Recent content by Whitemustangman

I have a leak down tester, no need to make one😁. Yes throttle wide open and all plugs out

I soaked them for about a week before I got around to assembling the engine. I’m gonna take the lifter cover off and see if they’re acting solid or adjusting

I bought a cam/lifter kit for the engine so I hope they’re correct lol

I tried adjusting the valves like that, it would run rough when I did the 1/4 turn then smooth out, but afterwards I would check compression and it was low….. I don’t know but it really has me pulling my hair out , I’m gonna do a leak down test when I get a chance and see what that shows

Yes, it was cleaned thoroughly before and after machine work, I ran brushes through every passage and oil flows good from every push rod.

They are hydraulic lifters but the problem seems to be that they’re not adjusting themselves, they’re acting like solid lifters from what I can tell. I’m gonna pull the lifter cover and see if they’re collapsing when I preload them or not . I’ve built a ton of car/truck motors and have never had...

I was thinking maybe the valve springs are weak? I duno what else it could be. I figured the machine shop would have checked the springs… maybe not

It was bored .030 over and honed to the pistons by the machine shop, I verified proper ring gap and piston clearance prior to final assembly. The cam and crank are timed correctly. It has great compression but only if I remove preload from the lifters. 🤷🏼‍♂️

The rockers and hardware are original, they’re in good shape, I can’t for the life of me figure it out lol

It’s running pretty good with 89-90 lmao it’s crazy, I tested my other boat with 3.0 and is 139-140 acrossed the board up

Seloc

Everything internally is new, crank, rods, pistons, cam, gear , lifters ect

Yes, but only like .008 taken off head, nothing off block

They have 15 hrs on them