Offshoreonly.com - need help on oil filter/adapter block off for gen iv to vi 454

Quote:

Originally Posted by Ghostrider (Post 2914055)

The Canton adaptor plate is the best one out there (IMO). You can get it with the 3/8" thread as well to suit stock lines / hoses, or conversely, get the 1/2" one and use a step down adaptor to the stock lines so you don't have to upgrade the adaptor when you upgrade everything else later.
The MkIV block adaptors aren't the same, you need Gen a VI one.

Tafischer: If you like those new motors of yours, do not put them anywhere near a standard oiling system. They'll already have HV / HP Oil pumps in them (I'd hope) and the stock system won't cut it at all. Upgrade Everything to 1/2" fitting and AN-12 lines, get a pair of big Hardin Coolers and I'd also run Canton Mk IV plate with an Oil Thermostat.

Let us know if you need any more info.
For evidence or reasons, search for 'Oil Pressure problems from stock hardware.'

Good Luck!

why stop there ? since the clearences in the oiling system haven't changed and at another 25 hp, the unit loads on the oil film haven't changed just to be safe i think you run at least THREE hi volume oil pumps simultaneously along with at least dash 32 lines... and dash 50 would be better. that way you could simply leave the oil pan off completely because the lines would hold 12 quarts.

geeze. why is it that more of everything is always better ? do you really think that all the thousands and thousand s and thousands of motors that are built by companies that employ real engineers with real degrees that actually understand the fluid dynamics and hydraulics that make up an oil system are all wrong ? that they just sit there and churn this stuff out with all the wrong sized everything so that they can fail ? it is a ridiculous notion. design the oil system for what it is. not some hot rod magazine fairy tale. the oil pump is a positive displacement device.... it pumps the same volume every time it rotates. the motor has certain clearences from which the oil bleeds out. the difference in the two is the pressure you see on the gage. if you double the pump volume and leave the cleances the same, one of two things will happen... either the relief valve will be open non stop or it will explode the oil filter if the relief isn't adequate... as for line size... i know its a terrible thing when an ugly fact conspires to ruin a perfectly good piece of folklore and voodoo but if you simply look at the published figures for these oil pumps as far as gals per hour at x rpm at y pressure and then have a quick look at the flow rates of various sized lines and fitting assemblies you might be shocked SHOCKED to discover that a 3/8 line has roughy twice the maximum flow rate at pressure as required by the pump at MAXIMUM. so if you spun the motor at twice the rpm its ever going to seee you might just be getting into an area of concern.

and frankly... it you think you are blowing up motors because your oil lines were too small then you are dreaming. you are blowing up motors because someone did something wrong that had nothing at all to do with the basic oil system components.

most probably giant bearing clearences because everybody
" knows " that marine motors are like nothing else ever built anywhere on earth and everthing inside them is just magic and has to be ever ever so special and different.

just being correct isn't good enough.