Author Topic: What should the rod to floating pin clearance be?  (Read 10811 times)

Offline brads70

  • C-C.com Expert
  • ********
  • Posts: 18747
Re: What should the rod to floating pin clearance be?
« Reply #15 on: October 26, 2011 - 01:23:15 PM »
the piston clearance to the pin should be the same either way as it floats in the rod & piston , in a floating system . You still have to fix the rod problem though .

That's how I was thinking too? Oh I agree I'm not assembling the rods like that!
Brad
1970 Challenger 451stroker/4L60 auto OD
Barrie,Ontario,Canada
Proud to own one of the best cars ever made!!!!!

My restoration thread 
http://www.cuda-challenger.com/cc/index.php?topic=59072.0
 My handling upgrade post
http://www.cuda-challenger.com/cc/index.php?topic=73985.0




Offline brads70

  • C-C.com Expert
  • ********
  • Posts: 18747
Re: What should the rod to floating pin clearance be?
« Reply #16 on: October 26, 2011 - 03:06:43 PM »
thats loose... what type of kit ya running? rods/pistons pins etc...

Hi Jason!  :wave:   Icon pistons, rods look offshore? same as 440 stuff? h beam

Brad
1970 Challenger 451stroker/4L60 auto OD
Barrie,Ontario,Canada
Proud to own one of the best cars ever made!!!!!

My restoration thread 
http://www.cuda-challenger.com/cc/index.php?topic=59072.0
 My handling upgrade post
http://www.cuda-challenger.com/cc/index.php?topic=73985.0

Offline 72cudamaan

  • Resident
  • *****
  • Posts: 3248
Re: What should the rod to floating pin clearance be?
« Reply #17 on: October 26, 2011 - 09:50:23 PM »
Brad, did you get the rods with the bushings already sized?
Who sized them if not?
If I cant fix it, it's broke
 
Andy  (phukker whither)

Offline brads70

  • C-C.com Expert
  • ********
  • Posts: 18747
Re: What should the rod to floating pin clearance be?
« Reply #18 on: October 26, 2011 - 10:11:08 PM »
Brad, did you get the rods with the bushings already sized?
Who sized them if not?

Yes Muscle Motors supplied the whole kit, rods, pistons, crank, etc,,,
They sized the rods for the wrist pins.
Brad
1970 Challenger 451stroker/4L60 auto OD
Barrie,Ontario,Canada
Proud to own one of the best cars ever made!!!!!

My restoration thread 
http://www.cuda-challenger.com/cc/index.php?topic=59072.0
 My handling upgrade post
http://www.cuda-challenger.com/cc/index.php?topic=73985.0

Offline femtnmax

  • Full Member
  • ***
  • Posts: 997
Re: What should the rod to floating pin clearance be?
« Reply #19 on: October 27, 2011 - 09:31:45 PM »
typically it is .0006-.0009 Brad.  Should feel like a slight thumb pressure press fit.
Yes, have to push it thru with your thumb.  That is exactly how I was taught to fit the pins, and that is how the local machinist fit my pins to rods.  As suggested have new rod bushings installed and fit to the pins.  I Also roll the piston edges to help eliminate hot spots.
My eagle rods were all just a touch tight to the pins, so carefully worked the rod bushings to make the fit perfect.  Sorry to hear your having to go the other way.
Phil

Offline brads70

  • C-C.com Expert
  • ********
  • Posts: 18747
Re: What should the rod to floating pin clearance be?
« Reply #20 on: October 27, 2011 - 11:21:02 PM »
Price I got from a local machine shop was $20 a rod plus the cost of the bushings. Funny Muscle didn't ever phone me back. I assume they are hoping I'll just go away or forget about it? :grinno: I'll try phoning them tomorrow again. Yesterday no one was answering the phones when I tried? :dunno:
Brad
1970 Challenger 451stroker/4L60 auto OD
Barrie,Ontario,Canada
Proud to own one of the best cars ever made!!!!!

My restoration thread 
http://www.cuda-challenger.com/cc/index.php?topic=59072.0
 My handling upgrade post
http://www.cuda-challenger.com/cc/index.php?topic=73985.0

Offline Chryco Psycho

  • Administrator
  • C-C.com Guru
  • *****
  • Posts: 36620
  • 70 Challenger R/T SE 70 tube Chassis Cuda now sold
Re: What should the rod to floating pin clearance be?
« Reply #21 on: October 27, 2011 - 11:43:43 PM »
Now I am feeling bad about recommending them
 Is Beatty & Woods still in business in the toronto area ?

Challenger - You`ll wish You Hadn`t

Offline brads70

  • C-C.com Expert
  • ********
  • Posts: 18747
Re: What should the rod to floating pin clearance be?
« Reply #22 on: October 28, 2011 - 02:26:36 PM »
Now I am feeling bad about recommending them
 Is Beatty & Woods still in business in the toronto area ?

Ah.. not your fault! I just got in touch with Eric and he tried to say up to .002 was ok? :grinno:
I said how about I mail you back the rods and you send me another set and I'll take care of fitting the bushings, he agreed to that so that's what the plan is now. I'm gonna have to eat the postage but that's better/cheaper than bushing the rods . I hope?
Ya I haden't heard that name ( Beatty and Woods) in a long time. I have no idea if they are still in business or not? They were big time into Mopar engines at one point? I had seen a few stock car race engines that they had done. Nice work! ...... Sometimes a little TOO nice from a Tech inspectors point of view though?  :lol:
Brad
1970 Challenger 451stroker/4L60 auto OD
Barrie,Ontario,Canada
Proud to own one of the best cars ever made!!!!!

My restoration thread 
http://www.cuda-challenger.com/cc/index.php?topic=59072.0
 My handling upgrade post
http://www.cuda-challenger.com/cc/index.php?topic=73985.0

Offline Chryco Psycho

  • Administrator
  • C-C.com Guru
  • *****
  • Posts: 36620
  • 70 Challenger R/T SE 70 tube Chassis Cuda now sold
Re: What should the rod to floating pin clearance be?
« Reply #23 on: October 28, 2011 - 07:52:50 PM »
My 440 was done [machined] By B&W , it was an awesome build .

Challenger - You`ll wish You Hadn`t

Offline brads70

  • C-C.com Expert
  • ********
  • Posts: 18747
Re: What should the rod to floating pin clearance be?
« Reply #24 on: October 28, 2011 - 07:59:49 PM »
My 440 was done [machined] By B&W , it was an awesome build .

Just searched B&W on google....looks like they are still around?
Brad
1970 Challenger 451stroker/4L60 auto OD
Barrie,Ontario,Canada
Proud to own one of the best cars ever made!!!!!

My restoration thread 
http://www.cuda-challenger.com/cc/index.php?topic=59072.0
 My handling upgrade post
http://www.cuda-challenger.com/cc/index.php?topic=73985.0

Offline Chryco Psycho

  • Administrator
  • C-C.com Guru
  • *****
  • Posts: 36620
  • 70 Challenger R/T SE 70 tube Chassis Cuda now sold
Re: What should the rod to floating pin clearance be?
« Reply #25 on: October 28, 2011 - 08:01:38 PM »
you could check with them , see what clearance they recommend & what they would charge to bush the rods

Challenger - You`ll wish You Hadn`t

Offline brads70

  • C-C.com Expert
  • ********
  • Posts: 18747
Re: What should the rod to floating pin clearance be?
« Reply #26 on: October 28, 2011 - 08:25:42 PM »
you could check with them , see what clearance they recommend & what they would charge to bush the rods


Well my race engine builder buddy thats gonna be helping me assemble this engine saw how they balanced these rods and was like "WTF" :scared: ? So he said if you can get new rods ...please do!  Here are a couple pictures.....

Brad
1970 Challenger 451stroker/4L60 auto OD
Barrie,Ontario,Canada
Proud to own one of the best cars ever made!!!!!

My restoration thread 
http://www.cuda-challenger.com/cc/index.php?topic=59072.0
 My handling upgrade post
http://www.cuda-challenger.com/cc/index.php?topic=73985.0

Offline 72cudamaan

  • Resident
  • *****
  • Posts: 3248
Re: What should the rod to floating pin clearance be?
« Reply #27 on: October 29, 2011 - 08:28:29 AM »
Is it just the lighting or did they actually grind on the washered
part of the bolt too?  Seems a bit crude to me either way.
Did they even bother to grind on the weight pad? You know... the
spot on the end of the rod where you're SUPPOSED to grind ?  :banghead:
If I cant fix it, it's broke
 
Andy  (phukker whither)

Offline brads70

  • C-C.com Expert
  • ********
  • Posts: 18747
Re: What should the rod to floating pin clearance be?
« Reply #28 on: October 29, 2011 - 09:24:05 AM »
Is it just the lighting or did they actually grind on the washered
part of the bolt too?  Seems a bit crude to me either way.
Did they even bother to grind on the weight pad? You know... the
spot on the end of the rod where you're SUPPOSED to grind ?  :banghead:

Yep they ground on part of the bolt too? And on the side of the rod that determines rod clearance too.
ya... doesn't evoke warm fuzzy feelings doesn't it? :eek7:
I'm a mold maker by trade and I'm used to working in tenth's so I am a bit "anal" when it comes to measuring .... I thought at first that maybe I was being too picky... but no... don't think I'm the issue?
« Last Edit: October 29, 2011 - 09:26:15 AM by brads70 »
Brad
1970 Challenger 451stroker/4L60 auto OD
Barrie,Ontario,Canada
Proud to own one of the best cars ever made!!!!!

My restoration thread 
http://www.cuda-challenger.com/cc/index.php?topic=59072.0
 My handling upgrade post
http://www.cuda-challenger.com/cc/index.php?topic=73985.0

Offline 72cudamaan

  • Resident
  • *****
  • Posts: 3248
Re: What should the rod to floating pin clearance be?
« Reply #29 on: October 29, 2011 - 09:40:15 AM »
Seems strange... They have a good name. Wonder if maybe they had
a new guy doing the work and it didn't get qc checked?


If I cant fix it, it's broke
 
Andy  (phukker whither)