wayne fields

[wayne fields]

hi people. I have a 239 merc motor , I ordered a new oil pump and received a short type rated at 80 psi. instead of a 50psi long type . question is , could I fit this to my motor in place of the old 50lbs one? if so would I have to change the pressure relief valve spring in the block. also I wish to use the existing original oil gauge and sender if possible, it is in a 1938 81c pickup. thanks wayne.

[JM 35 Sedan]

The oil pump I usually use for 221 and 239 FH engines is the Melling #M19 standard volume pump for '49-'53 Ford/Merc, with a '49-'53 truck #6615 pump cover and inlet tube for rear sump oil pans. This is considered to be a short pump compared to the pumps used on earlier FH engines. I would not recommend using the Melling #M-15 high volume/high pressure pump unless you are building a race engine with loose tolerances.

[russcc]

Good recommendation by Jim. See Ron's book nostalgia about the extra heat a hi pressure pump creates. You can get the M#19 from Job Lot in NY. Still made in the USA.

[Mike in AZ]

welcome to the 'Barn....hopefully you'll get things figured and your pickup on the road....got pics???...lol....Mike

[wayne fields]

thanks chaps , pics yes ,but will have to do more study to get them where they are supposed to go computers and me don't always seem to be on the same wave length. perhaps in another 70 odd years I might master it, thanks wayne.

[ford38v8]

Sponsored Links (Register now to hide all advertisements)

Wayne, if you have a pic on the computer, you're almost there.
1- Type a message and hit the "Go Advanced" button.
2- Scroll down to Additional Options and hit the "Manage Attachments" button.
3- Hit any "Choose File" button from the pop-up window.
4- From the next pop-up window, select the location of your computer that contains the picture.
5- Click on the title of the pic from the next menu.
6- Hit the "Choose" button.
7- Back at the first pop-up, the title of the pic will be in the window, so hit the "Upload' button.
8- Back at the message you wrote, click the ""Preview Post" button.
You'll then see your message together with the picture you selected.
All that is left is to review the post and make any changes, then hit the "Submit" button.

[BillM]

if so would I have to change the pressure relief valve spring in the block.

The spring in the block should be equal to or greater tension than the one in the pump.

[wayne fields]

thanks Bill, regards Wayne.