Posted By |
Discussion Topic:
Oil Filter restrictor
|
|
kubes40 |
09-17-2010 @ 9:44 AM
|
|
|
Senior
Posts: 3396
Joined: Oct 2009
|
You will have a drop in oil pressure if there is not a restricter in place somewhere in the oil line to the filter. Alan suggested soldering up a fitting and drilling to the proper diameter. that does in fact work well. I've done the same thing on clients vehicles. Factory spec was .055 - .060".
|
alanwoodieman |
09-17-2010 @ 8:44 AM
|
|
|
Senior
Posts: 868
Joined: Oct 2009
|
my 8CM engine filter has a restrictor scr*w*d into the side and I looked for other restrictions in the filter and found none. You can take a regular line fitting and braze up the center hole and then redrill to sizez indicated. I beleive silver solder would also be ok, but don't think I would use reguler solder. I was talking with a friend of mine and he said he drilled a BB and placed it in the line
|
37 Coupe |
09-17-2010 @ 7:46 AM
|
|
|
Member
Posts: 362
Joined: Oct 2009
|
I bought a NOS Genuine Ford restrictor from Dennis Carpenter several years ago and he may still have some. The restrictor is included in Ford part # O1A 18671 described as Kit (oil filter service) and green parts book shows this for one year only 1940 as the OIA prefix also identifies. The one I have a .059 number drill fits in. What I think occured was this,Fram supplied the oil canister for Ford in 1940,an OIA canister and it required this retro for dropped oil pressure,I have had a NOS O1A canister and outwardly looks like the later ones for 59AB engines but it is not the same as it will not mount correctly on a 59A or 59AB head,one of the upper mounting legs interferes with the extra bosses on the heads added temperature senders. So in other words if you have a canister that was already on a 59AB head you probably do not need a restrictor as this was corrected and restriction hole is internal on the two types of later Fram canisters,the early 46 one and the later 47-48 one that inlet was facing in ward toward carb and return would have been plumbed to oil dip stick boss.I do not know about later 49-53 canisters and have only looked at three I mention. An extra restrictor will not hurt but from what I see is not necessary on correct 59AB canisters.
|
kubes40 |
09-17-2010 @ 7:25 AM
|
|
|
Senior
Posts: 3396
Joined: Oct 2009
|
Hi Tom, The hole was .055" - .060".
|
51f1 |
09-17-2010 @ 7:14 AM
|
|
|
Senior
Posts: 573
Joined: Oct 2009
|
You can get one off of a junk engine. Contact one of the used parts suppliers in Hemmings.
Richard
|
tbloss |
09-17-2010 @ 6:51 AM
|
|
|
Member
Posts: 38
Joined: Oct 2009
|
I have a 59AB engine that the oil filter has been disabled by placing a rivit in the oil line to block the oil from going into the filter. I would like to use the filter, but need help on making or buying a restrictor. What size hole is in the restrictor and how do I go about making or finding one? Thanks, Tom...
|