47re trans questions and thank to Big Blue24 - Competition Diesel.Com

ToddT · 12-06-2016, 06:22 PM

First of all I want to thank Big Blue 24 for his thread "47re clutch packs upgrades" I followed his and others suggestions and write-up to build my tranny.

I did everything in that thread except for the overdrive dr clutches which I added more to it just had to use double sided ones. Went with a Goerend triple disk converter.

On to my question. Prior to the rebuild I was experiencing delayed 1-2 shift to the point I had to let off to get it to shift. Since the rebuild it still shifts higher than I would like at part throttle. 2300rpms or so.

I've played with the TV cable. First setting it to spec (Delayed shifts). I've since been sneaking it in to adjust the shift point lower/softer. I like the firm shifts with it set to spec but the 1-2 strings out too much at part throttle.

Could I have something wrong still that is causing the strung out 1-2 shift. I.E. pressure switch or apps. I replaced the speed sensor prior to the rebuild and isolated the apps ground.

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Redrider2911 · 12-06-2016, 08:40 PM

Did you replace your governor solenoid? Servo? Whatever they want to call it.

CorneliusRox · 12-06-2016, 09:48 PM

Quote:

Originally Posted by Redrider2911

Did you replace your governor solenoid? Servo? Whatever they want to call it.

I'm no trans expert, but I had something very similar to this prior to replacing the gov solenoid and transducer.

It started how you're describing and eventually got to the point where it didn't want to shift gears unless I went to neutral and back to drive. Lavon Miller suggested and sold me the Borg Warner gov solenoid and transducer and it solved the problem completely.

ToddT · 12-06-2016, 10:20 PM

Yep. DNJ GM style one went back in. New conv. and od solenoids and all servos upgraded.

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ToddT · 12-06-2016, 10:24 PM

That's why I'm thinking it's the pressure sensor. From what I understand it needs that reading to ramp up governor pressures.

The only thing I didn't replace too. Cleaned it but didn't replace

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wildbill144 · 12-09-2016, 06:34 PM

why would you deviate from what will did, or change what most ppl did, maybe there's where the prob lies ?,,

ToddT · 12-09-2016, 08:00 PM

Only thing I changed was the single sided clutches that aren't available anymore. I used double sided and added appropriately.

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ToddT · 12-09-2016, 08:03 PM

That's in the overdrive section too. Wouldn't have anything to do with 1-2 shifts.

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Drothgeb · 12-10-2016, 07:59 AM

Any codes? Output speed sensor?

TrailTamer · 12-11-2016, 09:58 AM

Stock valve body? Did you turned up the line pressure?

ToddT · 12-11-2016, 02:46 PM

No codes. New speed sensor back before the rebuild. VB is rebuilt using transgo TFOD-HD2.

I was careful not to drill passages bigger that would affect shift points. I did drill the boost valve cover to .090

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thunder03 · 12-28-2016, 10:42 PM

Did you turn up the line pressure at all when you did the shift kit? A dirty vb, low line pressure and miss adjusted tv cable, will all give you the symptoms you're having.

*Big Blue24* · 12-30-2016, 01:29 AM

I would put a gauge on the governor pressure test port and see if governor pressure is rising correctly. That will eliminate several potential areas, such as electronics, solenoids, etc.

ToddT · 01-21-2017, 04:17 PM

Yep checked pressures already. I found the problem today.

The TV cable had a frayed spot on the inside of the throttle cover. It would not allow the cable to return all the way in. I trimmed it off and all is normal again. Ill order a new one and replace it.

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12-06-2016, 06:22 PM	#1
ToddT Name: ToddT Title: Rookie Status: Not Here Join Date: Dec 2016 Member`s Gallery Posts: 7	47re trans questions and thank to Big Blue24 First of all I want to thank Big Blue 24 for his thread "47re clutch packs upgrades" I followed his and others suggestions and write-up to build my tranny. I did everything in that thread except for the overdrive dr clutches which I added more to it just had to use double sided ones. Went with a Goerend triple disk converter. On to my question. Prior to the rebuild I was experiencing delayed 1-2 shift to the point I had to let off to get it to shift. Since the rebuild it still shifts higher than I would like at part throttle. 2300rpms or so. I've played with the TV cable. First setting it to spec (Delayed shifts). I've since been sneaking it in to adjust the shift point lower/softer. I like the firm shifts with it set to spec but the 1-2 strings out too much at part throttle. Could I have something wrong still that is causing the strung out 1-2 shift. I.E. pressure switch or apps. I replaced the speed sensor prior to the rebuild and isolated the apps ground. Sent from my SM-G935V using Tapatalk

12-06-2016, 08:40 PM	#2
Redrider2911 Name: Redrider2911 Title: Too Much Time Status: Not Here Join Date: Nov 2015 Location: Yakima, WA Member`s Gallery Posts: 780	Did you replace your governor solenoid? Servo? Whatever they want to call it. __________________ 49 Willys Pickup. 5600lb. 11.8sec @115mph 1/4. 12 valve. MegaSquirted 47RH. 3.54 posi rear. 35" tires. 64mm HE351ve, S475 (75/96/1.32), A/W Intercooler. AFC mods. 5x16s. 191 DVs, 180 pump. 23*. 85psi. Build Thread

12-09-2016, 06:34 PM	#6
wildbill144 Name: wildbill144 Title: Green Behind the Ears Status: Not Here Join Date: Apr 2016 Location: Lake's region NH Member`s Gallery Posts: 91	why would you deviate from what will did, or change what most ppl did, maybe there's where the prob lies ?,, __________________ 98 12v tow pig plow truck. 97cclb 7"lift,DOR full kit, long arm's etc.37 toyo MT,ARB's F/R,4.56 35 spl axels. Engine trans being built

12-10-2016, 07:59 AM	#9
Drothgeb Name: Drothgeb Title: Almost Fast-N-Loud Status: Not Here Join Date: Sep 2010 Location: Maryland Member`s Gallery Posts: 820	Any codes? Output speed sensor? __________________ 95 RCLB 4WD 10.66 sec, 128.93mph I'm not a Cummins expert, but I did sleep at Holiday Inn Express

12-11-2016, 09:58 AM	#10
TrailTamer Name: TrailTamer Title: Diesel Enthusiast Status: Not Here Join Date: Apr 2011 Member`s Gallery Posts: 246	Stock valve body? Did you turned up the line pressure? __________________ 1997 2500 Club Cab Long Bed 4x4 \| NV4500 \| D80 w/ TruTrac \| D60 w/ 4340 35 spline shafts \| Ford knuckles \| Yukon Hardcore locking hubs \| 1pc Aluminum 1480 joints rear shaft \| NP-271D \| BHAF \| 4" Exhaust \| AFC LIVE \| Mack Plug \| 5x14 145* \| 7mm DV \| 4KGSK

12-06-2016, 10:20 PM	#4
ToddT Name: ToddT Title: Rookie Status: Not Here Join Date: Dec 2016 Member`s Gallery Posts: 7	Yep. DNJ GM style one went back in. New conv. and od solenoids and all servos upgraded. Sent from my SM-G935V using Tapatalk

12-06-2016, 10:24 PM	#5
ToddT Name: ToddT Title: Rookie Status: Not Here Join Date: Dec 2016 Member`s Gallery Posts: 7	That's why I'm thinking it's the pressure sensor. From what I understand it needs that reading to ramp up governor pressures. The only thing I didn't replace too. Cleaned it but didn't replace Sent from my SM-G935V using Tapatalk

12-09-2016, 08:00 PM	#7
ToddT Name: ToddT Title: Rookie Status: Not Here Join Date: Dec 2016 Member`s Gallery Posts: 7	Only thing I changed was the single sided clutches that aren't available anymore. I used double sided and added appropriately. Sent from my SM-G935V using Tapatalk

12-09-2016, 08:03 PM	#8
ToddT Name: ToddT Title: Rookie Status: Not Here Join Date: Dec 2016 Member`s Gallery Posts: 7	That's in the overdrive section too. Wouldn't have anything to do with 1-2 shifts. Sent from my SM-G935V using Tapatalk

12-11-2016, 02:46 PM	#11
ToddT Name: ToddT Title: Rookie Status: Not Here Join Date: Dec 2016 Member`s Gallery Posts: 7	No codes. New speed sensor back before the rebuild. VB is rebuilt using transgo TFOD-HD2. I was careful not to drill passages bigger that would affect shift points. I did drill the boost valve cover to .090 Sent from my SM-G935V using Tapatalk

12-28-2016, 10:42 PM	#12
thunder03 Name: thunder03 Title: Green Behind the Ears Status: Not Here Join Date: Jul 2014 Location: northern IL Member`s Gallery Posts: 37	Did you turn up the line pressure at all when you did the shift kit? A dirty vb, low line pressure and miss adjusted tv cable, will all give you the symptoms you're having. __________________ 03 CTD work truck 03 CTD project truck pulled from the river

12-30-2016, 01:29 AM	#13
Big Blue24 Name: Big Blue24 Title: Comp Diesel Sponsor Status: Not Here Join Date: Jan 2008 Location: Cedar City, UT Member`s Gallery Posts: 6,310	I would put a gauge on the governor pressure test port and see if governor pressure is rising correctly. That will eliminate several potential areas, such as electronics, solenoids, etc. __________________ 95' 2wd Junker Drag Truck 1502 HP Fuel-Only 12mm P7100 Pump SXE 472 over GTX55 116mm OEM 12v Block

01-21-2017, 04:17 PM	#14
ToddT Name: ToddT Title: Rookie Status: Not Here Join Date: Dec 2016 Member`s Gallery Posts: 7	Yep checked pressures already. I found the problem today. The TV cable had a frayed spot on the inside of the throttle cover. It would not allow the cable to return all the way in. I trimmed it off and all is normal again. Ill order a new one and replace it. Sent from my SM-G935V using Tapatalk