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oil squirters to rod/piston/crank clearance

General engine tech -- Drag Racing to Circle Track

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John@RED
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oil squirters to rod/piston/crank clearance

Post by John@RED »

Hello, any advice about brass oil squirters being 0.04 away from piston and crankshaft counterweigh at BDC, and 0.04 away from rod leg at half stroke?
Can't really get it further away from crank, piston and rod, that's the half way from everything: is 0.04 enough in your experience? Thanks
mag2555
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Re: oil squirters to rod/piston/crank clearance

Post by mag2555 »

If something in the rotating assy is flexing enough that .040” gets eaten up then you have a motor that’s going to come apart on you anyway!
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allencr267
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Re: oil squirters to rod/piston/crank clearance

Post by allencr267 »

Well said!
But maybe metric?
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Tom68
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Re: oil squirters to rod/piston/crank clearance

Post by Tom68 »

John@RED wrote: Sat May 14, 2022 4:52 am Hello, any advice about brass oil squirters being 0.04 away from piston and crankshaft counterweigh at BDC, and 0.04 away from rod leg at half stroke?
Can't really get it further away from crank, piston and rod, that's the half way from everything: is 0.04 enough in your experience? Thanks
Would depend how they're mounted, if they vibrate from getting belted senseless with oil firing off the rotating assembly they could break, if they're a solid fittings mounted in the block no problem of course.
BCjohnny
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Re: oil squirters to rod/piston/crank clearance

Post by BCjohnny »

allencr267 wrote:But maybe metric?
My thoughts entirely

If he's missed the zero off and means 0.040" that's one thing, but if OP means 0.04 mm he's down to only 0.0016" (rounded)

He really needs to clarify to get any kind of meaningful answer
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John@RED
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Re: oil squirters to rod/piston/crank clearance

Post by John@RED »

Not metric, imperial! :D
I know that nothing shouldn't flex so much, but oil squirters jet is long and slim, so quite worried

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