dabby dunkerton Posted July 19, 2015 Report Share Posted July 19, 2015 Long story short i turn the key hear a weird sound. Start driving around and notice temp gauge shoot up.Upon further inspection my harmonic balancer is hanging by only the fan belt! wtf how does a harmonic balancer even break??? anyways the only one i could find online is 300 at orileys is that my only option as far as replacing it? And even after i shell out the dough is this gonna be a bear of a job or does it bolt in? any advice is much appreciated guys!Ill try posting pics in a sec Quote Link to comment
nismo dr Posted July 19, 2015 Report Share Posted July 19, 2015 Relatively bolt in, if the old one fell off as long as the crank snout is still round you should be good to go. I would wager here on ratsun you can find a crank pulley less than $300 though.... this is where datzenmike can chime in with part# so I can see if still available from Nissan :rofl:, you probably need a crank bolt as well? Quote Link to comment
datzenmike Posted July 19, 2015 Report Share Posted July 19, 2015 Can't find damper only. Pulley with damper assy... 12303-N3600 Used on all '75-'78 280z L28 engines exclusively. Also used (optionally) on the '74 L26 and one year only '79 280zx non power steering. So what is common to the L26 and the first year zx??? No power steering for sure, but the L24 didn't have PS either so the question becomes what is different between the L24 and later L26/L28???? All L24/26/28 are listed with damper so pulley diameter, number of belts or spacing on the crank may be the difference. All have the damper so if it's bolted on you could swap one onto your L28. 1 Quote Link to comment
dabby dunkerton Posted July 19, 2015 Author Report Share Posted July 19, 2015 how do you paste a picture on here? the crank snout looks good it looks like only the balancer broke Quote Link to comment
nismo dr Posted July 19, 2015 Report Share Posted July 19, 2015 you need a photobucket or equivalent http://community.ratsun.net/topic/691-how-to-post-pictures-and-keep-online-photo-albums/ Quote Link to comment
datzenmike Posted July 20, 2015 Report Share Posted July 20, 2015 how do you paste a picture on here? the crank snout looks good it looks like only the balancer broke You say hanging by the belt so it's the pulley that came off? Take a look at the front of the crankshaft. You should see a large 26mm bolt holding the pulley on. Quote Link to comment
darrel Posted July 20, 2015 Report Share Posted July 20, 2015 http://hbrepair.com/harmonicbalancer_018.htm If still rebuildable. Quote Link to comment
dabby dunkerton Posted July 21, 2015 Author Report Share Posted July 21, 2015 You say hanging by the belt so it's the pulley that came off? Take a look at the front of the crankshaft. You should see a large 26mm bolt holding the pulley on. the bolt is gone but the threads are all still perfect i guess the bolt just thredad it self out, is the male part of the notch on the crank or the pulley? Quote Link to comment
datrod Posted July 23, 2015 Report Share Posted July 23, 2015 This could get ugly. If the pulley came off and the key dropped off into the oil pan you might be in trouble. There should be a half moon piece of key stock on the crank snout. If you can't find that little piece it could be in the bottom of the pan. Might lay there for years. But I don't think I would take a chance. Quote Link to comment
Ranman72 Posted July 26, 2015 Report Share Posted July 26, 2015 if you dont find the crank key use a large magnet on the pan and slide it around everywhere and toward the drain plug to see if it might be in the pan or gone completely Quote Link to comment
afbrian13 Posted September 14, 2015 Report Share Posted September 14, 2015 The only difference on those is the number of grooves. Having extra doesn't hurt anything except a slight bit of added weight. Ever find a new pull and bolt? Quote Link to comment
datzenmike Posted September 15, 2015 Report Share Posted September 15, 2015 Key is heavier than oil it won't go anywhere. Might slide to the lowest part of the pan but so what? Lash pads end up there all the time and they are smaller. Can't pass the pick up tube screen. 1 Quote Link to comment
paradime Posted September 15, 2015 Report Share Posted September 15, 2015 True that, I found a lash pad in my SR oil pan. Quote Link to comment
datzenmike Posted September 16, 2015 Report Share Posted September 16, 2015 Does the SR even have lash pads??? :lol: Quote Link to comment
dabby dunkerton Posted November 16, 2015 Author Report Share Posted November 16, 2015 The only difference on those is the number of grooves. Having extra doesn't hurt anything except a slight bit of added weight. Ever find a new pull and bolt? yep i finally found a 1 row balancer new on ebay for 80 bucks and then i got the bolt and other supporting hardware from z car source for about 20 if i rember correctly. Honestly putting on was super skethch i took out my raidtor but i still barley see a damn thing eventually i was fairly confident it was straight and just started tightening down with the tool. Lol eventually it slipped on but at first i was sketched out that i didnt have it straight:D all is well now thanks guys as always! Quote Link to comment
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