Ragusa Final drive Cover Sensor Size

Allan Hamilton

Allan Hamilton

New member
Aug 25, 2008
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I am trying to find the size of the sensor plug in a Ragusa FD Cover. I put it on then decided to add a temperature sensor now that it is full of nice
new oil. Is it metric or SAE threads ??

No comments about planning ahead, please.
--
Al Hamilton,
76 Eleganza II,
Heart of the 1000 Islands, Ontario
 
It should be US pipe. Either 1/8" or 1/4" NPT.
Jim Hupy

On Sun, May 19, 2019, 3:42 PM Al Hamilton via Gmclist <

> I am trying to find the size of the sensor plug in a Ragusa FD Cover. I
> put it on then decided to add a temperature sensor now that it is full of
> nice
> new oil. Is it metric or SAE threads ??
>
> No comments about planning ahead, please.
> --
> Al Hamilton,
> 76 Eleganza II,
> Heart of the 1000 Islands, Ontario
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
 
Thanks Jim. I have a bunch of adapters. I can narrow the selection a lot and hopefully lose less oil until I find the right one.
--
Al Hamilton,
76 Eleganza II,
Heart of the 1000 Islands, Ontario
 
Al,

I'm pretty sure it's 1/8" NPT. I was about to offer to measure the
installed one tomorrow when I realized that you can do the same thing
yourself -- just put a mic (or dividers) on the now-installed plug and
compare that to a known item. Not much rooom for error.

Ken H.

On Sun, May 19, 2019 at 7:22 PM Al Hamilton via Gmclist <

> Thanks Jim. I have a bunch of adapters. I can narrow the selection a lot
> and hopefully lose less oil until I find the right one.
> --
> Al Hamilton,
> 76 Eleganza II,
> Heart of the 1000 Islands, Ontario
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
 
Why not just call Chase Ragusa and ask him?

johnny
--
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
 
The sensor is in !! I measured the exposed threads on the plug and called Ragusa. The hole size is 1/4" NPT and with a 1/8" NPT sensor in an adapter
all fit well. Only lost a small amount of oil changing the plug and sensor.

Thanks Jim, Ken, & Johnny
--
Al Hamilton,
76 Eleganza II,
Heart of the 1000 Islands, Ontario
 
Al,
Almost all GMC MH accessory are non metric.
I discourage people from using metric as you do not expect to see it .
Watch out on alternators and Torque convertors.

On Mon, May 20, 2019 at 12:45 PM Al Hamilton via Gmclist <

> The sensor is in !! I measured the exposed threads on the plug and called
> Ragusa. The hole size is 1/4" NPT and with a 1/8" NPT sensor in an adapter
> all fit well. Only lost a small amount of oil changing the plug and
> sensor.
>
> Thanks Jim, Ken, & Johnny
> --
> Al Hamilton,
> 76 Eleganza II,
> Heart of the 1000 Islands, Ontario
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>

--
Jim Kanomata
Applied/GMC, Newark,CA
jimk
http://www.appliedgmc.com
1-800-752-7502
 
It's sometimes useful to remember that GM issued a decree, IIRC in 1973,
that all NEW designs from 1974 on would be metric. SO, there was a long
period, including most of GMCMH production run, when "old" designs were
continuing to be produced, with "new" modifications -- in METRIC. Talk
about a mish-mash! And the world still suffers from a lot of that fiasco
-- but what else could they have done?

Ken H.

On Mon, May 20, 2019 at 6:55 PM Jim Kanomata via Gmclist <

> Al,
> Almost all GMC MH accessory are non metric.
> I discourage people from using metric as you do not expect to see it .
> Watch out on alternators and Torque convertors.
>
> On Mon, May 20, 2019 at 12:45 PM Al Hamilton via Gmclist <

>
> > The sensor is in !! I measured the exposed threads on the plug and
> called
> > Ragusa. The hole size is 1/4" NPT and with a 1/8" NPT sensor in an
> adapter
> > all fit well. Only lost a small amount of oil changing the plug and
> > sensor.
> >
> > Thanks Jim, Ken, & Johnny
> > --
> > Al Hamilton,
> > 76 Eleganza II,
> > Heart of the 1000 Islands, Ontario
> >
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
> >
>
>
> --
> Jim Kanomata
> Applied/GMC, Newark,CA
> jimk
> http://www.appliedgmc.com
> 1-800-752-7502
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
 
before you toss that plain steel cover search on youtube for a series of videos by Gale Banks where he scientificly analyzes aftermarket diff covers.
Almost all of them upset fluid dynamics and aerated the fuild, starved the pinion bearing, and wasted energy making it into heat. There is a reason
that ugly stamped cover is shaped as it is.
--
John Lebetski
Woodstock, IL
77 Eleganza II
 
I’ve seen that video... but has anyone ever experienced an issue with the Ragusa covers?

>
> before you toss that plain steel cover search on youtube for a series of videos by Gale Banks where he scientificly analyzes aftermarket diff covers.
> Almost all of them upset fluid dynamics and aerated the fuild, starved the pinion bearing, and wasted energy making it into heat. There is a reason
> that ugly stamped cover is shaped as it is.
> --
> John Lebetski
> Woodstock, IL
> 77 Eleganza II
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
 
The GMC rotates opposite of a rear drive. Cover is on opposite side.
The cover on our unit is designed to accommodate clearance of the front
steering .
These Ragusa covers have been running on our coaches since 1985 and have
never seen it cause pinion failure.
Having sold over 3,000 units, if there is a problem I would have heard
about it.

On Wed, May 22, 2019 at 7:38 PM Dave Stragand via Gmclist <

> I’ve seen that video... but has anyone ever experienced an issue with the
> Ragusa covers?
>
> > On May 22, 2019, at 9:22 PM, John R. Lebetski via Gmclist <

> >
> > before you toss that plain steel cover search on youtube for a series of
> videos by Gale Banks where he scientificly analyzes aftermarket diff covers.
> > Almost all of them upset fluid dynamics and aerated the fuild, starved
> the pinion bearing, and wasted energy making it into heat. There is a
> reason
> > that ugly stamped cover is shaped as it is.
> > --
> > John Lebetski
> > Woodstock, IL
> > 77 Eleganza II
> >
> >
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>

--
Jim Kanomata
Applied/GMC, Newark,CA
jimk
http://www.appliedgmc.com
1-800-752-7502
 
A closer look gives me the impression the Ragusa on my 26' has the same contour - except the fins on the outside - as the stamped one. I've not set
them side by side, the 23' with the stamped cover is gone. I side with Jimmy the K though - after that many if there was a problem it would of come
up by now.

--johnny
--
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
 
Agree. If the inner contour and volume is same, it's probably behaving the same. Still a great study by Banks and brings awareness to aftermarket and
their unknown R and D compared to OEM. Lots of performance claims that are simply not true.
--
John Lebetski
Woodstock, IL
77 Eleganza II
 
My study in hydro behavior tells me that the fact the cover is on the
opposite side makes all the difference.
I can understand why there is so much concern on the standard rear ends.
Splash lubing is not a very great way, but simple .
Our Camshaft on our engine is another example of splash lube. I have seen
Roller lifters fail because the engine was let idling for a long time.

On Thu, May 23, 2019 at 8:26 AM John R. Lebetski via Gmclist <

> Agree. If the inner contour and volume is same, it's probably behaving the
> same. Still a great study by Banks and brings awareness to aftermarket and
> their unknown R and D compared to OEM. Lots of performance claims that
> are simply not true.
> --
> John Lebetski
> Woodstock, IL
> 77 Eleganza II
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>

--
Jim Kanomata
Applied/GMC, Newark,CA
jimk
http://www.appliedgmc.com
1-800-752-7502
 
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