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crank & rod bolts reusable?

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Old Jul 7, 2009 | 06:47 PM
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Default crank & rod bolts reusable?

Got all the parts for a complete 1.6 rebuild, new pistons and some ARP head studs and even a new crank pulley bolt but i totally forgot about the rod and crank bolts

I tried looking around for some answers but none.

So are the crank and rod bolts reusable?
Old Jul 7, 2009 | 11:37 PM
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1. Why are you building a motor with stock rods
2. don't re-use the rod bolts
3. re-use the mains

I replacedal hardware due to the wonderful world of cost/benefit. $100 for new main bolts could help me drive home from the track.
Old Jul 8, 2009 | 01:11 AM
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1. im not boosting past 12, if anything im very satisfied with what i have now,10psi.

2.^^^

3. so main/crank bolts are reusable?
Old Jul 8, 2009 | 02:11 AM
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Honestly I wouldn't use those stock rods either, but yeah.. You can reuse the rod bolts and the main bolts. I wouldn't recommend reusing the crank snout bolt however.

Wouldn't kill ya to get some ARP rod bolts though..
Old Jul 8, 2009 | 02:25 AM
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jeez crist man, 300 bucks and it will be pretty damm strong. Screw the stock rods, wait another paycheck and get them. Even at 10-12 psi it something you should consider.
Old Jul 8, 2009 | 02:43 AM
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yeah i know, stock rods are no no, but i drove like 4hrs to pick up a complete 1.6 rebuild kit a few months ago and the dude had the pistons press fitted and mounted so cant get new rods.

The next motor i have sitting in the garage will be fully built in a fewwwww months but i need a fresh for now, my current is really old and shady
Old Jul 8, 2009 | 03:08 AM
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There is no possible excuse for using stock rods in a motor build. None. I don't care if God himself installed them. You take them out, get Belfabs, and put them in. It's retarded not to.
Old Jul 8, 2009 | 03:15 AM
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Originally Posted by railz
yeah i know, stock rods are no no, but i drove like 4hrs to pick up a complete 1.6 rebuild kit a few months ago and the dude had the pistons press fitted and mounted so cant get new rods.

The next motor i have sitting in the garage will be fully built in a fewwwww months but i need a fresh for now, my current is really old and shady
you're gonna end up spending more money if you take this route...
Old Jul 8, 2009 | 03:33 AM
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Originally Posted by Savington
There is no possible excuse for using stock rods in a motor build. None. I don't care if God himself installed them. You take them out, get Belfabs, and put them in. It's retarded not to.
If you can tell me that i can remove the PRESS FITTED mounting pins with out damaging the pistons then I promise I will go into credit card debit just so I can order the m-tuned rods tonight
Old Jul 8, 2009 | 10:15 AM
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Originally Posted by railz
If you can tell me that i can remove the PRESS FITTED mounting pins with out damaging the pistons then I promise I will go into credit card debit just so I can order the m-tuned rods tonight
Granted, I've never built a Miata engine, but from the ones I have done, I don't recall the wrist pin ever being an interference fit into the piston. At least give it a shot. Remove the clips and try tapping the wrist pin out of the piston with a dowel.
Old Jul 8, 2009 | 10:49 AM
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Originally Posted by Joe Perez
Granted, I've never built a Miata engine, but from the ones I have done, I don't recall the wrist pin ever being an interference fit into the piston. At least give it a shot. Remove the clips and try tapping the wrist pin out of the piston with a dowel.
If the pin was press fit the build wasn't done properly. Often times the pin must be polished down to the correct clearances.
Old Jul 8, 2009 | 12:52 PM
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sorry guys i cant risk "trying" to remove the pins if i dont got the facts that i can for sure.
Old Jul 8, 2009 | 01:14 PM
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If it was press fitted did they use circlips or not?

Edit: I am familiar with press fitting wrist pins on rods but never on pistons. Anybody?

Edit Edit: You have the motor apart and all of the machining done and don't want to use forged rods because you don't want to wait just a little longer?
http://www.wavsource.com/snds_2009-07-06_951659426633085/tv/star_trek/logic_dazzling.wav

Last edited by sixshooter; Jul 8, 2009 at 02:21 PM.
Old Jul 8, 2009 | 02:11 PM
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Order rods, take them to machine shop, Give them 40$ and pickup in one day...
Old Jul 8, 2009 | 06:35 PM
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Originally Posted by sixshooter
If it was press fitted did they use circlips or not?

Edit: I am familiar with press fitting wrist pins on rods but never on pistons. Anybody?

Edit Edit: You have the motor apart and all of the machining done and don't want to use forged rods because you don't want to wait just a little longer?
http://www.wavsource.com/snds_2009-07-06_951659426633085/tv/star_trek/logic_dazzling.wav

im only assuming that the wrist pins are press fitted and then cir-clips go on each end?

If i can remove the wrist pins with out damaging the pistons i,ll order the m-tuned rods today.
Old Jul 8, 2009 | 07:29 PM
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Pretty sure the wrist pins aren't press-fitted in OEM pistons, so either you're going to install fucked-up OEM stuff or you're going to buy Belfab rods and do it right.
Old Jul 8, 2009 | 07:43 PM
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Lemme tear apart this other block i have and check to see if the wrist pins are removable
Old Jul 8, 2009 | 08:33 PM
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Originally Posted by railz
Lemme tear apart this other block i have and check to see if the wrist pins are removable
Its not like re-using syringes with lizards at the truck stop.
Old Jul 8, 2009 | 10:11 PM
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ok, all done with the tear down. I checked the wrist pins and they come out like nothing after you remove the cir-clips...doh.

im ordering the M-tuned rods and some ARP main bolts right now.
Old Jul 8, 2009 | 10:24 PM
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Originally Posted by railz
ok, all done with the tear down. I checked the wrist pins and they come out like nothing after you remove the cir-clips...doh.

im ordering the M-tuned rods and some ARP main bolts right now.
we were just ******* with you dude, run the stock rods.



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