Blow by on my 440

[BeerCan]

440 rebuilt in 1994 and has about 20k on the rebuild. When I got the car I realized they had the AF on wrong and the car was not breathing filtered air. I am pretty sure that lasted the whole 20k. I also think the PO may have overheated the engine in the last 5k miles.

[video]http://www.govbt.com/pics/VID_20181011_154242.mp4[/video]

 

[oldhp]

PCV hooked up and working? Might try going up in oil weight. Blow by looks to be steady, probably weak rings. Last shot is valve stem seals. Good Luck!!!

 

[Cujet]

That's quite a bit of blow-by. I'd guess it's rings. Might want to do a compression check and see if you have a low cylinder. Also a borescope would be a good idea.

It's entirely possible there is a cracked ring, or a that the cylinders were not bored out last overhaul, leading to excessive clearance. I am guessing that's not valve guides, as exhaust guides and seals would have to have insane clearances to allow that much by them.

 

[BeerCan]

PCV hooked up and working. Oil is a 10w30 HDEO

 

[OVERKILL]

Time to swap in a 6.4L HEMI LOL

 

[NYEngineer]

Perfect opportunity to do a rebuild and use some 440Source rods and pistons and some modern heads. Lighter reciprocating assembly works wonders.

Also check this out... http://mewagner.com/?p=444

 

[danez_yoda]

Put some 20W50 and run it like you stole it.

 

[440Magnum]

Yuck... and its too bad because it sounds healthy otherwise. How is the oil consumption? If its not actually sucking down a lot of oil, then maybe you have the wrong pCV valve installed and it needs one with more flow (there are differences, usually they don't matter but sometimes a smallblock PCV won't flow enough for a big-block. You could also get a breather cap that vents to the air cleaner to keep the engine bay from getting all coated in vapor. See link...

https://photos.app.goo.gl/cRZRgmAMPTr9piAz8

 

[maxdustington]

Originally Posted by OVERKILL
Time to swap in a 6.4L HEMI LOL

I'd rather do that than invest in an old mill that is too expensive on fuel to drive very far.