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In fixing a pulled stud and refreshing my top end, I had my oil pan off of my 1973 R75/5.

It has had a deep sump since I have owned it. It appears that the oil pick up was extended to the bottom of the oil pan. But, it also appears that it HITS the oil pan. I can't imagine that this is desired.

Thoughts? What is the proper clearance between the pan and the pick up? 1/8" okay?

Photos here:

http://picasaweb.google.com/blaisedesco ... directlink

Looks like a "home-made" extension. Probably just made it too long. I can't imagine that the height is all that critical, but it can't be too high in case there's low oil and/or sloshing. Oil has obviously been able to get by despite it being that low. Oil's pretty thin...unless you're using the super viscosity stuff... 1/8" sounds fine...

Kurt in S.A.

Yes raise the oil intake 1/8th to 1/4

Frog wrote:In fixing a pulled stud and refreshing my top end, I had my oil pan off of my 1973 R75/5.

It has had a deep sump since I have owned it. It appears that the oil pick up was extended to the bottom of the oil pan. But, it also appears that it HITS the oil pan. I can't imagine that this is desired.

Thoughts? What is the proper clearance between the pan and the pick up? 1/8" okay?

Photos here:

http://picasaweb.google.com/blaisedesco ... directlink

What kind of deep sump is it (edit: I see from your picture it isn't a Mac, but this may be relevant to others)? If it's the Mac type that works with the old style center stand, then it does touch the pan in one corner. On this style the extention uses 4 bolts and rotates the pick-up slightly to clear the "cut out" in the sump that goes round the centerstand cross bar. The pick up will be at a slight angle to the bottom of the pan, close to touching on one side and about 1/4" off the bottom on the other.
Be careful when you bolt the pick-up back on. My friend's bottom end was ruined when the bolts backed out and the pick up fell off. When I rebuilt it, I used high temp lock tight and drilled holes in the top of the bolts to wire them.

mattcfish wrote:

Frog wrote:In fixing a pulled stud and refreshing my top end, I had my oil pan off of my 1973 R75/5.

It has had a deep sump since I have owned it. It appears that the oil pick up was extended to the bottom of the oil pan. But, it also appears that it HITS the oil pan. I can't imagine that this is desired.

Thoughts? What is the proper clearance between the pan and the pick up? 1/8" okay?

Photos here:

http://picasaweb.google.com/blaisedesco ... directlink

What kind of deep sump is it (edit: I see from your picture it isn't a Mac, but this may be relevant to others)? If it's the Mac type that works with the old style center stand, then it does touch the pan in one corner. On this style the extention uses 4 bolts and rotates the pick-up slightly to clear the "cut out" in the sump that goes round the centerstand cross bar. The pick up will be at a slight angle to the bottom of the pan, close to touching on one side and about 1/4" off the bottom on the other.
Be careful when you bolt the pick-up back on. My friend's bottom end was ruined when the bolts backed out and the pick up fell off. When I rebuilt it, I used high temp lock tight and drilled holes in the top of the bolts to wire them.

My pickup extension was loose when I removed the sump. It's gone back together with a fresh spot face where the screw heads sit and copious high-temp Loctite. PO probably had no difficulty because he was using the OG short dipstick and 'full' was above the cast in portion of the pickup.