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Semi floating pins? #697402 05/13/10 09:47 PM 05/13/10 09:47 PM
Joined: Dec 2008 Posts: 1,200 UK 6 602heavy OP pro stock
602heavy OP pro stock 6 Joined: Dec 2008 Posts: 1,200 UK	Putting together a 512 stroker (RB) , the pins are a press fit into the rods & float in the piston pin bore , clearance between wrist pin & spiro locks are around .015" (float) , seems pretty tight to me? ,any thoughts? Thanks Last edited by 602heavy; 05/13/10 11:36 PM.

Post deleted by Defbob [Re: 602heavy] #697403 05/13/10 09:50 PM 05/13/10 09:50 PM
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Re: Semi floating pins? #697404 05/13/10 09:54 PM 05/13/10 09:54 PM
Joined: Aug 2005 Posts: 497 wentzville mo 1 1974PW mopar
1974PW mopar 1 Joined: Aug 2005 Posts: 497 wentzville mo	why are you running locks?? if its press fit on the rod that is your lock. the pistons can be used for pressed fit or floating just not using the locks for the press fit.

Re: Semi floating pins? #697405 05/13/10 09:58 PM 05/13/10 09:58 PM
Joined: Dec 2008 Posts: 1,200 UK 6 602heavy OP pro stock
602heavy OP pro stock 6 Joined: Dec 2008 Posts: 1,200 UK	These are fully floating , pin seems a tad tight in the rod. Last edited by 602heavy; 05/13/10 10:02 PM.

Re: Semi floating pins? [Re: 602heavy] #697406 05/13/10 10:01 PM 05/13/10 10:01 PM
Joined: Dec 2008 Posts: 1,200 UK 6 602heavy OP pro stock
602heavy OP pro stock 6 Joined: Dec 2008 Posts: 1,200 UK	posted twice. Last edited by 602heavy; 05/13/10 10:03 PM.

Re: Semi floating pins? [Re: 602heavy] #697407 05/13/10 10:05 PM 05/13/10 10:05 PM
Joined: Aug 2005 Posts: 497 wentzville mo 1 1974PW mopar
1974PW mopar 1 Joined: Aug 2005 Posts: 497 wentzville mo	the first post said its press fit in the rods? if full floating .015 doesnt sound bad to me.

Re: Semi floating pins? [Re: 1974PW] #697408 05/13/10 10:05 PM 05/13/10 10:05 PM
Joined: Nov 2003 Posts: 6,293 Rock Springs Bob_Coomer master
Bob_Coomer master Joined: Nov 2003 Posts: 6,293 Rock Springs	Quote: why are you running locks?? if its press fit on the rod that is your lock. the pistons can be used for pressed fit or floating just not using the locks for the press fit. I agree Your just adding weight, and something to come out into the bores for no apparent reason.... They are either floaters or pressed...The pistons was design to accept either a pressed or bushed rods. Forget the locks. [color:"red"]65 Hemi Belvedere coming soon [/color] [color:"#00FF00"]557" Indy engine 1.07 60ft 144mph in the 8th 2100 lbs package [/color]

Re: Semi floating pins? [Re: Bob_Coomer] #697409 05/13/10 10:17 PM 05/13/10 10:17 PM
Joined: Dec 2008 Posts: 1,200 UK 6 602heavy OP pro stock
602heavy OP pro stock 6 Joined: Dec 2008 Posts: 1,200 UK	Should of worded this a little better from the start . sorry.................. The kit uses fully floating pins , the pin is a tad tight on the rod , should i leave as is or get them honed? Last edited by 602heavy; 05/13/10 10:25 PM.

Re: Semi floating pins? [Re: 602heavy] #697410 05/13/10 10:26 PM 05/13/10 10:26 PM
Joined: Aug 2005 Posts: 497 wentzville mo 1 1974PW mopar
1974PW mopar 1 Joined: Aug 2005 Posts: 497 wentzville mo	your running a floating pin on a none bushed rod?? is the pin coated at least?

Re: Semi floating pins? [Re: 1974PW] #697411 05/13/10 10:34 PM 05/13/10 10:34 PM
Joined: Dec 2008 Posts: 1,200 UK 6 602heavy OP pro stock
602heavy OP pro stock 6 Joined: Dec 2008 Posts: 1,200 UK	Quote: your running a floating pin on a none bushed rod?? is the pin coated at least? Made a complete mess of my first post , rods ARE bushed , my brain seems a bit messed up tonight.

Re: Semi floating pins? [Re: 602heavy] #697412 05/13/10 11:02 PM 05/13/10 11:02 PM
A Anonymous Unregistered
Anonymous Unregistered A	if the pins are tight in the rods, have them honed to the proper fit for your application.

Re: Semi floating pins? #697413 05/13/10 11:45 PM 05/13/10 11:45 PM
Joined: Dec 2008 Posts: 1,200 UK 6 602heavy OP pro stock
602heavy OP pro stock 6 Joined: Dec 2008 Posts: 1,200 UK	The wrist pins were supplied with the pistons & rods . you would think they would be clearanced for correct fit (.0006"/.0003"?) , just seems anothe set back when putting these things together. Takes a light tap with a mallet to slide these pins into the rod bushings , tad more than a thumb fit.

Re: Semi floating pins? [Re: 602heavy] #697414 05/14/10 01:56 AM 05/14/10 01:56 AM
Joined: Aug 2003 Posts: 43,240 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,240 Bend,OR USA	Quote: The wrist pins were supplied with the pistons & rods . you would think they would be clearanced for correct fit (.0006"/.0003"?) , just seems anothe set back when putting these things together. Takes a light tap with a mallet to slide these pins into the rod bushings , tad more than a thumb fit. Some of the kits do not come pin fitted, yours needs it I like to see at leats .0008 for a street motor and .001 for a race motor on the pins to the rods and pistons, more if it is using a power adder Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

Re: Semi floating pins? [Re: 602heavy] #697415 05/14/10 08:29 AM 05/14/10 08:29 AM
Joined: Jan 2003 Posts: 75,070 U.S.S.A. JohnRR I Win
JohnRR I Win Joined: Jan 2003 Posts: 75,070 U.S.S.A.	Quote: The wrist pins were supplied with the pistons & rods . you would think they would be clearanced for correct fit (.0006"/.0003"?) , just seems anothe set back when putting these things together. Takes a light tap with a mallet to slide these pins into the rod bushings , tad more than a thumb fit. Just because it came as a set doesn't mean a thing , unless you paid to have it pin fit by the supplier then they do as little as possible .

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