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Old 05-04-2013, 03:21 PM   #1
boostkreeep
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Default Separating Connecting Rod Cap

I building my first motor I started to take apart the rods to measure the rod bearings clearance. I took the rod bolts off and I cannot get the lower part of the rod off. Any ideas on how to take this off without destroying the rod. Is there a special tool? I am stoopped. See below


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Last edited by boostkreeep; 05-04-2013 at 03:30 PM.
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Old 05-04-2013, 10:43 PM   #2
kakarot09
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Pull harder
I usually can get them just wiggling and pulling at the same time. But I use a jaw hoist to hold stuff while I work so it's usually stable. Can also try a can of compressed air upside down on one part and a torch on the other to heat and cool so that it creates a gap. Have you got any of them apart?
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Old 05-05-2013, 10:21 AM   #3
Paul
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put the bolts back in then back them out a couple turns. Tap the bolt head with rubber hammer
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Old 05-05-2013, 11:18 AM   #4
sense of nature
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Quote:
Originally Posted by Paul View Post
put the bolts back in then back them out a couple turns. Tap the bolt head with rubber hammer
^ This...
Nice rods BTW
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Old 05-05-2013, 04:02 PM   #5
Juice66
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Brass hammer
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Old 05-05-2013, 05:30 PM   #6
boostkreeep
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Eureka got them apart, made press with some aluminum bar stock wrapped in duct tape and a bolt. Is there any thing I can do to make easier separation when checking that bearing clearance, anti seize, oil ?

Last edited by boostkreeep; 05-05-2013 at 06:16 PM.
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Old 05-05-2013, 09:53 PM   #7
ckyguy68
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Here's what I do.

Place the cap end of the rod in a vise with a towel to protect the clamping area. Back out the bolts almost all the way. Put a socket on top of the bolt head to protect it and give it a few taps on either side with a hammer. Should come apart easily.
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Old 05-05-2013, 11:44 PM   #8
aboothman
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Quote:
Originally Posted by Paul View Post
put the bolts back in then back them out a couple turns (1/4"). Tap the bolt head with rubber hammer
This is the correct way according to the manufacturers whose rods I have used
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Old 05-06-2013, 01:31 AM   #9
triplehrace
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Quote:
Originally Posted by aboothman View Post
This is the correct way according to the manufacturers whose rods I have used
This is the best way for all rods.
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Old 05-06-2013, 05:28 AM   #10
boostkreeep
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That makes I lot of sense when its on the crank shaft, so a brass hammer or rubber sounds like its the ticket
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