1985 Nissan Truck Possible timing chain issue

Tiny
JOLSON123
  • MEMBER
  • 1985 NISSAN TRUCK
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 135,000 MILES
My son just bought this w/Z24 motor. It ran really bad, and did a tune up w/ several leaking vaccum lines. During the timing procedure we couldn't get the mark to come up to the timing plate. It's about a 1/4 of a rotation off. Checked the roter in relation to where No. 1, and it's on the money.

The book we have makes note of the cam gear and pin location. I have a feeling the cam gear may have been installed wrong. I checked the dist. & It can only be positioned in one location. When I checked to see if the dist had been set wrong, I put my finger over the hole till it blew, and the same thing happened. The rotor was in position, and crank mark was a 1?4 rotation off.

Would you have some more info. I won't be back on till 5:00 pm PST
Do you
have the same problem?
Yes
No
Friday, March 19th, 2010 AT 8:38 AM

3 Replies

Tiny
RACEFAN966
  • EXPERT
Have you checked to see if the harmonic balance slipped. See the balancer has a rubber cushin between the center hub and the outer balancing ring. When the rubber goes bad it allows the outer ring to slip.
Was this
answer
helpful?
Yes
No
Friday, March 19th, 2010 AT 10:19 AM
Tiny
JOLSON123
  • MEMBER
How do I tell if the alignment is off? I don't know how to tell if it's slipped.

Thank you!
Was this
answer
helpful?
Yes
No
Friday, March 19th, 2010 AT 5:21 PM
Tiny
RACEFAN966
  • EXPERT
Can you include a pic of it? I will look it over and see.
Was this
answer
helpful?
Yes
No
Saturday, March 20th, 2010 AT 10:46 AM

Please login or register to post a reply.

Recommended Guides