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#1
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![]() Kicking around putting an Accusump under the hood over the winter. One question that's bothered me is what happens when the oil filter is pressurized in the opposite direction when prelubing the engine prior to start-up. Do the pump gears create enough restriction to prevent just back-flushing trash out of the filter and pushing it back into the pan? Or, will the reverse pressure swell the internal filtering media and possibly weaken/damage it?
Am I over-thinking things, or just over worrying? Thanks for any constructive info. |
#2
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![]() Don't know/can't say if over thinking/worring too much. I did recall it should be pressureized @ normal running pressure, so had to take a look at my files. [My acculumulator is awaiting install too]:
![]() Could plumb directly to the oil galley. That gets it where you want it, but the pump could still be there. Covers the bearings for sure, maybe not the top end? Could be a little more work and chance for a WIAT* though... Cheers - Jim *"While-I'm-At-It"
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#3
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![]() [Only registered and activated users can see links. Click Here To Register...]
I was curious too. The PDF instructions show a check valve. Fig 2. [Only registered and activated users can see links. Click Here To Register...] Keep us updated on this upgrade. I'm interested to hear more. |
#4
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![]() Quote:
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#5
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![]() I have one installed and if you don't use any kind of one way valve, they oil flows backward.
To note is that the one way valve that Canton supplies is a serious restriction to oil flow. I ended up using a ford filter that prevents reverse flow. Works like a charm. Oh and connect the accusump in between the filter and as close to the block as possible.
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Opinions are like assholes, everyone has got one, but everyone thinks everyone else's stinks. |
#7
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![]() Forgot to mention that : a remote mounted filter.
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#9
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![]() I was curious how the cost of the accusump compares with a dry sump system, and according to this article it is roughly $500 compared to $3500. Ouch.
[Only registered and activated users can see links. Click Here To Register...] I just grabbed the kit cost from jegs for the accusump. A used pan and oil drive tank would probably drop the price of a dry sump a lot. |
#10
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![]() Found a couple filters with anti-drainback valves (according to the Summit website). The Wix 51060 and the AC 19187301 appear to be some parts to try. Just for amusement I think I'll e-mail Wix and ask if higher reverse pressures (during pre-lubing) cause any durability issues with the valve, and typically what is the forward pressure drop across the valve.
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