Go Back   Infamous Nissan - Hardbody / Frontier Forums > Model Specific > Hardbody Forum (D21)

Reply
 
Thread Tools Display Modes
Old 11-25-2020, 09:59 PM   #11
PFDSA
 
Join Date: Nov 2020
Location: Japan
Posts: 31
Vehicle: 1988 Datsun Truck D21
Thanks: 34
Thanked 6 Times in 3 Posts
Default

Quote:
Originally Posted by Deerhurst View Post
GL4. Always GL4. Thou must always use GL4 and GL4 is what thou shall use!





I'd check the bleed. Noise could be a throwout bearing. If you go through the effort of replacing that just do the clutch and inspect the flywheel since you'll be there anyways. I have had vehicles that the fingers on the pressure plate rattle. My dirt bike has an automotive style clutch (2002 Gas Gas 280Pro) and it rattles like a tin can of marbles in neutral. It's the fingers flopping around.



Maybe an input bearing on the tranny? Throwout bearings generally make noise when used so when the pedal is depressed vs when the pedal is out like yours.





PFDSA, I'm not sure if English is your native language as your location says Japan but your English is really good!
Thank you a lot, will definitely try that out!!

Thanks! I'm Portuguese, but been working in Japan for a while
PFDSA is offline   Reply With Quote
Old 11-25-2020, 10:20 PM   #12
PFDSA
 
Join Date: Nov 2020
Location: Japan
Posts: 31
Vehicle: 1988 Datsun Truck D21
Thanks: 34
Thanked 6 Times in 3 Posts
Default

Just realized that the brake fluid levels are relatively low recently. Any chance this is related to my transmission problems??
PFDSA is offline   Reply With Quote
Old 11-25-2020, 10:46 PM   #13
nunya
 
Join Date: Apr 2019
Location: Southeast
Posts: 973
Vehicle: nissan d21 93 kingcab 2wd
Thanks: 287
Thanked 217 Times in 180 Posts
Default

Quote:
Originally Posted by PFDSA View Post
Just realized that the brake fluid levels are relatively low recently. Any chance this is related to my transmission problems??
Level? or levels, the smaller resevoir is for the hydraulic clutch, if that was low, yes, that could be the source of your problems. Could you please post pictures of your engine compartment. Our trucks are similar, but pictures will help us help YOU.
nunya is offline   Reply With Quote
Old 11-25-2020, 11:36 PM   #14
Deerhurst
4/86 SE-V6 2 tone 4x4 HB
 
Deerhurst's Avatar
 
Join Date: Apr 2013
Location: Oregon
Posts: 7,137
Vehicle: 1986.5 SE-V6 4WD D21, 2003 Audi A4 Avant 3.0 Quattro
Thanks: 876
Thanked 842 Times in 769 Posts
Default

Quote:
Originally Posted by PFDSA View Post
Thank you a lot, will definitely try that out!!

Thanks! I'm Portuguese, but been working in Japan for a while

I like Nunya's suggestion. Check fluid level. If it's anything like the USDM trucks the clutch reservoir is tiny. I've had a clutch damper take out my master cylinder in the past. Looked full but it was mostly black goop.



The input bearing can start to make noise if the tranny is low on fluid. Always a good place to start with a good flush. Mine was so old and crusty it came out like black curdled milk. Was nasty.



I never did learn any spanish based languages. I do English, really bad english, bad french and bad italian.
__________________
1986.5 SE-V6 4X4 D21 Hardbody
Pacesetter Long Tube Headers
Morimoto Mini D2S HID Projectors and Hella 500s
VG33i
Deerhurst is offline   Reply With Quote
Thanked by:
PFDSA (11-25-2020)
Old 11-25-2020, 11:45 PM   #15
PFDSA
 
Join Date: Nov 2020
Location: Japan
Posts: 31
Vehicle: 1988 Datsun Truck D21
Thanks: 34
Thanked 6 Times in 3 Posts
Default

Quote:
Originally Posted by nunya View Post
Level? or levels, the smaller resevoir is for the hydraulic clutch, if that was low, yes, that could be the source of your problems. Could you please post pictures of your engine compartment. Our trucks are similar, but pictures will help us help YOU.
The one who got lower was a reservoir that says DOT 3 Brake fluid on the cap! The fluid level from, what I presume that is the master cylinder, has been close to the max since I bought it.

Took a look at the slave cylinder and doesn't appear to be leaking, but there's something leaking, any idea what's the name of that part (3rd photo)? Thank you for all the help! There's some pictures

PS: That's a really sweet engine bay




famous fall poems
PFDSA is offline   Reply With Quote
Old 11-26-2020, 12:41 AM   #16
Deerhurst
4/86 SE-V6 2 tone 4x4 HB
 
Deerhurst's Avatar
 
Join Date: Apr 2013
Location: Oregon
Posts: 7,137
Vehicle: 1986.5 SE-V6 4WD D21, 2003 Audi A4 Avant 3.0 Quattro
Thanks: 876
Thanked 842 Times in 769 Posts
Default

The clutch slave is the tiny one. Open the cap to check level. Mine looked like that but it was a scum line and in reality was very very low.


That diesel is super cool! I'd love a little diesel 4 door D21!!!
__________________
1986.5 SE-V6 4X4 D21 Hardbody
Pacesetter Long Tube Headers
Morimoto Mini D2S HID Projectors and Hella 500s
VG33i
Deerhurst is offline   Reply With Quote
Old 11-26-2020, 01:16 AM   #17
PFDSA
 
Join Date: Nov 2020
Location: Japan
Posts: 31
Vehicle: 1988 Datsun Truck D21
Thanks: 34
Thanked 6 Times in 3 Posts
Default

Quote:
Originally Posted by Deerhurst View Post
The clutch slave is the tiny one. Open the cap to check level. Mine looked like that but it was a scum line and in reality was very very low.


That diesel is super cool! I'd love a little diesel 4 door D21!!!
You're right, the oil is completely black and sludgy!
Will start by replacing the oil and see if if the shifting issues go away.

Thank you, really enjoying driving this little truck! The engine sound is really sweet too

If you speak bad french and bad italian, guess you would could try to speak some bad portuguese too! lol It's probably easier than french, but harder than italian
PFDSA is offline   Reply With Quote
Old 11-26-2020, 02:51 AM   #18
Deerhurst
4/86 SE-V6 2 tone 4x4 HB
 
Deerhurst's Avatar
 
Join Date: Apr 2013
Location: Oregon
Posts: 7,137
Vehicle: 1986.5 SE-V6 4WD D21, 2003 Audi A4 Avant 3.0 Quattro
Thanks: 876
Thanked 842 Times in 769 Posts
Default

Hopefully a good flush will do the trick! I'm not sure if it has a damper but that's probably what's dying if it has one.



Hahaha! I could try bad portuguese!
__________________
1986.5 SE-V6 4X4 D21 Hardbody
Pacesetter Long Tube Headers
Morimoto Mini D2S HID Projectors and Hella 500s
VG33i
Deerhurst is offline   Reply With Quote
Thanked by:
PFDSA (11-26-2020)
Old 11-26-2020, 02:52 AM   #19
jp2code
Software Developer
 
jp2code's Avatar
 
Join Date: Dec 2011
Location: Longview, TX [USA]
Age: 51
Posts: 10,222
Vehicle: 94 LB 2x4 Manual VG33e
Thanks: 1,627
Thanked 1,435 Times in 1,263 Posts
Default

Lots of good ideas to check on here, but I'll throw out one extra:

My V6 transmission had a hard time going into 1st and 2nd years ago. I swapped out the fluid for RedLine MT90, and that helped, but it was still pretty hard to get into gear without coming to a complete stop.

I took my truck to a transmission shop and they found that the brass synchronizer were worn nearly to nothing. They ordered a new set from Nissan and installed those, but that was an expensive job. Try the other suggestions first.
__________________
Joe (not a mechanic!) Don't have an account? EMAIL ME
Factory Service Manuals: https://www.nicoclub.com/FSM/Hardbody/
Walk-through: Checking Nissan Trouble Codes
1994 VG30E to VG33E with H256 Cams

jp2code is offline   Reply With Quote
Thanked by:
PFDSA (11-26-2020)
Old 11-26-2020, 09:12 AM   #20
PFDSA
 
Join Date: Nov 2020
Location: Japan
Posts: 31
Vehicle: 1988 Datsun Truck D21
Thanks: 34
Thanked 6 Times in 3 Posts
Default

Bled the Master Cylinder fluid with brake fluid DOT 3 until it became clear, since the old one was complete black, but didn't notice any changes.

Tomorrow will try to top up the transmission fluid with GL4 fluid.
PFDSA is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 06:56 AM.


Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.