noises from nv4500 - Competition Diesel.Com

12vfummins · 01-17-2013, 06:04 PM

im on about 3 weeks with my trans swap into my fummins, it shifted get no noises, around 360 miles just about to break in. i down shifted into 3rd last night and a strange noise came from the trans like a squeaking or rattling. would come on here and there, this is after i traveled about an hr its first drive that long so it was a constant temp the whole time. i got home from another hr and its worse now every time i shift its a loud clanking sound/ rattling. i had my friend listen to it and he says it might the the input shaft bearing, it wasnt geting enough fluid, when i filled it the first time i put in 5 quarts to make sure of this. anyone have a clue thanks

ChuMaDD · 01-17-2013, 07:30 PM

Check your fluid for metal.

What fluid did you use?

Was the unit rebuilt before you installing it?

How many miles on it or is it new?

12vfummins · 01-17-2013, 07:39 PM

Quote:

Originally Posted by ChuMaDD

Check your fluid for metal.

What fluid did you use?

Was the unit rebuilt before you installing it?

How many miles on it or is it new?

amsoil mtg yes me and my buddy rebuilt. ive got bout 400 on the rebuild of everything

12vfummins · 01-19-2013, 02:20 AM

ok so I tore my trans out tonight and found the input shaft bearing was fine. I took the top cover off and a buddy of mine noticed some grinding on the face of a gear and to the corners of a majority of the teeth. then shined a light to the counter shaft gears, and what we came to conclusion that some how the end play changed when we shimed it the second time and moved enough forward for thos two gears to make contact.

LReiff · 01-19-2013, 05:34 AM

Check the torrington bearing behind the input shaft. I've seen them eat a new bearing for no reason.

phatboy07 · 01-19-2013, 11:19 AM

My 5th gear decided it would self destruct yesterday....
ImageUploadedByTapatalk1358615938.360036.jpg
Ruined both gears...

ahale2772 · 01-19-2013, 11:47 AM

I seriously do not get how that gear can self destruct, yet the wimpy synchro clutch gear holds...

phatboy07 · 01-19-2013, 04:52 PM

Ill post up better pics, when the parts come in mid week

12vfummins · 01-19-2013, 07:28 PM

wow that sucks, i got further into my trans and found out when i put it together i put a bigger race on the wrong bearing. it had more end play atleast a half inch to an inch up and down, my bearing was not worth saving. getting parts tomorrow and hopefully its getting put in for the last time!

12vfummins · 01-19-2013, 07:32 PM

[ATTACH]nv45002.jpg[/ATTACH]

alex211 · 01-19-2013, 09:53 PM

Is it normal for the nv to make some noise under high loads? My trucks nv4500 will make a good bit of noise when pulling hard in 4th and 5th, at around 25-30 pounds of boost it starts getting loud.

ahale2772 · 01-19-2013, 10:10 PM

I just rebuilt my NV yesterday, I measured the endplay at .004 before I disassembled the trans, set it at .001.

took 90% of that gear "groan" under heavy load away

keep in mind anything up to .006 endplay is considered spec, but mine sure is considerably more quiet set at .001

oil_burner · 01-20-2013, 05:30 PM

I rebuilt mine last week, set it to .0025" and still have the groan/faint rattling sound. I always herd spec is .002-.006, wish i would of know i could of went a little tighter a couple days ago! Dealer only had 4 quarts of liquid gold so i still need to get another and hope that quiets it down a little more

ahale2772 · 01-20-2013, 05:40 PM

^it probably will, I threw 6 quarts in, its quiet as a mouse.

i asked before so I would not be doubting myself lol
NV4500 main shaft preload - Competition Diesel.Com - Bringing The BEST Together

oil_burner · 01-20-2013, 07:07 PM

yea i saw that a little bit ago. I'll throw in another quart tomorrow and should be golden

draught · 01-23-2013, 07:34 PM

My 95 rattels all the time in 5th i can push my finger on the gear shift twords the dash and it goes away.Any thought?

ahale2772 · 01-23-2013, 07:53 PM

one of the detent pins for the 5th gear/reverse shaft may be worn, does it feel sloppy going into gear?

alex211 · 01-23-2013, 11:43 PM

The trans in my truck is tight going into all the gears, same as him though makes noise cruising in 5th and it goes away when you push the shifter towards the dash.

Just gonna keep beating on it like a red headed step child, sure the weak link will show eventually.

draught · 01-24-2013, 09:41 PM

No it does not feel slopy and also kind of hard to get into reverse.

alex211 · 01-24-2013, 11:53 PM

Same here, mine is a real pain to get into reverse.

01-17-2013, 06:04 PM	#1
12vfummins Name: 12vfummins Title: Diesel Enthusiast Status: Not Here Join Date: Dec 2012 Location: rolling meadows,IL Member`s Gallery Posts: 158	noises from nv4500 im on about 3 weeks with my trans swap into my fummins, it shifted get no noises, around 360 miles just about to break in. i down shifted into 3rd last night and a strange noise came from the trans like a squeaking or rattling. would come on here and there, this is after i traveled about an hr its first drive that long so it was a constant temp the whole time. i got home from another hr and its worse now every time i shift its a loud clanking sound/ rattling. i had my friend listen to it and he says it might the the input shaft bearing, it wasnt geting enough fluid, when i filled it the first time i put in 5 quarts to make sure of this. anyone have a clue thanks __________________ 1996 f250 fummins 94 p pump with fun mods and 94 nv4500 valair dual disc

01-19-2013, 02:20 AM	#4
12vfummins Name: 12vfummins Title: Diesel Enthusiast Status: Not Here Join Date: Dec 2012 Location: rolling meadows,IL Member`s Gallery Posts: 158	ok so I tore my trans out tonight and found the input shaft bearing was fine. I took the top cover off and a buddy of mine noticed some grinding on the face of a gear and to the corners of a majority of the teeth. then shined a light to the counter shaft gears, and what we came to conclusion that some how the end play changed when we shimed it the second time and moved enough forward for thos two gears to make contact. __________________ 1996 f250 fummins 94 p pump with fun mods and 94 nv4500 valair dual disc

01-19-2013, 11:19 AM	#6
phatboy07 Name: phatboy07 Title: Too Much Time Status: Not Here Join Date: Mar 2009 Location: Globe. Arizona Member`s Gallery Posts: 339	My 5th gear decided it would self destruct yesterday.... ImageUploadedByTapatalk1358615938.360036.jpg Ruined both gears... __________________ He341/GT4294, 215 pump, 5x14s, 4gsk, 22*

01-19-2013, 11:47 AM	#7
ahale2772 Name: ahale2772 Title: Too Much Time Status: Not Here Join Date: Oct 2011 Member`s Gallery Posts: 2,442	I seriously do not get how that gear can self destruct, yet the wimpy synchro clutch gear holds... __________________ 94 SCLB dually 11.3@122

01-19-2013, 04:52 PM	#8
phatboy07 Name: phatboy07 Title: Too Much Time Status: Not Here Join Date: Mar 2009 Location: Globe. Arizona Member`s Gallery Posts: 339	Ill post up better pics, when the parts come in mid week __________________ He341/GT4294, 215 pump, 5x14s, 4gsk, 22*

01-19-2013, 07:28 PM	#9
12vfummins Name: 12vfummins Title: Diesel Enthusiast Status: Not Here Join Date: Dec 2012 Location: rolling meadows,IL Member`s Gallery Posts: 158	wow that sucks, i got further into my trans and found out when i put it together i put a bigger race on the wrong bearing. it had more end play atleast a half inch to an inch up and down, my bearing was not worth saving. getting parts tomorrow and hopefully its getting put in for the last time! __________________ 1996 f250 fummins 94 p pump with fun mods and 94 nv4500 valair dual disc

01-19-2013, 09:53 PM	#11
alex211 Name: alex211 Title: Durability Tester Status: Not Here Join Date: Oct 2012 Location: Erie, PA Member`s Gallery Posts: 148	Is it normal for the nv to make some noise under high loads? My trucks nv4500 will make a good bit of noise when pulling hard in 4th and 5th, at around 25-30 pounds of boost it starts getting loud. __________________ 99 3500 4x4 dually, farm truck

01-19-2013, 10:10 PM	#12
ahale2772 Name: ahale2772 Title: Too Much Time Status: Not Here Join Date: Oct 2011 Member`s Gallery Posts: 2,442	I just rebuilt my NV yesterday, I measured the endplay at .004 before I disassembled the trans, set it at .001. took 90% of that gear "groan" under heavy load away keep in mind anything up to .006 endplay is considered spec, but mine sure is considerably more quiet set at .001 __________________ 94 SCLB dually 11.3@122

01-20-2013, 05:30 PM	#13
oil_burner Name: oil_burner Title: Green Behind the Ears Status: Not Here Join Date: Jan 2012 Member`s Gallery Posts: 84	I rebuilt mine last week, set it to .0025" and still have the groan/faint rattling sound. I always herd spec is .002-.006, wish i would of know i could of went a little tighter a couple days ago! Dealer only had 4 quarts of liquid gold so i still need to get another and hope that quiets it down a little more __________________ 97 eclb 2500, nv4500 haisly DD w/1.375 shaft, hx40/ht60 twins, 5" exhaust, afc tuned, plateless, 20*, O-rings, ARP studs, 4k gsk, contagious 5x14, 024s, airdog 165, torq tek 060, 2.5 level 18" ions 325/60 nittos

01-20-2013, 05:40 PM	#14
ahale2772 Name: ahale2772 Title: Too Much Time Status: Not Here Join Date: Oct 2011 Member`s Gallery Posts: 2,442	^it probably will, I threw 6 quarts in, its quiet as a mouse. i asked before so I would not be doubting myself lol NV4500 main shaft preload - Competition Diesel.Com - Bringing The BEST Together __________________ 94 SCLB dually 11.3@122

01-20-2013, 07:07 PM	#15
oil_burner Name: oil_burner Title: Green Behind the Ears Status: Not Here Join Date: Jan 2012 Member`s Gallery Posts: 84	yea i saw that a little bit ago. I'll throw in another quart tomorrow and should be golden __________________ 97 eclb 2500, nv4500 haisly DD w/1.375 shaft, hx40/ht60 twins, 5" exhaust, afc tuned, plateless, 20*, O-rings, ARP studs, 4k gsk, contagious 5x14, 024s, airdog 165, torq tek 060, 2.5 level 18" ions 325/60 nittos

01-23-2013, 07:34 PM	#16
draught Name: draught Title: Rookie Status: Not Here Join Date: May 2008 Location: gloucester va Member`s Gallery Posts: 20	My 95 rattels all the time in 5th i can push my finger on the gear shift twords the dash and it goes away.Any thought?

01-23-2013, 07:53 PM	#17
ahale2772 Name: ahale2772 Title: Too Much Time Status: Not Here Join Date: Oct 2011 Member`s Gallery Posts: 2,442	one of the detent pins for the 5th gear/reverse shaft may be worn, does it feel sloppy going into gear? __________________ 94 SCLB dually 11.3@122

01-23-2013, 11:43 PM	#18
alex211 Name: alex211 Title: Durability Tester Status: Not Here Join Date: Oct 2012 Location: Erie, PA Member`s Gallery Posts: 148	The trans in my truck is tight going into all the gears, same as him though makes noise cruising in 5th and it goes away when you push the shifter towards the dash. Just gonna keep beating on it like a red headed step child, sure the weak link will show eventually. __________________ 99 3500 4x4 dually, farm truck

01-24-2013, 09:41 PM	#19
draught Name: draught Title: Rookie Status: Not Here Join Date: May 2008 Location: gloucester va Member`s Gallery Posts: 20	No it does not feel slopy and also kind of hard to get into reverse.

01-24-2013, 11:53 PM	#20
alex211 Name: alex211 Title: Durability Tester Status: Not Here Join Date: Oct 2012 Location: Erie, PA Member`s Gallery Posts: 148	Same here, mine is a real pain to get into reverse. __________________ 99 3500 4x4 dually, farm truck