 Push rod tubes, Are the late and early different? |
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| worn |
 Mar 28 2014, 02:41 PM
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Winner of the Utah Twisted Joint Award  Group: Members Posts: 3,383 Joined: 3-June 11 From: Madison, WI Member No.: 13,152 Region Association: Upper MidWest 
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I am remembering a tread sometime back that suggested ther might be different sized push rod oil return tubes. I as be causr I put tubes from a 1.7 onto a 2.0 build. The case is a match but the heads are new. Why yes, I am having leaks. Excuse me, I will clean that up...
Any help? |
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| Dave_Darling |
Mar 28 2014, 03:56 PM
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914 Idiot Group: Members Posts: 15,075 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California
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The early 1.7 heads had smaller bores for the push rod tubes. So the outer end (only!) of the tube was smaller. Later 1.7s, and all 1.8s and 2.0s, had the larger size outer ends.
I'm a bit surprised that a 72 had the small-hole heads; I had thought it was confined to 1970 and maybe some of 1971. The inboard ends were all the same size. --DD |
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| bdstone914 |
Mar 28 2014, 05:32 PM
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#3
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bdstone914 Group: Members Posts: 4,744 Joined: 8-November 03 From: Riverside CA Member No.: 1,319 |
QUOTE(Dave_Darling @ Mar 28 2014, 02:56 PM)  The early 1.7 heads had smaller bores for the push rod tubes. So the outer end (only!) of the tube was smaller. Later 1.7s, and all 1.8s and 2.0s, had the larger size outer ends. I'm a bit surprised that a 72 had the small-hole heads; I had thought it was confined to 1970 and maybe some of 1971. The inboard ends were all the same size. --DD We had two engines and the car was a 72. Can't confirm the heads were 72. |
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Posts in this topic
worn Push rod tubes Mar 28 2014, 02:41 PM
bdstone914 Yes there are two sizes. Put together a 72 1.7 and... Mar 28 2014, 02:47 PM
worn
The early 1.7 heads had smaller bores for the pus... Mar 28 2014, 09:10 PM Racer Chris
Ibet I get better results if I buy new tubes.
I... Mar 29 2014, 09:35 AM lonewolfe
Ibet I get better results if I buy new tubes.
... Mar 29 2014, 01:48 PM stugray Anyone know how to tell the two kinds apart?
I ass... Mar 29 2014, 06:05 PM jaxdream That would be a helpful thing to know what the dia... Mar 30 2014, 07:34 AM |
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