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torqueing crank bolt



 
 
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  #1  
Old June 27th 09, 08:35 PM posted to rec.autos.makers.mazda.miata
pm
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Posts: 9
Default torqueing crank bolt

errrr

hi,

any tricks to torque the crank bolt on a 95 w/o the special service tool?

thanks,
peter
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  #2  
Old June 28th 09, 04:21 AM posted to rec.autos.makers.mazda.miata
Bruce Haskin
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Posts: 3
Default torqueing crank bolt

On Jun 27, 12:35*pm, pm > wrote:
> errrr
>
> hi,
>
> any tricks to torque the crank bolt on a 95 w/o the special service tool?
>
> thanks,
> peter


Sure! Put the car in gear, set the parking brake, block the tires and
torque away.

BRUCE
  #3  
Old June 28th 09, 05:05 AM posted to rec.autos.makers.mazda.miata
Geary Morton
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Posts: 46
Default torqueing crank bolt

In article
>,
Bruce Haskin > wrote:

> On Jun 27, 12:35*pm, pm > wrote:
> > errrr
> >
> > hi,
> >
> > any tricks to torque the crank bolt on a 95 w/o the special service tool?
> >
> > thanks,
> > peter

>
> Sure! Put the car in gear, set the parking brake, block the tires and
> torque away.
>
> BRUCE


Methinks, if you're going to do it this way, top gear is probably best.

--Geary
  #4  
Old June 28th 09, 01:43 PM posted to rec.autos.makers.mazda.miata
pm
external usenet poster
 
Posts: 9
Default torqueing crank bolt

Bruce Haskin wrote:
> On Jun 27, 12:35 pm, pm > wrote:
>> errrr
>>
>> hi,
>>
>> any tricks to torque the crank bolt on a 95 w/o the special service tool?
>>
>> thanks,
>> peter

>
> Sure! Put the car in gear, set the parking brake, block the tires and
> torque away.


didbt work...too much "play" with the compression.
but thanks,
peter
  #5  
Old June 28th 09, 01:54 PM posted to rec.autos.makers.mazda.miata
pm
external usenet poster
 
Posts: 9
Default torqueing crank bolt

pm wrote:

>
> any tricks to torque the crank bolt on a 95 w/o the special service tool?
>
> thanks,
> peter


ok,
this is what i did...
(warning do not attempt this at home, the actor is not a professional
and this is probably stupud)- medium vice-grip on the crank pulley
holding the super charger belt so it wont move, much.

- incrementally increase torque setting to #120

- turn key on.

- describe a biological function.

- remove vice grip (and broke s/c belt.)

- notice damage to fan shroud

- replace s/c belt and repeat above swapping steps 2 and 4

+++++++++++++++++++++++++++++++++

- take for test ride
- note motor sounds nice and strong.
- be happy that the 1.5 year engine (twice), tranny and s/c rebuild job
has worked well
- jump when a hot, sweet smelling florescent liquid drips onto your
right foot

- reply to ng posts and investigate souce of said liquid......


errrrrr

  #6  
Old July 1st 09, 07:29 AM posted to rec.autos.makers.mazda.miata
Bruce Haskin
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Posts: 3
Default torqueing crank bolt

On Jun 28, 5:43*am, pm > wrote:
> Bruce Haskin wrote:
> > On Jun 27, 12:35 pm, pm > wrote:
> >> errrr

>
> >> hi,

>
> >> any tricks to torque the crank bolt on a 95 w/o the special service tool?

>
> >> thanks,
> >> peter

>
> > Sure! Put the car in gear, set the parking brake, block the tires and
> > torque away.

>
> didbt work...too much "play" with the compression.
> but thanks,
> peter


I don't understand what the compression and play ! When you put the
car in gear, the engine is locked to the rear wheels. Compression has
nothing to do with the crank in the engine. Do you have an
automatic ?? This works if the car is a stick shift.

Bruce
  #7  
Old July 1st 09, 12:01 PM posted to rec.autos.makers.mazda.miata
pm
external usenet poster
 
Posts: 9
Default torqueing crank bolt

Bruce Haskin wrote:
> On Jun 28, 5:43 am, pm > wrote:
>> Bruce Haskin wrote:
>>> On Jun 27, 12:35 pm, pm > wrote:
>>>> errrr
>>>> hi,
>>>> any tricks to torque the crank bolt on a 95 w/o the special service tool?
>>>> thanks,
>>>> peter
>>> Sure! Put the car in gear, set the parking brake, block the tires and
>>> torque away.

>> didbt work...too much "play" with the compression.
>> but thanks,
>> peter

>
> I don't understand what the compression and play ! When you put the
> car in gear, the engine is locked to the rear wheels. Compression has
> nothing to do with the crank in the engine.

hmmm, i get about 30 - 40 degrees of rotation with the engine and
everything else in place. when apply torque, i get the the it feels like
i am compressing the air in the cyl's but not enough to torque the
bolt.. i do see what you mean tho...i must be loading up the drive
train but not enough to lock up everything for a solid torque.

you have me wondering now....

i did get it torqued by clamping the pulley and belt and progressively
increasing the setting on my wrench.


>Do you have an automatic ??

whats an automatic


This works if the car is a stick shift.
>
> Bruce

  #8  
Old July 1st 09, 07:36 PM posted to rec.autos.makers.mazda.miata
miker[_2_]
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Posts: 58
Default torqueing crank bolt

> hmmm, i get about 30 - 40 degrees of rotation with the engine and
> everything else in place. when apply torque, i get the the it feels like i
> am compressing the air in the cyl's but not enough to torque the bolt..


An old motorcycle trick - take out a sparkplug and cram a length of nylon
rope into the cylinder (leaving the end hang out of course). The nylon will
keep the engine from rotating but not hurt the piston, valves, etc.; and
when you're done just pull it out and replace the plug.

miker


  #9  
Old July 1st 09, 11:27 PM posted to rec.autos.makers.mazda.miata
peter
external usenet poster
 
Posts: 54
Default torqueing crank bolt

miker wrote:

> An old motorcycle trick -


triumph maybe??

take out a sparkplug and cram a length of nylon
> rope into the cylinder (leaving the end hang out of course). The nylon will
> keep the engine from rotating but not hurt the piston, valves, etc.; and
> when you're done just pull it out and replace the plug.

i will remember this one

thanks,
peter
  #10  
Old July 2nd 09, 04:10 AM posted to rec.autos.makers.mazda.miata
Bruce Haskin
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Posts: 3
Default torqueing crank bolt

On Jul 1, 3:27*pm, peter > wrote:
> miker wrote:
> > An old motorcycle trick -

>
> triumph maybe??
>
> take out a sparkplug and cram a length of nylon> rope into the cylinder (leaving the end hang out of course). The nylon will
> > keep the engine from rotating but not hurt the piston, valves, etc.; and
> > when you're done just pull it out and replace the plug.

>
> i will remember this one
>
> thanks,
> peter


You say that you are getting rotation? Well you might, but you are
just torqing or breaking it loose. What do you care if the crank moves
a little. It will not change anything now that you have the belt on,
you are JUST breaking it loose or torqing the bolt! Once the bolt has
been broken loose, go ahead and do what you are going to do! Same
thing for torque. You don't care if the crank moves, the work is
already done.

Bruce
 




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