Re: torque to yield bolts?
[Re: lewtot184]
#1381586
02/04/13 08:00 PM
02/04/13 08:00 PM
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Joined: Feb 2004
Posts: 1,012 indiana
mcmopars
OP
super stock
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OP
super stock
Joined: Feb 2004
Posts: 1,012
indiana
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any reason i need to go back to them?or use standard bolt?
Last edited by mcmopars; 02/04/13 08:52 PM.
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Re: torque to yield bolts?
[Re: mcmopars]
#1381589
02/04/13 09:39 PM
02/04/13 09:39 PM
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Joined: Jan 2003
Posts: 12,244 Benton, IL.
DaveRS23
Special needs idiot
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Special needs idiot
Joined: Jan 2003
Posts: 12,244
Benton, IL.
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I have re-used tty bolts lots of times. You will know when you torque them if they are gonna do it. Re-use yours for now and then swap them out with new ones when they become available if you are so inclined.
Master, again and still
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Re: torque to yield bolts?
[Re: Tech Instructor]
#1381591
02/04/13 11:13 PM
02/04/13 11:13 PM
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Joined: Jan 2003
Posts: 12,043 State of Confusion
hp383
Just a normal tag again
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Just a normal tag again
Joined: Jan 2003
Posts: 12,043
State of Confusion
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Are you using a stock keg type intake? Or are they the same when swapping to the M1?
Rockauto has them for $26 for the set. I just used a generic 96 magnum 5.2 for the search
Join the Penguin Liberation Front!! Stop the Hippo Occupation!
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Re: torque to yield bolts?
[Re: mcmopars]
#1381593
02/05/13 09:54 AM
02/05/13 09:54 AM
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Joined: Dec 2008
Posts: 28 Indiana
litngetr
member
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member
Joined: Dec 2008
Posts: 28
Indiana
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Quote:
does anyone know why i cant use reg.bolts? magnum 360 using edelbrock rpm air gap intake ,if it matters.
At only 12lbs I have reused mine many times.
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Re: torque to yield bolts?
[Re: litngetr]
#1381594
02/06/13 12:35 AM
02/06/13 12:35 AM
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Joined: Sep 2007
Posts: 14,889 up yours
Supercuda
About to go away
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About to go away
Joined: Sep 2007
Posts: 14,889
up yours
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When I replaced the Neon's head gasket the head bolts were TTY, the FSM laid out how they could be reused if they passed a visual. The visual was to lay the thread on a flat surface and if there was no gap between the thread "points" and the surface you could reuse them.
So I did and that head gasket eventually failed, so I sprung for new head bolts and yet another head gasket, all factory parts at this point, and no failures.
I would probably go with the ones from Rock Auto if it's in stock.
They say there are no such thing as a stupid question. They say there is always the exception that proves the rule. Don't be the exception.
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Re: torque to yield bolts?
[Re: wedgepower]
#1381597
02/07/13 09:10 AM
02/07/13 09:10 AM
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Joined: Oct 2003
Posts: 21,345 Marysville, O-H-I-O
70Cuda383
Too Many Posts
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Too Many Posts
Joined: Oct 2003
Posts: 21,345
Marysville, O-H-I-O
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nope, not that I know of, and I've put 3 or 4 of these Magnum engines together. I usually clean up and re-use the stock bolts. if they're too corroded then I just buy new grade-5 bolts from the local hardware store. they only need 12 ft lbs of torque. if a bolt is TTY at only 12 ft lbs....that's some pretty weak/soft metal! I never even used a torque wrench, I just use my 3/8 drive socket and grab it right over the top of the pivot point, and twist my wrist to tighten the bolts. I've got a 100% success rate...no vacuum leaks, no coolant leaks, no oil leaks. and that's using the 2bbl M1 intakes and the stock kegger intakes. so is it so critical? what are the odds of taking a true/false test (50/50) with 4 12-part responses, guessing blindly at each one, and getting a 100% overall score?
**Photobucket sucks**
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Re: torque to yield bolts?
[Re: wedgepower]
#1381599
02/07/13 10:47 AM
02/07/13 10:47 AM
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Joined: Feb 2005
Posts: 28,312 Cincinnati, Ohio
Challenger 1
Too Many Posts
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Too Many Posts
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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Quote:
Thanks!! I'm a tad sketchy on mine though, the book said torque is 45 ft/lbs and I had a feeling that was high. Made a couple calls to take a census of opinion and decided on 25. I'm sure it will be ok tho.
I'd tighten them until I feel them stretch, like all my fastners. I don't worry about torque on something like a intake manifold.
If you grab a torque wrench and decide to take them right to 25 ft lbs you are "driving" blind and are asking for trouble.
Got to develop a feel for tightening fastners.
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Re: torque to yield bolts?
[Re: wedgepower]
#1381600
02/07/13 10:50 AM
02/07/13 10:50 AM
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Joined: Sep 2004
Posts: 2,093 oberlin, Ohio
Rapid340
top fuel
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top fuel
Joined: Sep 2004
Posts: 2,093
oberlin, Ohio
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Be carefull overtorquing vertical-bolt intakes. Can cause head sealing and other issues. I believe some Felpro magnum intake gasket kits come with bolts.
Last edited by Rapid340; 02/07/13 02:40 PM.
1971 Factory Appearing Duster 340 11.000 @ 122 mph
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Re: torque to yield bolts?
[Re: mcmopars]
#1381601
02/07/13 12:56 PM
02/07/13 12:56 PM
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Joined: Jan 2010
Posts: 1,442 NW Chicago suburban area
Mopar Mitch
pro stock
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pro stock
Joined: Jan 2010
Posts: 1,442
NW Chicago suburban area
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TTY BOLTS HAVE THE PRIMARY BENEFIT OF DISREGARDING A TORQUE WRENCH WHICH GIVES A FRICTION READING. IN OTHER WORDS, THE BOLTS ARE STRETCHED A PREDETERMINED AMOUNT (DISREGARDING TORQUE WRENCH FRICTION READINGS... COMMON FROM THE THREADINGS) SO THEY ULTIMATELY PROVIDE EQUALIZED CLAMPING FORCE UPON THE GASKET AND CASTINGS (MORE EQUALIZED CASTING DISTORTION, IN PARTICULAR FOR CYLINDER BORES). THE OE SERVICE MANUAL SHOULD INDICATE IF THEY CAN BE RE-USED, AND IF YES, HOW MANY TIMES THEY CAN BE RE-USED. IF YOU ARE IN ANY DOUBT, SIMPLY REPLACE ALL OF THE TTY BOLTS EACH TIME FOR YOUR OWN PEAC OF MIND.
THERE IS A SIMILAR METHOD TO TTY -- AND THAT IS CALLED "TORQUE-TO-ANGLE" AND REQUIRES A SPECIFIC ANGLE GAUGE ATTACHED TO A WRENCH.
ALWAYS REFER TO THE OE SERVICE MANUAL TO DETERMINE IF THE BOLTS (TTY OR TTA) CAN BE RE-USED AT ALL.
I USED TO WORK FOR A MAJOR GASKET MANUFACTURER AND WE TAUGHT THESE NEW CLAMPING TECHNIQUES (CAME INTO THE INDUSTRY ~MID-80S) TO OUR CUSTOMERS.
Mopar Mitch
"Road racers and autocrossers go in deeper and come out harder!"... and rain never stops us from having fun with our cars... in fact, it makes us better drivers!
Check out MOPAR ACTION MAGAZINE, August 2006 issue for feature article and specs on my autocross T/A!
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