Re: Rebuilding an 84/79 QT50

Geoffrey C /
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Alright, so what you just said is what I have always known to do. I've never personally done the honing, but I have been told to run up to hardbor and grab this little device that doesnt so much hone as it does clean everything propperly.

This brings me to yesterday, I call a place that's done a bunch of PW engines and run by them what's going on and he tells me, "If your cylinder looks good, buff the carbon out of the the head and the top of the piston, DO NOT TOUCH the cylinder walls with anything, throw in a new set of rings and bolt her back up."

So you are of the opinion that running the device through the cylinder for 3-4 minutes is a good idea? I hate conflicting advice when the one I've always practiced seems right, but the person I hear the other from is experienced....

Maybe you're him, but do we have a master QT50 Engine builder around here???

> P D Wrote:

> -------------------------------------------------------

> You're measuring the very top edge of the bore .

>

> That's the part that rarely wears any at all .

>

> Much better to take measurements incrementally down through the complete

> bore .

>

> Like at the 1/4 , then 1/2 and 3/4 down .

>

> Normally the bore will be a touch larger at the bottom .

>

> You can do the same on the piston .

>

> By the time you're done , you'll know the piston to bore clearance (

> important information ) .

>

> If you install new ring(s) , be sure to hone in a decent crosshatch or

> the new will not seat .

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Subject Written By Posted
  Rebuilding an 84/79 QT50Topic by: Geoffrey C Geoffrey C 07/18/20 10:18PM
  Re: Rebuilding an 84/79 QT50Re: Geoffrey C Geoffrey C 07/18/20 10:21PM
  Re: Rebuilding an 84/79 QT50Re: Jack Rutherford Jack Rutherford 07/19/20 01:29AM
  Re: Rebuilding an 84/79 QT50Re: Geoffrey C Geoffrey C 07/20/20 09:11PM
  Re: Rebuilding an 84/79 QT50Re: Geoffrey C Geoffrey C 07/20/20 09:52PM
  Re: Rebuilding an 84/79 QT50Re: Geoffrey C Geoffrey C 07/20/20 10:32PM
  Re: Rebuilding an 84/79 QT50Re: Geoffrey C Geoffrey C 07/21/20 12:17AM
  Re: Rebuilding an 84/79 QT50Re: P D P D 07/21/20 07:45AM
  Re: Rebuilding an 84/79 QT50Re: Geoffrey C Geoffrey C 07/22/20 08:35AM
  Re: Rebuilding an 84/79 QT50Re: P D P D 07/22/20 09:07AM
  Re: Rebuilding an 84/79 QT50Re: Jack Rutherford Jack Rutherford 07/22/20 12:52PM
  Re: Rebuilding an 84/79 QT50Re: Geoffrey C Geoffrey C 07/21/20 05:05PM
  Re: Rebuilding an 84/79 QT50Re: Geoffrey C Geoffrey C 07/22/20 09:26AM
  Re: Rebuilding an 84/79 QT50Re: P D P D 07/22/20 09:51AM
  Re: Rebuilding an 84/79 QT50Re: Geoffrey C Geoffrey C 07/22/20 12:04PM
  Re: Rebuilding an 84/79 QT50Re: Geoffrey C Geoffrey C 07/22/20 12:05PM
  Re: Rebuilding an 84/79 QT50Re: P D P D 07/22/20 12:38PM
  Re: Rebuilding an 84/79 QT50Re: Geoffrey C Geoffrey C 07/22/20 01:01PM
  Re: Rebuilding an 84/79 QT50Re: Geoffrey C Geoffrey C 07/22/20 09:20PM
  Re: Rebuilding an 84/79 QT50Re: P D P D 07/23/20 08:09AM
  Re: Rebuilding an 84/79 QT50Re: Jack Rutherford Jack Rutherford 07/25/20 10:55AM
  Re: Rebuilding an 84/79 QT50Re: Jack Rutherford Jack Rutherford 07/25/20 11:13AM
  Re: Rebuilding an 84/79 QT50Re: Geoffrey C Geoffrey C 07/25/20 05:52PM
  Re: Rebuilding an 84/79 QT50Re: Jack Rutherford Jack Rutherford 07/25/20 07:19PM
  Re: Rebuilding an 84/79 QT50Re: Stephen Keller Stephen Keller 07/31/20 11:09PM
  Re: Rebuilding an 84/79 QT50Re: Geoffrey C Geoffrey C 08/01/20 01:40PM
  Re: Rebuilding an 84/79 QT50Re: Jack Rutherford Jack Rutherford 08/01/20 03:13PM
  Re: Rebuilding an 84/79 QT50Re: Geoffrey C Geoffrey C 08/01/20 05:16PM
  Re: Rebuilding an 84/79 QT50Re: Geoffrey C Geoffrey C 07/23/20 10:40AM
  Re: Rebuilding an 84/79 QT50Re: Geoffrey C Geoffrey C 07/24/20 01:49PM
  Re: Rebuilding an 84/79 QT50Re: Geoffrey C Geoffrey C 07/24/20 07:38PM
  Re: Rebuilding an 84/79 QT50Re: Stephen Keller Stephen Keller 07/24/20 10:21PM
  Re: Rebuilding an 84/79 QT50Re: Geoffrey C Geoffrey C 07/24/20 10:39PM
  Re: Rebuilding an 84/79 QT50Re: Stephen Keller Stephen Keller 07/25/20 12:59AM
  Re: Rebuilding an 84/79 QT50Re: Geoffrey C Geoffrey C 07/25/20 12:27PM
  Re: Rebuilding an 84/79 QT50Re: Geoffrey C Geoffrey C 07/25/20 12:57PM
  Re: Rebuilding an 84/79 QT50Re: Jack Rutherford Jack Rutherford 07/25/20 02:57PM
  Re: Rebuilding an 84/79 QT50Re: Geoffrey C Geoffrey C 07/27/20 02:43PM
  Re: Rebuilding an 84/79 QT50Re: Geoffrey C Geoffrey C 07/27/20 08:20PM
  Re: Rebuilding an 84/79 QT50Re: Geoffrey C Geoffrey C 07/27/20 08:41PM
  Re: Rebuilding an 84/79 QT50Re: P D P D 07/27/20 09:35PM
  Re: Rebuilding an 84/79 QT50Re: Geoffrey C Geoffrey C 07/27/20 09:56PM
  Re: Rebuilding an 84/79 QT50Re: Geoffrey C Geoffrey C 07/28/20 09:56PM
  Re: Rebuilding an 84/79 QT50Re: Mark Kinsler Mark Kinsler 07/29/20 12:21AM
  Re: Rebuilding an 84/79 QT50Re: Geoffrey C Geoffrey C 07/29/20 06:58AM
  Re: Rebuilding an 84/79 QT50Re: Mark Kinsler Mark Kinsler 07/29/20 01:08PM
  Re: Rebuilding an 84/79 QT50Re: Geoffrey C Geoffrey C 07/29/20 01:11PM
  Re: Rebuilding an 84/79 QT50Re: Mark Kinsler Mark Kinsler 07/29/20 01:16PM
  Re: Rebuilding an 84/79 QT50Re: Geoffrey C Geoffrey C 07/29/20 07:34PM
  Re: Rebuilding an 84/79 QT50Re: Geoffrey C Geoffrey C 07/29/20 09:58PM
  Re: Rebuilding an 84/79 QT50Re: Geoffrey C Geoffrey C 07/30/20 11:56PM
  Re: Rebuilding an 84/79 QT50Re: Geoffrey C Geoffrey C 07/31/20 10:20PM
  Re: Rebuilding an 84/79 QT50Re: Geoffrey C Geoffrey C 08/01/20 05:17PM
  Re: Rebuilding an 84/79 QT50Re: Geoffrey C Geoffrey C 08/02/20 09:13PM
  Re: Rebuilding an 84/79 QT50Re: Geoffrey C Geoffrey C 08/02/20 09:26PM
  Re: Rebuilding an 84/79 QT50Re: Geoffrey C Geoffrey C 08/07/20 09:43PM
  Re: Rebuilding an 84/79 QT50Re: Geoffrey C Geoffrey C 08/09/20 02:53PM

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