Question about 1986 Chevrolet Astro Cargo

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4.3l 1986 CHEV HEAD TOURQUE SPECS - 1986 Chevrolet Astro Cargo

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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: head tourque specs

The Haynes manual says for 96 - 98 to torque the head bolts to 22 ft lbs and than the short bolts 45 degrees, medium 55 and long 65 degrees

Those bolts are "Torque To Yield" bolts. You should be using new head bolts, tighten them to the spec listed and then rotate them the additional degrees of rotation that is specified. This assures that the bolts are tightened to a maximum clamp load.

To start out with, be sure to torque from the center out and there is a designated sequence to go in


Posted on Aug 25, 2008

  • 916 Answers

SOURCE: tightening head

New Headbolts are recommended

Long bolts are torqued to 46'lbs + 90 degrees.

Short bolts are torqued 43'lbs + 90 degrees.

Start in the center, and work to the edges, torquing the bolts in two stages.

Rockers are torqued to 22'lbs.

Posted on Dec 21, 2008

  • 6982 Answers

SOURCE: tourque specs for 1968 camaro

Do you mean the tightness of the ball joint nuts? If you do use 55lbs, then tighten further if cotter pin hole does not line up. DON'T back off to get pin to go in!

Posted on Apr 18, 2009

  • 720 Answers

SOURCE: 4g67 head tourqe settings


Just to add to previous solution...

Assuming your head is straight & without defects, ensure you follow the correct tightening sequence diagram (see numbers) below:

Front of engine

i e
n 10 8 x
t h
a 4 6 a
k u
e 2 1 s
5 3
s s
i 7 9 i
d d
e e

1) Apply a small amount of engine oil to the thread section of the bolt and install so the chamfer of the washer faces upward.

2) In the proper tightening sequence (as shown above), torque bolts initially to 22 ft.lbs. (30Nm)

3) In the proper tightening sequence, now torque bolts to 45 ft.lbs. (61Nm)

4) In the proper tightening sequence, finally torque bolts to 68 ft.lbs. (92Nm)

Now you can Install the Camshaft sprocket and tighten it to 65 ft.lbs. (90Nm), while holding sprocket in place using the correct wrench.

Confirm proper timing mark alignment.


Posted on Aug 17, 2009

  • 94 Answers

SOURCE: replacing cylinder head on 1986 montero with 2.6


  1. Torque all bolts except No. 11 to 69 ft. lbs. on a cold engine or 75 ft. lbs. on a hot engine.
  2. Torque cylinder head to chain case cover bolts (No. 11) to 156 inch lbs.
  3. 42011356

Posted on Sep 17, 2009

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  3. 42011356

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