GMCforum
For enthusiast of the Classic GMC Motorhome built from 1973 to 1978. A web-based mirror of the GMCnet mailing list.

Home » Public Forums » GMCnet » [GMCnet] Spin on trans filter opinions sought
[GMCnet] Spin on trans filter opinions sought [message #141907] Wed, 31 August 2011 20:08 Go to next message
Russell Mehlenbacher is currently offline  Russell Mehlenbacher   United States
Messages: 128
Registered: June 2010
Karma: 1
Senior Member
My trans cooler system (PO installed) looks impressive enough. Radiator
loop, big cooler out front, spin on filter, Ragusa pan, & remote vent.
Despite all that, we put two quarts of fluid down the side of the coach
during the hottest and fastest part of our 'round Lake Michigan trip. My
pre Goshen plans include reviewing line size and route, dropping the pan,
changing the filter (watch out for that pickup angle!), checking calibration
of the dipstick, installing a gauge & overflow bottle, and finding a real
spin on filter. At present there is a Fram P3317 on there, not a full flow
filter.
Who has an opinion on trans filters?

Thanks,
Russ

--
Russ & Linda Mehlenbacher
Rochester Hills, MI
'74 X-Sequoia
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist



Russ & Linda Mehlenbacher
Rochester Hills, Michigan
'76 Eleganza
'74 Sequoia
Re: [GMCnet] Spin on trans filter opinions sought [message #141912 is a reply to message #141907] Wed, 31 August 2011 21:05 Go to previous messageGo to next message
C Boyd is currently offline  C Boyd   United States
Messages: 2629
Registered: April 2006
Karma: 18
Senior Member
Russell Mehlenbacher wrote on Wed, 31 August 2011 21:08

My trans cooler system (PO installed) looks impressive enough. Radiator
loop, big cooler out front, spin on filter, Ragusa pan, & remote vent.
Despite all that, we put two quarts of fluid down the side of the coach
during the hottest and fastest part of our 'round Lake Michigan trip. My
pre Goshen plans include reviewing line size and route, dropping the pan,
changing the filter (watch out for that pickup angle!), checking calibration
of the dipstick, installing a gauge & overflow bottle, and finding a real
spin on filter. At present there is a Fram P3317 on there, not a full flow
filter.
Who has an opinion on trans filters?

Thanks,
Russ

--
Russ & Linda Mehlenbacher
Rochester Hills, MI
'74 X-Sequoia
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist











Sir: I believe if you park on a level surface at operating temp. Shut it off and put a drain pan under the modulater valve, clean the area and remove it, let the excess drain till it quits and replace modulater valve. This should put you where you should be. Mark the dipstick after checking when running. I have an Allison auto in a KW that holds 44 qts. one qt over full caused the tranny temp to rise drasticaly and seems to expand the fluid more and puke it out the overflow. It pukes out more than the one qt till cool then it ends up checking low.


C. Boyd
76 Crestmont
East Tennessee
Re: [GMCnet] Spin on trans filter opinions sought [message #141925 is a reply to message #141912] Wed, 31 August 2011 22:43 Go to previous messageGo to next message
Russell Mehlenbacher is currently offline  Russell Mehlenbacher   United States
Messages: 128
Registered: June 2010
Karma: 1
Senior Member
More info:
It did puke enough to leave us unable to move with out waiting for fluid to
get into the right places...It had been perfectly fine for the last 6000
miles, but then we had never driven in any higher temps.
I think the first order of business might be to get the sender in the out
line and try to get some baseline temp data. I can't duplicate the air temps
we had, but I can at least go for a joy ride... and then check the level and
modulator integrity (shifts fine when filled per dipstick).

Russ & Linda Mehlenbacher
Rochester Hills, MI
'74 X-Sequoia
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist



Russ & Linda Mehlenbacher
Rochester Hills, Michigan
'76 Eleganza
'74 Sequoia
Re: [GMCnet] Spin on trans filter opinions sought [message #141932 is a reply to message #141907] Wed, 31 August 2011 23:43 Go to previous messageGo to next message
USAussie is currently offline  USAussie   United States
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
Senior Member
Russ,

Please advise the flow path of the lines to / from the radiator and where the transmission fluid filter is located.

The Blue Streak's PO installed a remote transmission fluid filter; I'll check it tomorrow and let you know the brand of filter and
the flow path.

Regards,
Rob M.

-----Original Message-----
From: Russell Mehlenbacher

My trans cooler system (PO installed) looks impressive enough. Radiator
loop, big cooler out front, spin on filter, Ragusa pan, & remote vent.
Despite all that, we put two quarts of fluid down the side of the coach
during the hottest and fastest part of our 'round Lake Michigan trip. My
pre Goshen plans include reviewing line size and route, dropping the pan,
changing the filter (watch out for that pickup angle!), checking calibration
of the dipstick, installing a gauge & overflow bottle, and finding a real
spin on filter. At present there is a Fram P3317 on there, not a full flow
filter.
Who has an opinion on trans filters?

Thanks,
Russ


_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist



Regards, Rob M. (USAussie) The Pedantic Mechanic Sydney, Australia '75 Avion - AUS - The Blue Streak TZE365V100428 '75 Avion - USA - Double Trouble TZE365V100426
Re: [GMCnet] Spin on trans filter opinions sought [message #141946 is a reply to message #141907] Thu, 01 September 2011 06:46 Go to previous messageGo to next message
g.winger is currently offline  g.winger   United States
Messages: 792
Registered: February 2008
Location: Warrenton,Missouri
Karma: 0
Senior Member
Rob,,,,don't know if this is in the service manual. But,,,,the closest fitting to the tq. converter(closest to the center of the vehicle)is the out and the farthest to the left side of the tranny(or the other one) is the in.,,,PL
Re: [GMCnet] Spin on trans filter opinions sought [message #141973 is a reply to message #141946] Thu, 01 September 2011 10:06 Go to previous messageGo to next message
USAussie is currently offline  USAussie   United States
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
Senior Member
Paul,

Glad you mentioned this; I probably would have forgotten to check the MM before I headed for the shop tomorrow.

It is in the Maintenance Manual.

MM: X-7525
Page: 7-25
Figure 13 - Oil Cooler and Lines

Thanks,
Rob M.

-----Original Message-----
From: Paul Leavitt

Rob,,,,don't know if this is in the service manual. But,,,,the closest fitting to the tq. converter(closest to the center of the
vehicle)is the out and the farthest to the left side of the tranny(or the other one) is the in.,,,PL


_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist



Regards, Rob M. (USAussie) The Pedantic Mechanic Sydney, Australia '75 Avion - AUS - The Blue Streak TZE365V100428 '75 Avion - USA - Double Trouble TZE365V100426
Re: [GMCnet] Spin on trans filter opinions sought [message #142001 is a reply to message #141973] Thu, 01 September 2011 15:21 Go to previous messageGo to next message
Russell Mehlenbacher is currently offline  Russell Mehlenbacher   United States
Messages: 128
Registered: June 2010
Karma: 1
Senior Member
I was re-reading the things I'd read so long ago, and found this on
http://gmcmotorhome.info/transmission.html#DIP
The dipstick tube is part of the vent system for the tranny, so on the front
access tubes, they MUST NOT be sealed off with the new type expanding seal
dipstick. One way to vent this would be to braze a small, goose-neck tube
onto the top-side of the dipstick tube, down from the stick seal, to make a
weather proof vent. Happy GMCing......Bob D

I have one of those expanding plug type sticks, and did leave it loose after
the second fluid refill.
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist



Russ & Linda Mehlenbacher
Rochester Hills, Michigan
'76 Eleganza
'74 Sequoia
Re: [GMCnet] Spin on trans filter opinions sought [message #142064 is a reply to message #142001] Thu, 01 September 2011 23:04 Go to previous message
USAussie is currently offline  USAussie   United States
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
Senior Member
Russ,

Double Trouble has one of the remote trans fill dipsticks.

When I read this info I agreed (naturally) that it should be vented and decided drill a hole in the tube below where the o-ring
seats.

Got out my trusty Harbor Freight drill and proceeded to drill the hole in the bottom of the tube at 6:00 because I didn't want water
getting in from the top!

I started the engine and let it run for a minute or so and checked the fluid, hmmm, a bit low.

Got the long skinny funnel and stuck it in the dipstick tube and poured a bit of fluid in!

Two seconds later I noticed the trans fluid running out the hole I had just drilled!

DOUH!

Put a piece of duct tape over the hole and added the fluid, then pulled the tape off.

Sitting here typing this I realized that water can still get in with the hole at 6:00 and it might be worse there than on top
because the water that hits the top of the tube will have a tendency to run down to the 6:00 position!

DOUBLE DOUH!

Looks like I'll be brazing the hole up and following Bob Drewes suggestion and make a goose neck vent!

Regards,
Rob M.


-----Original Message-----
From: Russell Mehlenbacher

I was re-reading the things I'd read so long ago, and found this on

http://gmcmotorhome.info/transmission.html#DIP

The dipstick tube is part of the vent system for the tranny, so on the front
access tubes, they MUST NOT be sealed off with the new type expanding seal
dipstick. One way to vent this would be to braze a small, goose-neck tube
onto the top-side of the dipstick tube, down from the stick seal, to make a
weather proof vent. Happy GMCing......Bob D

I have one of those expanding plug type sticks, and did leave it loose after
the second fluid refill.


_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist



Regards, Rob M. (USAussie) The Pedantic Mechanic Sydney, Australia '75 Avion - AUS - The Blue Streak TZE365V100428 '75 Avion - USA - Double Trouble TZE365V100426
Previous Topic: roof top storage
Next Topic: for Dave S.
Goto Forum:
  


Current Time: Mon Oct 28 18:25:28 CDT 2024

Total time taken to generate the page: 0.01174 seconds