White RZ disassembly

Kawtriplefreak · June 29, 2024, 11:37:52 PM

Had time today to get the head off and see the carnage.

Head is undamaged except for less than optimal threads in the LH sparkplug hole.
It will get timeserts.

I smacked the piston with my trusty ball-peen. No joy. Stuck tight. Alternate methods will be used.

m in sc · June 30, 2024, 11:40:58 AM

I think Neil Armstrong walked on that piston.

Evans Ward · June 30, 2024, 01:21:31 PM

Wow! Sure got hot and expanded. And.. Piston crown does resemble the lunar surface.

Kawtriplefreak · June 30, 2024, 06:16:18 PM

Yep it's toasty

STLMike · July 04, 2024, 01:18:57 AM

Quote from: m in sc on June 30, 2024, 11:40:58 AMI think Neil Armstrong walked on that piston.

Kawtriplefreak · July 13, 2024, 12:24:35 AM

A bit of gentle persuasion with a big truck lug wrench and a couple of licks with a good sized hammer and the piston moved.

Kawtriplefreak · July 13, 2024, 12:31:32 AM

So far damage to the bore appears minimal. Some scoring but nothing I can catch a fingernail on or aluminum on the bore If time permits tomorrow I hope to continue to prep the cylinders for removal.

Kawtriplefreak · July 13, 2024, 12:35:30 AM

Took some PB Blaster and a rag to the RH piston so I could see what size it is.
.25

Kawtriplefreak · July 20, 2024, 02:36:05 AM

Had a couple hours of shop time today so I did my 1st time ever top end removal on an RZ. Investigation determined the seizure is actually a nearly locked big end rod bearing on the left cylinder. It was a challenge to get it apart.

Minimal if any damage to the bore. Some slight ridges on the exhaust port side but nothing you can catch a fingernail on. If time permits tomorrow I will continue disassembly.

m in sc · July 20, 2024, 06:41:55 AM

well since the crank was going to be replaced anyway, this is good. got lucky the rod didn't go way off enter on the bearing and punch a hole in the case.

Kawtriplefreak · July 20, 2024, 11:33:50 AM

Very lucky indeed. On we go. I hope to do some more tear-down this afternoon.

85RZwade · July 20, 2024, 11:52:38 AM

Could have been a lot worse!

Kawtriplefreak · July 20, 2024, 06:38:53 PM

The LH crank seal.

Kawtriplefreak · July 20, 2024, 06:42:09 PM

Thank God for the sprocket tooI bought from Rick Brett 20 years ago. Sprocket, hardware and the spacer behind it bagged and tagged.

Kawtriplefreak · July 20, 2024, 06:53:10 PM

Left side stripped. The rotor was uncooperative at first but the 1/2 inch drive impact on the puller convinced it.

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White RZ disassembly