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Old 05-07-2014, 11:36 PM   #1
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Shift Tranny?

I bought a 2000 Holiday Rambler Endeavor last fall and drove it from Iowa to SC and back. I have a Cat 350 with the 6 speed Allison transmission. My question is when pulling a hard pulling hill do you leave the tranny in 6th or do you manually shift it down? I experimented with doing it but saw no difference from not shifting it myself.
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Old 05-08-2014, 08:00 AM   #2
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First I think you have either a 300 or 330HP Cat. But when coming to a hard pull I manually drop to a gear that is near the best cooling RPM 2200. Which is also near the best HP and torque also. So I keep cool and have the best pulling power.

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Old 05-09-2014, 12:29 AM   #3
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Originally Posted by OLYLEN View Post
First I think you have either a 300 or 330HP Cat. But when coming to a hard pull I manually drop to a gear that is near the best cooling RPM 2200. Which is also near the best HP and torque also. So I keep cool and have the best pulling power.

LEN
X2. on the manual downshift . All your engine spec's and serial number should be on a sticker on top of the valve cover. Slip in and take a picture of those numbers for reference , because if you need to order parts, the first thing a Cat parts person will ask is, " what's the serial number of your engine?'
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Old 05-09-2014, 12:00 PM   #4
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Thanks guys. I live in Alaska and had the RV stored in Iowa for the winter. I am now back in Iowa and putting it back into service. I too questioned the previous owner on the 350 versus 330 but I was assured it was a 350. I'll check it out this afternoon when I get done helping plant soybeans.
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Old 05-09-2014, 12:38 PM   #5
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Haven't looked at the weather on the central plains. I hope you've got what you need for planting , I do know that it's a waiting game north of the border, frost still in the ground in a lot of areas. Don't work too hard.
Sends shivers up my spine just typing that word.
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Old 05-09-2014, 01:07 PM   #6
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I'll post these 2 pages , from a Cat RV engine performance manual that I downloaded from Cat , before they stopped producing on-highway engines and changed their web site. Somewhere on a computer I have the whole thing on file , but of course I can't find it.
If I can find it somewhere , I'll post a link, good reading, and info that should be a " must read " for all diesel RV owners, Cat , Cummins or other.
Attached Files
File Type: pdf Cat perfomance 1.pdf (1,017.7 KB, 35 views)
File Type: pdf Cat performance 2.pdf (908.4 KB, 34 views)
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Old 05-10-2014, 10:50 PM   #7
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I opened up the hatch to gain access to my engine today and determined that I do indeed have a 330 hp engine. My factory manual that came with the RV when I got it has a sticker with a bar code on it with red letters Cat 350 hp. I don't know why it is there but the serial number and the sticker on top of the engine says 330. It is in a spot that you can't read the hp but I did use my cell phone to reach under the back closet and get a picture of it. I love this web site as there is a wealth of information on here.
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Old 05-10-2014, 11:28 PM   #8
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I love this web site as there is a wealth of information on here.
That's what we love to hear.
Now as soon as the plantings done , get out and enjoy, your RV.
Travel safe.
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Old 05-10-2014, 11:44 PM   #9
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Good idea for sure. I think I may go gather up my brother and drive to Spooner Wisconsin to see an elderly aunt and a cousin.
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Old 05-14-2014, 10:30 AM   #10
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I found a complete file for the Cat RV performance.
Makes good reading .
Attached Files
File Type: pdf Cat_RV_Performance.pdf (246.3 KB, 32 views)
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