Easy ways to check for bad shortnose crank?
#1
Senior Member
Thread Starter
iTrader: (2)
Join Date: May 2007
Location: Malibu, CA
Posts: 749
Total Cats: 0
Easy ways to check for bad shortnose crank?
So I've been out of a miata for a few years, and am trying to get another.
I've found a 1990 for a very reasonable price, but it's barely running thanks to what the owner says is a skipped timing belt. It starts up and drives, but with little to no power.
If it's just the timing belt then it's a killer deal, but I'm worried that as a 90, the crank pulley could be causing the belt to skip, and might be on it's way out.
Flashlight and stare at the pulley? I'm 1.6 retarded, so if there is a better way to check if the crank is toast it would be much appreciated.
I've found a 1990 for a very reasonable price, but it's barely running thanks to what the owner says is a skipped timing belt. It starts up and drives, but with little to no power.
If it's just the timing belt then it's a killer deal, but I'm worried that as a 90, the crank pulley could be causing the belt to skip, and might be on it's way out.
Flashlight and stare at the pulley? I'm 1.6 retarded, so if there is a better way to check if the crank is toast it would be much appreciated.
#2
Senior Member
iTrader: (3)
Join Date: Nov 2009
Location: Royal Palm Beach, FL
Posts: 725
Total Cats: 5
i think you can just count the grooves on the pulley. or this
http://www.miata.net/garage/crankshaft.html
search X 10 before you ask.
http://lmgtfy.com/?q=how+to+tell+miata+short+nose
http://www.miata.net/garage/crankshaft.html
search X 10 before you ask.
http://lmgtfy.com/?q=how+to+tell+miata+short+nose
#6
The obvious thing is to look for wobble. Beyond that, you find it on a TB job.
Also, I wouldn't worry about it. The Locktite fix is pretty much a cheap, effective and permanent repair. I've got 40K on mine now (~8K turboed), and I started with a worn keyway and pulley wobble at 150K.
If you've got a decent, unhacked car with no corrosion, go for it. Mechanics can always be fixed.
Also, I wouldn't worry about it. The Locktite fix is pretty much a cheap, effective and permanent repair. I've got 40K on mine now (~8K turboed), and I started with a worn keyway and pulley wobble at 150K.
If you've got a decent, unhacked car with no corrosion, go for it. Mechanics can always be fixed.
Last edited by hornetball; 09-28-2011 at 07:13 AM.
Thread
Thread Starter
Forum
Replies
Last Post
Zaphod
MEGAsquirt
47
10-26-2018 11:00 PM
stoves
Suspension, Brakes, Drivetrain
5
04-21-2016 03:00 PM