Thread: Harmonic balancer on 454 has 4 timing marks.....

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Originally Posted by pat mccarthy

try the for sale spot on here ,no i have room for a few more blocks if i think i can move them but even the stuff i think i can move is moving slow .so engine block have to be very cheap for me to grab them. i really only a buyer of bbc and some other s 460s.. 350 vtech roller engines

I plan on listing the flathead here. As for the BBC I figured those move best. I had a hell of a time finding mine. Seems there in high demand and running low on donor blocks.

Originally Posted by repoman3809

What do you make of this. There was some super white substance on inside each head. Mostly on top of the rocker studs and inside of valve cover. The oil is fine, the water in the block was fine(remember I pulled apart the front of motor. I could see down in the oil pan and obviously in the water jackets). The stuff was just in the heads, it doesnt look like milky oil, more like some type of assembly lube.

Also what you make of the rust?

The above mentioned was bothering me. I didnt have much time, so I just wanted to do a few more checks on this today. I checked everything....exhaust tips(black), dipstick(clean oil), pan, though bottom of timing chain cover(clean oil), oil filter(clean oil), water jackets(clean water [remember boat...water pulled n thur outdrive, blown out exhaust]).

But the inside of valve covers is caked in this white crap. Reminds of white hand cleaner or crisco, with maybe a touch of brown tint. It's mainly sticking to the top/inside of the valve cover(more on right bank). Though some on the top of the rockers and some laying in the low points of the head(low stuff is milky). Plus a decent amount of rust all over. The rust is on the head and springs. More on the rear sides of head(6&8-5&7). But the most on the right bank, especially 5-7.

Which reminded me, the exhaust coming out this bank never seemed as strong as the opposite side. The exhaust tips have black rubber flappers to keep the water from coming back in. The exhaust tips sit above the waterline, but under the boats swim platform. The flapper on the left side bank(2-4-6-8) actually hits and marks the above swim platform. The right side(1-3-5-7) doesnt(or not much). This also follows the compression readings(2-4-6-8 reads higher).

I wonder if for whatever reason, I'm getting some serious condensation issues. The right side valve cover has a breather filter, where as the left cover is sent back to air filter. That might explain the rust and white stuff. If so, I wander if the rust is effecting the valves ability to seat.

I sprayed the valves, springs and heads with some lube oil. I tried to get as much of the rust out as I could. We'll see if the helps future tests....

sounds like condensation on cool down---engines need to get the oil hot enough to vaporize any moiseture in the oil and be vented good enough (pcv or such) to run the moisture thru with the combustable mixture to burn it and discharge it with the exhaust----

Originally Posted by jerry clayton

sounds like condensation on cool down---engines need to get the oil hot enough to vaporize any moiseture in the oil and be vented good enough (pcv or such) to run the moisture thru with the combustable mixture to burn it and discharge it with the exhaust----

I agree. I've seen similar deposits in the rocker cover area on engines that see mostly short runs in the city, never getting a chance to fully warm and cook off moisture. Lubricants have similar molecular makeup with basic soaps, and can build creamy off-white gunk that needs to be vaporized.

That makes sense. The motor has never run long. Its obviously in an area where moisture is abundant. Plus it doesnt have a closed cooling system. It's constantly drawing in cool water and blowing the warm water back out the exhaust. So it stay cooler than most motors.

Originally Posted by repoman3809

That makes sense. The motor has never run long. Its obviously in an area where moisture is abundant. Plus it doesnt have a closed cooling system. It's constantly drawing in cool water and blowing the warm water back out the exhaust. So it stay cooler than most motors.

there no PCV on the boats you blow it in to the flame arrester so it not getting pull out so boat heads can get funky .so heat is the only way it burns out some may draw out of the vent tubes to the arrstor

Originally Posted by pat mccarthy

there no PCV on the boats you blow it in to the flame arrester so it not getting pull out so boat heads can get funky .so heat is the only way it burns out some may draw out of the vent tubes to the arrster

I noticed that.

The motor has a air breather on the right valve cover. Think for future motor, it should be switched to both lines back to flame arrestor? Or you think the air breather is better? The arrestor does have hookup for 2 lines. It's set up where the line off the left valve cover tees off in both arrestor hookups.

Originally Posted by repoman3809

I noticed that.

The motor has a air breather on the right valve cover. Think for future motor, it should be switched to both lines back to flame arrestor? Or you think the air breather is better? The arrestor does have hookup to 2 lines. It's set up where the line off the left valve cover tees off in both arrestor hookups.

use what you like long as it UL coast guard .one tube off each valve cover to the arrestor