This is topic HELP!! Oil Filter Issue!! in forum Tech Talk at Northern California Ford Owners  .


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Posted by T-TopTerror (Member # 480) on :
 
Ok I am in the blind here. I have only found one other post on the net about this and there wasnt an answer posted.

I have a 351 in my fox. Engine code is rubbed off so its a 74/84/94 I assume out of a truck.

It took every trick in the book to remove the oil filter off of the block. I tried to spin the NEW FL-1 on and I only get about .5-1 turn before it binds. Then it will take some serious effort to install the new filter. WTF?

My guess is maybe the post was replaced. No wear marks indicate as such and the threads arent "gummed" up either so I am sitting here scratching my head. Car is on jacks an need to figure this out quick. Please help!

I mic'd the OD of the post, inside the threads, @ 19mm
Thread pitch seems the same as the FL-1 but ID on that is 17.5mm

HELP!!!
 
Posted by 5.0 LsX (Member # 10017) on :
 
what year is the block? they changed oil filters in 94'
 
Posted by T-TopTerror (Member # 480) on :
 
Do u know what they changed it too?
 
Posted by 5.0 LsX (Member # 10017) on :
 
i work at napa so our pn is 1372, or wix brand 51372
 
Posted by partsbob67 (Member # 8836) on :
 
changed to an fl820s motorcraft.
 
Posted by dirty money inc (Member # 7277) on :
 
quote:
Originally posted by partsbob67:
changed to an fl820s motorcraft.
fl820 is the same as a fl1a just have the size
 
Posted by partsbob67 (Member # 8836) on :
 
nope. a fl820 has differnt threads. a fl300 is the same as a fl1a just shorter.
 
Posted by T-TopTerror (Member # 480) on :
 
The verdict:
So after some much needed math and research I determined I MUST have the correct one in there. So even tho the threads LOOKED fine, I decided to start filing them from the start since thats where the problem was occurring. Well after a pretty good clean up of the first 3 threads, the filter had a tight spot but spun on good after that. Problem solved [Smile]

Thanks for all your advice guys.
 




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