| Re: [GMCnet] 4.8 MPG. [message #324203 is a reply to message #324191] |
Fri, 22 September 2017 12:11  |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma:
|
Senior Member |
|
|
Here's a dual channel digital multimeter similar to the one I use to
display L & R bank EGT's:
http://www.auberins.com/index.php?main_page=product_info&cPath=5_21&products_id=357
Auber has a wide assortment of inexpensive thermocouples of 'most any
mounting type desired. I use type K's with clamp-on mounts -- drill one
hole in each exhaust pipe and clamp the thermocouple into it with the
provided "hose clamp". Could hardly be easier. I've used mine for
probably 5 years with no problems -- except that I'm amazed at how hot the
Cad500's EGT's run. The iron manifolds probably contribute to it -- 1300*F
at cruise is not unusual.
Ken H.
On Fri, Sep 22, 2017 at 11:31 AM, wrote:
> Go to the Chief Aircraft Supply website. Find something related to EGT
> (Exhaust Gas Temperature), pick a manufacturer's website and follow the
> links. It has been too long since my airplane days to remember which
> manufacturer that I had installed on our Cessna 172. I'll look around a
> little and see if I can do some leg work for you. Sorry about the circular
> route. I wanted to respond as quickly as possible to prevent one of my GMC
> 6 wheeler friends from frying a perfectly good engine by over leaning, very
> easy to do.
>
> ----- Original Message -----
>
> From: "Keith V"
> To: "gmclist"
> Sent: Thursday, September 21, 2017 6:55:35 AM
> Subject: Re: [GMCnet] 4.8 MPG.
>
> I've looked around for exhaust gas temperature info and didn't really find
> anything helpful.
>
> any suggestions?
>
> ________________________________
> From: Gmclist on behalf of
> richshoop@comcast.net
> Sent: Wednesday, September 20, 2017 11:51:41 PM
> To: gmclist
> Subject: Re: [GMCnet] 4.8 MPG.
>
> Watching the exhaust gas temperature is fairly standard stuff for aircraft
> piston engines, lots of information available for that area of interest. Be
> VERY careful with the lean out, minute changes can dramatically change the
> engine operating characteristics, including exhaust valve damage, pre
> ignition due to higher operating temperatures, etc,
>
> ----- Original Message -----
>
> From: "James Hupy"
> To: "gmclist"
> Sent: Wednesday, September 20, 2017 8:12:57 PM
> Subject: Re: [GMCnet] 4.8 MPG.
>
> Bob, watch the exhaust temp in just off of lean cruise. It gets into the
> danger zone really fast. Talk to Randy and George before you do too much,
> particularly with a heavily laden coach. It can be done, with careful
> management.
> Jim Hupy
> Salem, Or.
> 78 GMC ROYALE 403
>
> On Sep 20, 2017 7:02 PM, "Bob Dunahugh" wrote:
>
> That's the MPG range I got too with the carb. Got about 7.5 mpg with a
> 17000 lbs GVW over 538 miles to Elkhart. Time will tell with more miles.
> Extremely pleased with the Howell EFI. Next to add the EBL so I can read
> instant MPGs, and go to the 16.5 fuel mixture in the lean burn mode. Bob
> Dunahugh
> _______________________________________________
> 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
>
> _______________________________________________
> 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
>
> _______________________________________________
> 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
Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
|
|
|
|
GMCforum
Search
Help
Register
Login
Home
