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Old 10-26-2015, 09:09 PM   #21
Bill Stipe
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Default Re: Stipe Oil Pump

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I have an A engine that I use for touring that I built a couple of years ago. I inserted the bearings and a few other things including pressure feeding the middle main bearing. I made and fitted a pressure relief valve to maintain 25 psi to it. The engine has proved to be EXCELLENT and very reliable. I am now starting to project to build another like it but I find that the Stipe oil pumps like I used in the first engine are not available. I know the instructions with the inserts say that the original oiling system is adequate but I cruise at about 50 mph with a camper trailer behind. The engine is working hard and I MUST have reliability so I want to pressure that main bearing.
Does anybody know where I can get one of those pumps and as an alternative, what other pump can be grafted in. Will a brand new A pump do the job? What modifications would be required to it? I wonder whether it can be made to work by restricting the flow into the top of the motor to up the pressure but I wouldn't want to restrict it too much - how much is good?
I've heard that an oil pump from a V8 engine can be made to work but they are as scarce as rocking horse crap here. What modifications are needed? Does somebody do it and able to sell a completed unit? What are the chances of buying a V8 oil pump?
Any other suggestions??
Sorry to say the Stipe oil pumps are back ordered. My son Tony and his crew are still working on camshafts and do have the oil pumps and alum flywheels on back order. it's been real hard to regain ground when we went from a 5 man shop to a 3 man shop as 2 guys retired one 28 years and the other 26 years. you just don't replace that many years of experience. they will keep on it but I can't say when they will be back on the shelf.
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Old 10-27-2015, 03:45 AM   #22
BRENT in 10-uh-C
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Default Re: Stipe Oil Pump

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Brent,
Please let me preface this with I respect your opinion and you make a good point. It has never ceased to amaze me how motors in the trucks you mentioned lasted as long as they did.
Now here comes the "BUT".
We all know that the middle main bearing is the weak link in these motors (and other 4 cylinder,3 main bearing engines). So here's my reasoning: It is also well known that the bottom end of modern engines is much more durable than they were in those days. Inserted bearings, oil filters, better oil, more bearings and pressurised bearings all play their part in that. I can't change the number of bearings so oil pressure is the only thing I wouldn't have if I didn't modify. I have pressurised the bearing in my other engine and had good results. I am wanting to use the same winning formula again this time. (When you're on a winner, stick to it!)
For solo car touring, I wouldn't go to the trouble of pressure feeding the bearing.
This is not a criticism of your comment or knowledge (much greater than mine). I'd welcome your further input.
Not sure it is really a 'weak link', --AND not so sure that pressurizing the center main is the only thing that makes it a winner. Many center mains fail because the crankshaft was incorrectly ground. In addition, poor babbittting techniques account for a lot of failures. Again, don't overlook the capability of a rebuilt stock oil pump. You likely will be surprised of how much volume, -and pressure they are capable of.
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Old 10-29-2015, 09:47 PM   #23
Bill Stipe
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Maybe it is time to come out of retirement?
LOL, hey Vince you missed my face book video, I actually worked for one week in Wisconsin about 2 weeks ago rough grinding center bearing on A-B cams so they can come down here in about 2 more weeks for me to cut the gears and rough grind the lobes. than off the heat treat!!
I will have to keep you more up dated I see!! LOL I don't want to get too rusty!
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Old 03-01-2020, 04:21 PM   #24
M2M
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Hey Synchro,
About 10 or more years ago, I used a Stipe custom aluminum pump, as you have done.
I agree with your 'reliability and bullet proof' wants and needs also and that's also why I use Bills pump. Today I used a V8 flathead pump ('46/'48 59A style) made by a 4E4 member and machinist. If you have Jim B book, his contact info is logged in the back of this book. He does EXCELLENT work and has done this mod forever (). Not expensive as others mentioned either ! You need a core for best deal though.
Today, WE spend hundreds of hours and THOUSANDS of $$$$ on an A/B engine that cost fifty odd bucks for stock engine back when. So, we have reason to do the best job for bang for buck, peace of mind and longevity,eh ! Give us some pictures of your build and of your trip when it happens, thanks. Sounds like you are having fun with your/our hobby !
BTW, with the variety of oil pumps made today with lower prices and good craftsmanship, I would not spend the large sum (to me) for another alum pump. Darn good pump though. It is good to have choices !!
Bringing this thread back to life.

Who is Jim B? Anyone have his contact details?
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Old 03-01-2020, 04:31 PM   #25
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Default Re: Stipe Oil Pump

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Bringing this thread back to life.

Who is Jim B? Anyone have his contact details?
Jim Brierly (Spelling?) - a well known on the forums guru engine builder who has campaigned Model A and B engines on the salt flats etc for years.
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Old 03-01-2020, 04:47 PM   #26
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Jim Brierly (Spelling?) - a well known on the forums guru engine builder who has campaigned Model A and B engines on the salt flats etc for years.


Ah, of course! Sorry Jim
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Old 06-03-2020, 11:58 AM   #27
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Default Re: Stipe Oil Pump

Hello
I have one of Dans oil pumps and want to lower the pressure, does anyone know
how to do this? we have 70lbs and want to lower it as oil is being forced out some of the bolts on the side of the engine , the engine has an overhead on it
Thanks Dennis
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Old 06-03-2020, 07:06 PM   #28
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Default Re: Stipe Oil Pump

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Hello
I have one of Dans oil pumps and want to lower the pressure, does anyone know
how to do this? we have 70lbs and want to lower it as oil is being forced out some of the bolts on the side of the engine , the engine has an overhead on it
Thanks Dennis
Those pumps have an adjustable regulator built in. It is calibrated also. Just dial the pressure you want.
You might want to seal the bolts with O-rings rather than lowering the oil pressure any more.
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