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RE: FW: Spit oil filters revisited (& coolant drainage / flush)

To: "'nolan penney'" <npenney@erols.com>
Subject: RE: FW: Spit oil filters revisited (& coolant drainage / flush)
From: "Ginter, G M (Michael)" <GinteGM@LOUISVILLE.STORTEK.COM>
Date: Tue, 18 Mar 1997 12:00:14 -0700
Cc: "'triumphs@autox.team.net'" <triumphs@Autox.Team.Net>
I tip my hat to you sir.  For you certainly are Sir Filter Expert.

Thanks for the advice.  I had planned to do exactly that (or buy a 5/8" X 3/4" 
adapter).

Mike
79 Spit 

----------
From:   nolan penney[SMTP:npenney@erols.com]
Sent:   Tuesday, March 18, 1997 1:27 PM
To:     Ginter, G M (Michael)
Cc:     triumphs@autox.team.net
Subject:        Re:  FW: Spit oil filters revisited (& coolant drainage / flush)

>That, BTW is why I had such problems.  The adapter I do have is 5/8" X 5/8".
>And I have no idea which filter will fit this adapter either.

The problem is really and truly just a mole hill, and not a mountain.

Take said adapter with you to a decent sized auto parts store that has a good 
book on filters.  My 
recommendation is the A/C filter book hanging by the filters.  It helps to also 
have a little note pad and 
a pencil

Flip to the back of the a/c filter book and you will find all their filters 
listed two ways, one is by 
name, the other by size (being height actually)  In these listings they give 
all the dimensions of the 
filters, including screw threads and significant notes.  Scan down until you 
find a filter that seems to 
have the proper thread.  Pull it off the shelf and screw the adapter into it to 
make sure it fits right.  
If it doesn't, try a different thread pitch until you find the right one.  
Remember what that right type 
is.

Ok, that's the hard part.  Now that you've positively identified the thread 
pitch, you want to find a 
filter that actually fits onto the engine.  That's easy.  Go to the front of 
the book and look up your 
car.  It'll give a particular filter.  The significance here is gasket size.  
You want a filter that will 
seal up against the boss on your block.  All right, now go back to the book 
section where you can look up 
filters by name and find that particular one that A/C thinks will fit your 
engine.  Note the dimensions 
and that special note they give (I believe for a Spitfire it's note 50, having 
to do with anti-drain 
valve and something to do with pressure).  Look down the list of filters there 
until you find one that has 
your thread specs, roughly the same gasket diamter, a different package size 
(smaller or larger) and the 
same special note.  You'll find several actually.  Take them out of the box and 
compare then for fit (as 
in do you really want that super skinny PF40 through 44, or would you rather 
have that really huge PF-1?). 
You can hold them up to one another to decide if the gasket matchup is close 
enough too. They all fit 
actually, and work properly.  As well roughly a dozen other variations.  At 
least on my Spitfire with the 
normal adapter that is.

So, now you know which filters will fit, and that you can put several different 
ones on there to get the 
effect your after (smaller for easier installation, larger for more 
filtration). You are then knighted Sir 
Filter Expert, and can pick and chose filters to your hearts content.  This 
will result in immedate desire 
to investigate switching the tiny filter on say a Toyota Pickup into a 
substantially larger filter.  And 
the burning desire to see if a slightly smaller filter can be found for a 
certain Honda CRX so that it 
will fit down behind the intake manifold from the top.  

Never again will you be limited by engine manufacturer recommendations on 
filter selection!




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