won't hold. I seen this all the time when i was commercial fishing. Even with a boat with all factory wiring the joints...

I am going to relocate my oil filter adapter to back of engine under oil pan. I see you have the factory air filter in front of #2 cylinder. Might help air flow if it was moved.

On the factory setup all the air is directed from the rear with nothing in the way to stop air flow.

bart i would appreciate the address to order a cylinder. That was my idea too about that cylinder staying 100 degrees hotter than the rest. Any inro on parts would be great. Not much on the...

i don't know the cfm but with only 2500 rpm it's not much. I didn't add any shroud and i'm sure that would have made some difference. But i'm off in another direction now. I'm thinking with the right...

i don't know the cfm but at 2500 rpm it's not much. I think bart is on the right track i just hate to completely cover up the engine. There has to be a reason for the cooling problem always with #4...

What about an automotive flex fan. Some are rated to 10000 rpm.and should push plenty of air. My electric fans was a flop. Not enough air flow with a small electric fan. Im going to order 1 and try...

Mine didn't overheat but a few times last year but this summer it gets over 400* every time i run it over 3000 rpm. I have read that paint can keep a head from not cooling. Mine are painted too. Plan...

With no exit for air out the back this will be for cooling 100%..what happens in the winter when you don't need all this cooling. I know down here when the temp gets below 60* i can run wide open all...

I'm going to set mine up the same but different. I'm going to use electric fans on mine. I ordered 2-9" fans to use. I had one on my first airboat with a car motor on it and never overheated but it...

Bart that is some nice work. Makes it easier for the rest of us. Sorry i haven't been around for quiet some time. Can you believe my wife wanted a divource after 33 years. Well its over now and back...

If its attached to the rubber boot it would be ok.

It could go there but might heat soak and give the wrong reading and mess up your afr.

glad to see everything goin your way. sorry i haven't been around just too busy with other things. i was just wondering where the trash in the injectors came from. also my wide band sensor never...

It was also no 1 cylinder on the other engine that had the valve seat problem. It was one of the engines we bought for casey's airboat. The oil pressure read the same 40 pounds at idle by my consol...

i don't know what is going on with this adapter. i put it on an extra timing cover i have and it looks like every thing fit perfect. by the way this adapter came off an engine i purchased with a...

I installed an oil filter adapter on my 084 to use a spin on filter. Cranked it up and all looked fine with no leaks. When i got on the water i noticed the power was lower than normal and would only...

https://youtu.be/MNzgxypad1U

bart i see your doing your home work on this project and all i can say is more power to you. you have gone out of your way to answer a lot of my dumb questions. thanks for all of that. i had no idea...

You also talk about what injector to use. It's like there saying one fits all which is not the case. If it were they would only make one injector. They told us at class never substitute one model car...

That would confuse anyone. Following what a photo described that was backward for the engine your working on. I didn't notice that until you sait something. Glad you got over that hurdle. What about...