Rods..what are the plastic gage numbers to shoot for?, Rod bearing numbers |
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Rods..what are the plastic gage numbers to shoot for?, Rod bearing numbers |
0396 |
Sep 29 2013, 01:58 PM
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#1
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Advanced Member Group: Members Posts: 2,046 Joined: 13-October 03 From: L.A. Calif Member No.: 1,245 Region Association: Southern California |
I'm about to rebuild my first type 4 engine and about to install the rods on the crank.
I plan on " plastic " gaging them for their crush spec. For those before me / engine masters -(IMG:style_emoticons/default/smile.gif). What sort of numbers should I expect once I plastic gage them? ...using a 1.8 case with 2.0 crank and rods. This project has been on the back burner for over three years and it's gaining steam now. Thanks in advance for your guidance. (IMG:style_emoticons/default/piratenanner.gif) |
reharvey |
Sep 29 2013, 02:49 PM
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#2
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Senior Member Group: Members Posts: 573 Joined: 16-July 08 From: N. E. Ohio Member No.: 9,308 Region Association: North East States |
Something close to .002
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0396 |
Sep 29 2013, 03:52 PM
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#3
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Advanced Member Group: Members Posts: 2,046 Joined: 13-October 03 From: L.A. Calif Member No.: 1,245 Region Association: Southern California |
Thanks, any other suggestions out there-(IMG:style_emoticons/default/smile.gif)
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TheCabinetmaker |
Sep 29 2013, 04:42 PM
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#4
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I drive my car everyday Group: Members Posts: 8,300 Joined: 8-May 03 From: Tulsa, Ok. Member No.: 666 |
I'd have to look at my book to be sure, but that does ring a bell. Quick google search should tell you, or someone will be along with your real answer. I am sure that you want the green plastigauge.
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0396 |
Sep 29 2013, 05:15 PM
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#5
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Advanced Member Group: Members Posts: 2,046 Joined: 13-October 03 From: L.A. Calif Member No.: 1,245 Region Association: Southern California |
I'd have to look at my book to be sure, but that does ring a bell. Quick google search should tell you, or someone will be along with your real answer. I am sure that you want the green plastigauge. Thanks for the advice. As for Internet, I've tried that with out much success -(IMG:style_emoticons/default/sad.gif). Another thing you just taught me.....green plasticgauge never knew they can in different colors. I guess it must correspond to the spec that ones looking for. Thanks again |
TheCabinetmaker |
Sep 29 2013, 05:52 PM
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#6
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I drive my car everyday Group: Members Posts: 8,300 Joined: 8-May 03 From: Tulsa, Ok. Member No.: 666 |
Well, I checked earlier and I didn't find what I was looking for either. I'll look in my specs book tomorrow if no one weighs in.
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pcar916 |
Sep 29 2013, 06:57 PM
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#7
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Is that a Lola? Group: Members Posts: 1,523 Joined: 2-June 05 From: Little Rock, AR Member No.: 4,188 Region Association: None |
The product is called PlastiGage and it's been around... well, seems like forever. Make sure you get absolutely all of it when you're cleaning up. It'll ruin a bearing.
Good luck |
Michael RD |
Sep 30 2013, 10:04 AM
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#8
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Newbie Group: Members Posts: 34 Joined: 7-March 13 Member No.: 15,628 Region Association: None |
Plastiguage is like a precision wax. At a machine shop I worked at we included it with crank and brg. kits we sold. Green is what you want, the other is red for greater clearances. 002 - .0025 is correct for most applications. ( Haynes p-11 shows .0008 - .006 ) Lay appx. 1/4 - 3/8 lengthwise on the journal ,torque the nuts/cap then remove and guage it. DONT rotate the rod when torqued as this will tear it and provide inaccurate reading. It usually just scrapes off with a wipe of your fingernail.
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DBCooper |
Sep 30 2013, 12:13 PM
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#9
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14's in the 13's with ATTITUDE Group: Members Posts: 3,079 Joined: 25-August 04 From: Dazed and Confused Member No.: 2,618 Region Association: Northern California |
Make sure you get absolutely all of it when you're cleaning up. It'll ruin a bearing. Huh. I've never heard that before. I've used it for about 40 years now and I guess I do wipe it off after use, but it's supposed to be oil soluble and if I remember right is guaranteed not to harm an engine. Works well, I know, and has saved my ass more than once. |
0396 |
Sep 30 2013, 01:54 PM
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#10
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Advanced Member Group: Members Posts: 2,046 Joined: 13-October 03 From: L.A. Calif Member No.: 1,245 Region Association: Southern California |
Plastiguage is like a precision wax. At a machine shop I worked at we included it with crank and brg. kits we sold. Green is what you want, the other is red for greater clearances. 002 - .0025 is correct for most applications. ( Haynes p-11 shows .0008 - .006 ) Lay appx. 1/4 - 3/8 lengthwise on the journal ,torque the nuts/cap then remove and guage it. DONT rotate the rod when torqued as this will tear it and provide inaccurate reading. It usually just scrapes off with a wipe of your fingernail. Thanks! Just checked all the rods, they were .002 "Just learned .002-.0025 for most application" All, thanks again (IMG:style_emoticons/default/piratenanner.gif) |
Dave_Darling |
Sep 30 2013, 03:25 PM
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#11
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914 Idiot Group: Members Posts: 14,986 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California |
I think the Wilson book mentions a spec for Plastigauge?
(Book link at Amazon, since I didn't see it listed at Pelican: http://www.amazon.com/Rebuild-Volkswagen-a...lson+volkswagen ) Mine is packed in one of a dozen or more boxes labeled "BOOKS - DD", so I can't tell you what the spec is. --DD |
Jake Raby |
Sep 30 2013, 05:41 PM
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#12
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Engine Surgeon Group: Members Posts: 9,394 Joined: 31-August 03 From: Lost Member No.: 1,095 Region Association: South East States |
Buy a micrometer, and a bore gauge.
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DBCooper |
Sep 30 2013, 08:44 PM
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#13
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14's in the 13's with ATTITUDE Group: Members Posts: 3,079 Joined: 25-August 04 From: Dazed and Confused Member No.: 2,618 Region Association: Northern California |
Yup, if you build a lot of engines you need those tools, to know what you have and what you need. And feeler gauges, of course. If you're an amateur then you depend on your machinist and plastigauge. Trust, but verify. And feeler gauges.
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