Tearing apart a new high volume oil pump to do a few mods tonight and while taking a look at the bypass plug I noticed it’s stuck in at least an 1/8 inch from the cotter pin. Simple fix but one that needs addressed.
Check your parts boys and girls
- Thread starter pittsburghracer
- Start date
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That's the latest 500# pump.
moper
Well-Known Member
Yeah happens fairly regularly.
I had one on my old 408 that ran 9.74 that had a bypass sticking and my oil pressure with 10-30 Brad Penn went up to 130 pounds of pressure after I launched. Thank God I had a Wix filter on and not a Fram and thank God I caught it on my racepak read out. That could have gotten ugly real fast.
The cotter pin retains it so it should be seated against the cotter pin. I’ve never seen one but I’ve heard they have even installed them backwards before.
Wow, how low can you go? LOL
The thing is, this is nothing out of the ordinary for a top notch or professional engine builder. Every single part should normally be checked and double checked. It's all part of the process. Much the same as checking and measuring behind your machinist. I never just "throw" something together. I did when I was a kid and got lucky a lot because I never had a problem, but I've found similar things to this pump when I started really paying attention.
production shop floor quality... where is it???
cudamark
Well-Known Member
I think it has more to do with finding good competent help. People who are concerned about doing a good job and attention to detail. No business wants to sell defective parts. Once they do, and start getting returns/warranty replacements and complaints, their reputation will go down the tubes and people will stop buying their product.
When I buy something I almost expect to do some touch up and fitting work. It has to be pretty bad for me to be-itch. Millwright work thought me everything needs some welding and fitting. Lol
Nice find. I take every new pump apart modify and clean. A friend of mine had a new pump full of machine filings. I usually replace the cotter pin with a dowel pin, I had a cotter pin shear off once and lost oil pressure.
gzig5
Well-Known Member
Quality costs money and most people aren't willing to pay a 50% premium for it. Some are. Processes that rely on human beings are fraught with uncertainty and mistakes will be made and get out the door. Even stuff that is made in US is just as susceptible. I've been in manufacturing my whole life and the folks that are doing low paid assembly work are not the rocket scientists you'd like them to be. There are exceptions, but most manufactures have trouble getting people to show up each day, and preferably sober. How many of those pumps would can be assembled before a person's mind goes numb and they don't care anymore? I don't trust anything I buy anymore whether is it Harbor Freight or made in USA.
A lot of truth. I have been in manufacturing also. Basically, there are 2 categories.
- Your product sells to the public
- You make a part that goes into the product sold to the public.
Well it took four drill step sizes to open it up to 1/2 inch. This is how mush dirt came out with the first drill
As luck would have it I drilled a hole in the cup thinking I had a replacement cup here and didn’t so a quick trip to town is needed. Made a quick 525.00 on the market today and now up to over 3000.00 February and March. Very time consuming but there’s money to be made daytrading. Hopefully have the shortblock done tomorrow. Race season is coming.
Charrlie_S
Well-Known Member
at one time the manufacturer had a quality control inspection of every single item. Then they went to "statistical" quality inspection. Now the customer is the quality control inspector. A lot cheaper for the manufacturer.
Bobzilla
Well-Known Member
That cup is steel, isn’t it? Weld it!
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