Engine Bolts Question
#28
Lives on the Forum
Hmm...
If these are supposed to fit in the existing holes, most of those tension bolt holes have coolant running through them.
Does this mean by running a larger diameter fastener, you are reducing some of the cooling in the housings?
Most of the stock 13B tension bolts are noticably "necked down" if you look at both under the bolt head and right after the threads.
Could've been easier and cheaper just to keep the same diameter, but the tension bolts look like they have been machined down...for a purpose?
Hmmm...
-Ted
If these are supposed to fit in the existing holes, most of those tension bolt holes have coolant running through them.
Does this mean by running a larger diameter fastener, you are reducing some of the cooling in the housings?
Most of the stock 13B tension bolts are noticably "necked down" if you look at both under the bolt head and right after the threads.
Could've been easier and cheaper just to keep the same diameter, but the tension bolts look like they have been machined down...for a purpose?
Hmmm...
-Ted
#29
Rotary Freak
iTrader: (1)
Originally Posted by RETed
Hmm...
If these are supposed to fit in the existing holes, most of those tension bolt holes have coolant running through them.
Does this mean by running a larger diameter fastener, you are reducing some of the cooling in the housings?
Most of the stock 13B tension bolts are noticably "necked down" if you look at both under the bolt head and right after the threads.
Could've been easier and cheaper just to keep the same diameter, but the tension bolts look like they have been machined down...for a purpose?
Hmmm...
-Ted
If these are supposed to fit in the existing holes, most of those tension bolt holes have coolant running through them.
Does this mean by running a larger diameter fastener, you are reducing some of the cooling in the housings?
Most of the stock 13B tension bolts are noticably "necked down" if you look at both under the bolt head and right after the threads.
Could've been easier and cheaper just to keep the same diameter, but the tension bolts look like they have been machined down...for a purpose?
Hmmm...
-Ted
a local builder is using.
my feelings are that mazda made the tension bolts with a set amount of elasticity
which allows for the expansion of the aluminum housings.
with out the give of the mazda tension bolts I would imagine that the
housings will see higher levels of crush damage.
I still think 6 well placed dowels that allow the tension bolts to pass through the
inside of the dowel and thin enough to keep strength in the material that they pass
through is the best way, least that's how i do them.
if you think this isnt enough add dowels to all the tension bolt holes.
matt
#32
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Originally Posted by RETed
Hmm...
Most of the stock 13B tension bolts are noticably "necked down" if you look at both under the bolt head and right after the threads.
Could've been easier and cheaper just to keep the same diameter, but the tension bolts look like they have been machined down...for a purpose?
Hmmm...
-Ted
Most of the stock 13B tension bolts are noticably "necked down" if you look at both under the bolt head and right after the threads.
Could've been easier and cheaper just to keep the same diameter, but the tension bolts look like they have been machined down...for a purpose?
Hmmm...
-Ted
#33
Senior Member
studs
this stud kits are the real deal ... 12.7 mm... cure my crack steals and spin bearing problem ...making well over 800 hp .....if you need machine work to fit the studs let me know ..my friend bought a mill machine just to do this work on rotaries
los angeles california area...
los angeles california area...
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