ericcer

I have the Moroso oil filter adapter p/n #23690 to use with my Canton Accusump and noticed that it does not have the oil pressure relief (bypass) valve in it like the stock one. Is this something to worry about? I am running a high volume oil pump in my 383.

Also this adapter uses a much larger oil filter. Does anyone know which one would fit?

comp

TRACKMAN2

i had a problem with this because because i had a accusump and a oil cooler the oil didn't feed thought the lines because it was going through the bypass so if it dosent have one its better.. on my 92 there is a peice that goes between the block and the oil filter i would gheck the gasket between them because i had one fail and the oil didn't even go out to the oil filter it just ran through this gasket an back up uinto the motor,,, resulting in the death of 383#3

ericcer

Thanks for the info. The Morso adapter looks to be a replacement on my 96. It uses two o-rings with that.

As for the filter. Can you just find one that matches up with the new adapter and be done with it?

0Doug@MorosoPerformance

You can use MOROSO oil filter 22460 or Fram PH13,TG13, HP4, AC PF35, WIX 51061, PUROLATOR L3004, or GM 6438384, 6437946, 6435679.

Slalom4me

The Moroso 23690 adapter moves the filter out from the block by 1-1/2".

The ACDelco PF35C is 5-1/8" overall (uncompressed gasket). This
is the filter I use with the OEM oil-to-water cooler that mounts
between the block and the filter of an L98. (I'm not sure of the
height of the cooler but believe it is similar to, or greater than the
Moroso adapter.) With a RR-style 7" pan, the filter/cooler
combination tucks nicely up out of harms way.

Regarding the elimination of the bypass. What max oil pressure do you
see (start-up or otherwise)?

Regarding Trackman2's comments. TM2, am I right in that you are
saying that in a low oil pressure situation, the oil from your accusump
fed back through the pump into the pan instead of forward through
the cooler lines to the bearings?

If so, then a low pressure check valve in the cooler circuit before the
tee for the accumulator would have kept the oil moving to the
bearings. However, ericcer only seems to be adding the adapter
and accumulator, without any other lines. In that case, there is no
easy way to add a check valve.

Oil filters may have anti-drainback valves (some better than others)
that could help the oil move in toward the bearings.

.

ericcer

The engine is out of the car but from what I remember the low oil pressure is about 40 psi.

This adapter replaces the OEM unit and is nearly the same height as stock. The stock unit is offset to allow room for the cats and the Morso unit has no offset. The Morso unit moves the filter more toward the engine side of the car since it is centered. I have a LT4, BTW.

Thanks for the filter list.

Slalom4me

Slalom4me fails reading comprehension.

TRACKMAN2. I see that you were describing something other than
the oil movement from the accumulator.

.

Slalom4me

Moroso 23690


One potential issue arising from eliminating the bypass is that
a filter may burst. Some filters are built more sturdily than others.
Other than awareness about the possibility, I have no info about
how much pressure is too much or which filters are better choices.

I am interested in the answers to your questions because when I
install my accumulators I may plumb them through a 23690 or I may
run them directly into an existing port in the block just to retain the
OEM cooler. I favour standard volume and pressure, so burst filters
are likely less of an issue for my situation as long as the filter is
changed early enough that it does not restrict flow.

(On my BBC car, the adapter eliminated the spin-on filter and
I use a Canton/Mecca cartridge unit.)

.

Umrswimr

Is there a block adapter like there is for the LS1? I'm not entirely comfortable with sandwich adapters for the reasons listed.

Slalom4me

Personally, my vote is that sandwich adapters can work adequately
for most purposes. I am only considering an alternative because I
want to retain my existing OEM oil cooler.

For another style of sandwich adapter, take a look at 96GS#007's
remarks about Police Package adapters

For the sake of discussion, an alternative to SBC sandwich adapters is
to tap into existing oil galley ports or create new ones.

On the L98, there is a port above the oil filter pad which is used
for the oil temperature sensor in '89. I believe this is tapped for
1/4-18 NPT. The port is present in earlier blocks and may remain
there for the LTx engines. 1/4 NPT is equivalent in size to -4 AN.

Here is an image from Rick Voegelin's book 'Engine Blueprinting'
(S-A Design, 1985). The image shows the sensor port as well as an
an AN fitting that has been added - possibly for a cooler or external
pump.



Another route is to the galley from the front of the block. Solid LT1
discusses this and then redvetracr mentions that aftermarket blocks
have provisions for this in the thread below.

Solid LT1's thoughts on plumbing to galley

.

ericcer

I was doing some reading and some of the oil filters have their own bypass valve in the filter to bypass if the filter element if it is very dirty.