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Spin on oil filter flow direction?
Posted: Wed May 08, 2002 8:55 am
by Art King
Bob,
I have a spin-on oil filter adapter that came with my TC when I bought
it in '91. How would I be able to tell whether the oil is flowing in the
correct direction without seeing whether it has the internal
cross-drilling?
Thanks,
Art King
TC 3944
Re: Spin on oil filter flow direction?
Posted: Wed May 08, 2002 9:15 am
by Robert Grunau
Hi Art,
Remove the top center banjo bolt and see if it is drilled straight through
down the middle. If yes, then not cross drilled. Also you could remove the
spin-on filter and crank the engine to see where the oil exits the adapter
( it should be the side ).
Some early spin-on adapters ( not mine ! ) had a brass 3/4" threaded nipple
to hold the spin-on filter. In some cases these brass nipples were held in
place in the adapter with a simple set screw. Bad practise. I know of at
least two filter failures where the nipple pulled out of the housing
dropping the spin-on filter on the road. Instant loss of oil pressure!!
These early adapters also had the banjo bolts thread directly into the
aluminum housing.
My adapters have a threaded steel boss with 1" hex head which threads into
the aluminum adapter, loctited and torqued to 90 ft-lbs torque. Also I use
steel inserts to accept the banjo bolts. These inserts are threaded into the
aluminum adapter,.loctited and torqued to 90 ft-lbs. This means your filter
and banjo bolts are threaded into steel so if being removed there is no
wear. The thread into the aluminum housing is never disturbed.
Regards, Bob Grunau
Bob,
I have a spin-on oil filter adapter that came with my TC when I bought
it in '91. How would I be able to tell whether the oil is flowing in the
correct direction without seeing whether it has the internal
cross-drilling?
Thanks,
Art King
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Re: Spin on oil filter flow direction?
Posted: Wed May 08, 2002 11:35 am
by Dave Norris
Bob/Art et al,
I also bought my TC in '91 and it also came with a spin-on adaptor. It's
sand-cast, as opposed to the current machined variety. Does anyone know who
made these?
Cheers,
Dave
TC9964
Sunny Aberdeen
----- Original Message -----
From: "Robert Grunau" cgrunau@pathcom.com>
To: "Art King" aek0@lehigh.edu>; mg-tabc@yahoogroups.com>
Sent: Wednesday, May 08, 2002 4:04 PM
Subject: RE: [mg-tabc] Spin on oil filter flow direction?
> Hi Art,
> Remove the top center banjo bolt and see if it is drilled straight through
> down the middle. If yes, then not cross drilled. Also you could remove the
> ........>
> Bob,
> I have a spin-on oil filter adapter that came with my TC when I bought
> it in '91. How would I be able to tell whether the oil is flowing in the
> correct direction without seeing whether it has the internal
> cross-drilling?
>
Re: Spin on oil filter flow direction?
Posted: Wed May 08, 2002 11:47 am
by Art King
Dave,
I haven't had a close look in a couple of weeks (but will tonight after work)
but I think it was sand-cast and then some machining done to smooth out some of
the rough spots. As I recall back then Phil Marino was making them, but my
memory may be faulty. I also know that the previous owner had most of his work
done at M&G in New York, but don't know if they produced the spin on converter.
I know that there are no identification markings on it.
Art
Dave Norris wrote:
> Bob/Art et al,
> I also bought my TC in '91 and it also came with a spin-on adaptor. It's
> sand-cast, as opposed to the current machined variety. Does anyone know who
> made these?
> Cheers,
> Dave
> TC9964
> Sunny Aberdeen
> ----- Original Message -----
> From: "Robert Grunau" cgrunau@pathcom.com>
> To: "Art King" aek0@lehigh.edu>; mg-tabc@yahoogroups.com>
> Sent: Wednesday, May 08, 2002 4:04 PM
> Subject: RE: [mg-tabc] Spin on oil filter flow direction?
>
> > Hi Art,
> > Remove the top center banjo bolt and see if it is drilled straight through
> > down the middle. If yes, then not cross drilled. Also you could remove the
> > ........>
> > Bob,
> > I have a spin-on oil filter adapter that came with my TC when I bought
> > it in '91. How would I be able to tell whether the oil is flowing in the
> > correct direction without seeing whether it has the internal
> > cross-drilling?
> >
Re: Spin on oil filter flow direction?
Posted: Wed May 08, 2002 12:03 pm
by David & Joyce Edgar
Phil Marino's oil filter adapters were machined from solid stock and
not sand cast. Phil also cross drilled his adapters and as an added
feature drilled TWO passages from the top center to make sure there
was enough oil flow.
David Edgar, TC 5108
El Cajon, California
At 2:47 PM -0400 5/8/02, Art King wrote:
>I think it was sand-cast and then some machining done to smooth out some of
>the rough spots. As I recall back then Phil Marino was making them, but my
>memory may be faulty.
Re: Spin on oil filter flow direction?
Posted: Thu May 09, 2002 1:20 am
by Eric Worpe
Hi Dave,
Some of the cast oil filter adaptors were made by
Ray Sales in Bracknell, UK. The oil flow through
the element was in the wrong direction, which was
potentially harmfull if the screw on filter had a flap
valve ( to prevent drain back ). Such a valve would
prevent oil flow through the filter and the oil gallery
would be fed via. the oil filter by-pass valve instead.
Regards, Eric.
Re: Spin on oil filter flow direction?
Posted: Thu May 09, 2002 8:19 am
by i.thomson@talk21.com
I find this thread very interesting and, having an original housing modified to take a replacement oil filter I am wondering if these filters are designed to feed from the centre or the middle. I have not had any problems with it in 12 years, apart from wondering if the clearances within the housing might be losing me oil pressure. Has anyone any thoughts on this?
Ian Thomson
----------
> Hi Art,
>Remove the top center banjo bolt and see if it is drilled straight through
>down the middle. If yes, then not cross drilled. Also you could remove the
>spin-on filter and crank the engine to see where the oil exits the adapter
>( it should be the side ).
>
>Some early spin-on adapters ( not mine ! ) had a brass 3/4" threaded nipple
>to hold the spin-on filter. In some cases these brass nipples were held in
>place in the adapter with a simple set screw. Bad practise. I know of at
>least two filter failures where the nipple pulled out of the housing
>dropping the spin-on filter on the road. Instant loss of oil pressure!!
>These early adapters also had the banjo bolts thread directly into the
>aluminum housing.
>
>My adapters have a threaded steel boss with 1" hex head which threads into
>the aluminum adapter, loctited and torqued to 90 ft-lbs torque. Also I use
>steel inserts to accept the banjo bolts. These inserts are threaded into the
>aluminum adapter,.loctited and torqued to 90 ft-lbs. This means your filter
>and banjo bolts are threaded into steel so if being removed there is no
>wear. The thread into the aluminum housing is never disturbed.
>Regards, Bob Grunau
>
>Bob,
>I have a spin-on oil filter adapter that came with my TC when I bought
>it in '91. How would I be able to tell whether the oil is flowing in the
>correct direction without seeing whether it has the internal
>cross-drilling?
>
>Thanks,
>Art King
>
>
>
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