Looking at Greddy.
Hey!, im new to the forums and im looking at a greddy kit for my 1.6.
I have a 1990 Mariner blue miata with a short nose crank. The engine was rebuilt about 9k miles ago, and the crankshaft was replaced with a new one. Anyone have any opinions on FI and the short nose crank? I personally think most of the short nose cranks break because of over-torquing when timing belt replacement is done, not that its an epidemic and they break for no reason. I think this because my father has been a mechanic for 30+ years and has heard all about it. What do you guys think?! Thanks!! Nate. |
No reason the shortnose crank should be any different for FI than the long nose.
Whether over-torquing or just incorrect assembly is the problem, as long as you check a correctly assembled crank bolt every 30k or so, there should be no problem. I am of the opinion that every failure was after being disassembled the first time. I haven't heard of one that failed on its' own before 60k and the timing belt change recommendation. I could be wrong, but I'm just sayin' |
Welcome To The Thunder Dome Bitch!
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What olderguy said... any more questions?
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Ive got one for sale if your looking to buy
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The short nose does not affect power, just the looseness of the bolt, right?
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Originally Posted by iluvtruenos
(Post 63829)
The short nose does not affect power, just the looseness of the bolt, right?
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Ok, good. So technically a short nose can make the same figures as a big nose, right?
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Yes, just when you go to do the timing belt, be a little more careful with the woodruff key when seating the belt cog, and ensure that you use a torque wrench to tighten the bolt for the crank pulley. If you haven't done it yet, this is a good idea prior to putting a turbo on the car. Turbo=more heat and more load on the cooling system.
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