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Mazda Engine General \  headstuds

headstuds

Mazda Engine General Mazda Engine Mazda Tech
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replies 18
following 5
 
dimotorsports   +1y
Hey guys..
F2 headstuds...
Are they reusable, or have to be replaced with an engine build?
I've heard some say yes and others no..
89b2200   +1y
I would only used it at most twice if the hex heads are not rounded and threaded ends in good shape.
Chase the block threads and lube the bolt threads and hex head surface with assembly lube for accurate torque values.
pont   +1y
i use mine up to but no more than 3 thats my limit on them
nytrdr24   +1y
NOT TRYING TO BE AN A**, BUT WOULD YOU PUT BURN OIL IN A NEW ENGINE........ THE HEAD BOLTS STRETCH THROUGH OUT ALL THE HEAT CYCLES AND WILL NOT OFFER YOU THE SAME HOLDING STRENGTH AS NEW ONES WHICH WILL LEAD TO COMPRESSION LOSS.
dimotorsports   +1y
That's my thought process on the studs, which is why I am afraid to reuse them. My Honda was the same way, but I replaced them with ARP studs which are able to be reused.
nytrdr24   +1y
i'dont know if arp's are available for our trucks, i do know ajusa sells them.
pont   +1y


ok so stop being one

My Grandpa worked on trucks and that was his rule of thumb as well and bolts and oil are nothing alike. everytime i use one the over i add about 2 pounds of tourqe extra
nytrdr24   +1y
^^^^ torque her down till she strips...then back her off a quarter turn
89b2200   +1y
These stock motors are weak!
I would use them 3 times with no problems.
Have done it a couple of times on stock motors with no problems.

Now if you are modding the engine, that is a different ballgame.
baggedb22   +1y
I wouldn't reuse them its not worth having to tear everything back down. Spend a couple bucks and get new hardwear...