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Author Topic: cyl stud spacers  (Read 2920 times)

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Yellow09SERG

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cyl stud spacers
« on: November 14, 2015, 10:43:13 AM »
Can anyone give me the dimensions of the spacers that are used to torque the jugs to the case without the heads to measure piston to deck height.
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HD Street Performance

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Re: cyl stud spacers
« Reply #1 on: November 14, 2015, 10:45:31 AM »
I use some old wrist pins and the long bolts. Just need 2 and don't torque them to full torque. Cutting PVC pipe will work too. Sorry I don't have dimensions.
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Yellow09SERG

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Re: cyl stud spacers
« Reply #2 on: November 14, 2015, 10:56:15 AM »
Thank you Don. I had brass pipe nipples in mind trimmed to the correct lenght, but if pvc is strong enough then that is easy too
« Last Edit: November 14, 2015, 11:07:00 AM by Yellow09SERG »
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HILLSIDECYCLE.COM

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Re: cyl stud spacers
« Reply #3 on: November 14, 2015, 11:08:35 AM »
I manufactured about a dozen or so, shouldered nuts, here, many years ago to allow those to be clamped in place while the heads were off.
BTW, Snap-On has something semi-similar.
Scott
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Yellow09SERG

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Re: cyl stud spacers
« Reply #4 on: November 14, 2015, 11:24:34 AM »
Thank you Scott. I have to spend 40 hours in our machine shop at work next week for my yearly recert and that building a set might kill some empty time slot
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HD Street Performance

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Re: cyl stud spacers
« Reply #5 on: November 14, 2015, 04:12:51 PM »
They just have to work, no need to get fancy. Use schedule 80 pvc nipples, may get lucky and not have to cut them.
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Twolanerider

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Re: cyl stud spacers
« Reply #6 on: November 14, 2015, 08:17:27 PM »
Don't remember the dimensions.  In fact not sure I ever did much more than just hold up a piece of plastic and mark it but the plastic pipe will work fine.  Never used anything fancier.
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Yellow09SERG

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Re: cyl stud spacers
« Reply #7 on: November 14, 2015, 09:59:18 PM »
Thank you all. PVC it is
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HILLSIDECYCLE.COM

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Re: cyl stud spacers
« Reply #8 on: November 16, 2015, 06:24:17 AM »
Quote from: HILLSIDECYCLE.COM on November 14, 2015, 11:08:35 AM
I manufactured about a dozen or so, shouldered nuts, here, many years ago to allow those to be clamped in place while the heads were off.
BTW, Snap-On has something semi-similar.
Scott

When you do it every day, good tools make it so much nicer.
Scott
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GMR-PERFORMANCE

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Re: cyl stud spacers
« Reply #9 on: November 16, 2015, 03:27:33 PM »
Quote from: Yellow09SERG on November 14, 2015, 11:24:34 AM
Thank you Scott. I have to spend 40 hours in our machine shop at work next week for my yearly recert and that building a set might kill some empty time slot

Buy a extra cylinder head bolts and machine them down run a copper or aluminum washer.. I had a bunch of old head bolts, trimmed them down and used copper washers works nicely . Or the PVC route ..


Or build a bridge to allow the indicator to slide into. Plenty of guys have done that as well.. For a HD if you use the stock bolts and two spacers under it with a hole on the edge of cylinder and one for piston you have a one in all tool. There where some nice pics posted of a few different bridges,,  I have a aluminum bar stock and use the stock outer bolts with spacers. That pic of just from google as i do not think i have a pic of the one I built set up. but you get the idea.

Lets see what your spare time builds  :2vrolijk_21:
« Last Edit: November 16, 2015, 03:45:27 PM by GMR-PERFORMANCE »
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HILLSIDECYCLE.COM

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Re: cyl stud spacers
« Reply #10 on: November 17, 2015, 12:24:08 PM »
A bridge is a piece-o-cake to manufacture.
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hrdtail78

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Re: cyl stud spacers
« Reply #11 on: November 17, 2015, 12:35:57 PM »




I made mine 1.375 and use the short bolts.  The diameter started bigger and got cut down a couple of times for bigger bore stuff.  The final dimension now is .837 and does work for the 131 TC engine I assembled.  Looking at a stock TC head.  The casting is about 1.4 something thick on the plug side of the head.


Sent from my iPhone using Tapatalk
« Last Edit: November 17, 2015, 12:41:47 PM by hrdtail78 »
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Yellow09SERG

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Re: cyl stud spacers
« Reply #12 on: November 17, 2015, 01:33:52 PM »

I made mine 1.375 and use the short bolts.  The diameter started bigger and got cut down a couple of times for bigger bore stuff.  The final dimension now is .837 and does work for the 131 TC engine I assembled.  Looking at a stock TC head.  The casting is about 1.4 something thick on the plug side of the head.


Sent from my iPhone using Tapatalk
[/quote]

I am guessing that the major diameter is a piece of 1"? The .837 diameter looks to be cut back about the thickness of you caliper blade..... .125 or so?
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hrdtail78

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Re: cyl stud spacers
« Reply #13 on: November 17, 2015, 02:01:38 PM »
Yeah, it is 1.25 at the big part.  Only reason for that was, that is the scrap round stock I had.  I saw no benefit of taking the time and doing more to it than the step I made.  Which is .125 deep.  Plenty of room for any piston coming out of the hole.
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Yellow09SERG

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Re: cyl stud spacers
« Reply #14 on: November 17, 2015, 09:42:42 PM »
Quote from: hrdtail78 on November 17, 2015, 02:01:38 PM
Yeah, it is 1.25 at the big part.  Only reason for that was, that is the scrap round stock I had.  I saw no benefit of taking the time and doing more to it than the step I made.  Which is .125 deep.  Plenty of room for any piston coming out of the hole.

Thank you. I bet I have something close to that next week. Then guess I will have to figure out what to do with them.....lol
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