Looking at Greddy.
#1
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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.
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.
#2
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'
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'
#9
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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supercooper
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07-25-2013 08:51 AM