Broke timing belt stud ! ( no engine damage)

Discuss the RB20, RB25 and RB26 series engines.
opticnerv
Posts: 145
Joined: Sun Jun 07, 2009 4:33 am
Car: 89' Nissan 240sx SE

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I stripped the threads on the stud. I found the right size stud at napa but it's an exhaust stud. After doing some research I found that snapping timing belt tensioner studs are quiet common. So the makeshift exhaust stud has to go. Does anyone have a part number from Nissan ?

Also I think I may have lost the conical washer that goes with the tensioner anyone know where I can get one or if I can get away with just using a normal washer ?


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Gabes13
Posts: 2385
Joined: Mon Mar 17, 2008 11:59 am
Car: rb20det s13
Location: St. Pete, Fl.

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13073-V5001 is the original number but you may find 13073-Z31001 from an '84-'86 z31 300zx "vg30et" easier


EDIT:

courtesy parts has both

http://www.courtesyparts.com/stud-tensi-p-248414.html
http://www.courtesyparts.com/13070b-stu ... 41970.html

opticnerv
Posts: 145
Joined: Sun Jun 07, 2009 4:33 am
Car: 89' Nissan 240sx SE

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Thanks a lot man ! I've been searching for a couple days already. Did you run into the same problem before too or something ?

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Gabes13
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Joined: Mon Mar 17, 2008 11:59 am
Car: rb20det s13
Location: St. Pete, Fl.

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nah, there was a thread about it months ago. I did some research, found the parts, and saved the numbers on my computer. Its funny, finding parts for the 20 are hard, but when you look them up for the 25 and 26 theyre all over the place. Ironically, most of the time, they're the same parts for all the motors haha

chad b.
Posts: 311
Joined: Fri Nov 21, 2008 12:17 am
Car: chocolate chip kouki
Location: Mobile, AL

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Dude, I JUST made a post with an ARP part number for that stud and nut. Why replace it with another pos stock stud that will probably break again?

opticnerv
Posts: 145
Joined: Sun Jun 07, 2009 4:33 am
Car: 89' Nissan 240sx SE

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chad b. wrote:Ok, first off, the p.o.s. tensioner stud that breaks: you can order this from ARP. It is black oxide CrMo.
The part number is AM3.350-1LB. The 12pt nut to go on it is part number AMN12-1. This stud with the nut is gonna be a little long and just touch the lower timing cover. Easy fix, drill a hole through it with a stepper bit. It's at the bottom of the motor, so you'll never see it any way.
Thanks chad I'm re-posting the information you provided here too in case anyone is searching.

chad b.
Posts: 311
Joined: Fri Nov 21, 2008 12:17 am
Car: chocolate chip kouki
Location: Mobile, AL

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10-4 my buddy


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