First 120k Done! Some interesting finds

The Nissan 300ZX (Z32) general community discussion forum
IonZ32
Posts: 117
Joined: Mon May 21, 2012 11:46 pm
Car: 1990 300zx TT
1992 300zx
1964 Malibu

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Last weekend my friend and I tore down into his 91 300zx 2+2, it was overdue by about 13k. Didn't run into too many problems, pretty straight forward actually. Bought the 120k off CZP. Those cams can be pesky to keep in place when putting on the new belt though.
Once we got the belt covers off we noticed some odds. The old belt had so much play it was possible to take it off without actually removing anything. There was actually so much play when we turned the crank to put it at TDC, the crank would move to take up the slack in the timing belt, and then it would get tight enough to turn the cams.
Second, when we removed the autotensioner we noticed it hadnt been working at all. The autotensioner arm was frozen to the plunger column, it had no movement whatsoever. The idler bearings were 90% frozen and were incredibly difficult to turn by hand, and when you did manage to move it, it felt as if it were filled with rocks.
Third, the underside of the belt when seen in better light had clear cracks in it. Another scary thought.

After completing the 120k his car runs like its brand new. It used to make a lot of odd noises and had a lot of hesitation under throttle. Now its the complete opposite, car is running amazing.
Overall I feel like that belt had maybe one more start on it. I cant believe it actually ran. I'll get some pics of the autotensioner up soon!

Figured I'd share my experience, feel free to share yours! And to those putting off their belts, do it soon! (myself included, mine is now due :chuckle: )


MaximA32
Posts: 349
Joined: Mon Jan 09, 2012 1:30 am
Car: '98 Maxima (RIP)
'04 Maxima - Traded
'06 Mazda 6S- Traded
'15 Altima
Location: Valley of the Sun

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Your friend is lucky he didn't have any issues with the belt slipping or dropping a tooth, that could have been bad.

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Ziggy1621
Posts: 1137
Joined: Sun Jun 10, 2012 5:57 pm
Car: '90 Z32 TT (Shibui)
'90 Z32 2+0 NA
'68 311 Roadster
2004 Rx330
2011 BMW 550i (TT)
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::rolldice:: <-- there's no icon for it, but there should be ;)

Glad it worked out for him

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canadian booster
Posts: 1097
Joined: Mon Aug 23, 2010 9:54 am
Car: 1993 Nissan Z32 TT JDM
Location: Calgary, canada
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wow! bet he's happy you didn't wait any longer to swap it out :D luckeee! it sucks when a belt snaps when you're driving, RIP Eagle Talon...

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Oh Em Zee
Posts: 549
Joined: Fri Apr 17, 2009 6:55 pm
Car: '96 Nissan Z32 Slicktop
'90 Nissan Z32 2+2
Location: San Jose, CA

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Yikes!! Glad you guys decided to do the 120k in time!

IonZ32
Posts: 117
Joined: Mon May 21, 2012 11:46 pm
Car: 1990 300zx TT
1992 300zx
1964 Malibu

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For the hell of it we went to the Nissan dealership the other day to see what they would charge for the job. They werent exactly happy to hear us asking about a 120k kit for a 300zx. In fact the guy at the front wouldnt stop recommending other places to take it to! Apparently they're not fond of the 300zx. $1890 for the job is what they quoted. Quite the savings doing it yourself!

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300ZXttZMAN
Posts: 6800
Joined: Mon Nov 22, 2010 4:07 pm
Car: 1990 Nissan 300ZX TT 5spd pearl white

DD: 2008 Nissan Frontier NISMO pkg 4x4 Crew Cab
Location: Sulphur, LA 70665
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Good thing yall took care of it! Could have got real nasty. :ohno:

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H1tman
Posts: 136
Joined: Wed Mar 14, 2012 3:38 pm
Car: '90 300zx 2+2 Azure Blue
Location: Temecula, CA

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$1890 for a 120k!!!!! My buddy got his done at SZ for 1000 bucks.


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