valve adjustment

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cgflightmech

NAXJA Forum User

Location

San Francisco, CA

• Feb 8, 2005

• #1

I am sure you guys have some good tips on doing a valve adjustment on a 1995 4.0. Newly replaced head gasket. 130,000 miles. I just feel a bit shakey on it and could use some tips.

Thank You

V/R

 

D

Dr. Dyno

NAXJA Forum User

Location

Al Ain, UAE

• Feb 8, 2005

• #2

The 4.0 has hydraulic tappets so valve adjustment isn't necessary.

 

5-90

NAXJA Forum User

Location

Hammerspace

• Feb 8, 2005

• #3

Yah - the valvetrain is self-adjusting. The closest we have to a valve adjustment is checking the torque on the rocker pivot bolts - I'd have to look up the figure tho.

Once you have everything dialed in and done, the usual cause for tappet noise is tappet failure of some sort (either "gone flat" or "gone solid.") Not much else causes trouble there.

5-90

 

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cgflightmech

NAXJA Forum User

Location

San Francisco, CA

• Feb 9, 2005

• #4

Thank You for your help!

the engine is running great

V/R

 

4x4life05

NAXJA Forum User

Location

El Paso, Tx

• May 31, 2008

• #5

does the 2.5 have the self adjusting as well? what are the tork specs on the rockers?

 

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lawsoncl

NAXJA Forum User

Location

North Idaho

• Jun 1, 2008

• #6

4x4life05 said:

does the 2.5 have the self adjusting as well? what are the tork specs on the rockers?

Click to expand...

Yes, the 2.5l has hydraulic lifters as well.

Looking at my 95 FSM:
Rocker Arm Assembly to Cylinder Head CapScrews => 21 ftlbs

 

4x4life05

NAXJA Forum User

Location

El Paso, Tx

• Jun 1, 2008

• #7

thanks!!! :clap: