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| injunmort |
 Aug 1 2015, 05:39 PM
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#1
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Senior Member  Group: Members Posts: 1,024 Joined: 12-April 10 From: sugarloaf ny Member No.: 11,604 Region Association: North East States  |
I think I dropped a valve seat on my '71 1.7 dd. can I swap heads without removing engine?
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| jcd914 |
Aug 1 2015, 06:02 PM
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#2
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Advanced Member Group: Members Posts: 2,081 Joined: 7-February 08 From: Sacramento, CA Member No.: 8,684 Region Association: Northern California |
I suppose there is a chance it is possible.
I have seen and engine pulled without pulling the transmission. But there is no way it is worth it, the engine is just too easy to remove to mess with trying to leave it in. Simple work on the engine is hard to do with the engine installed, any major work and the engine should be pulled. Jim |
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| Spoke |
Aug 1 2015, 07:19 PM
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#3
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Jerry Group: Members Posts: 6,984 Joined: 29-October 04 From: Allentown, PA Member No.: 3,031 Region Association: None 
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QUOTE(jcd914 @ Aug 1 2015, 08:02 PM)  But there is no way it is worth it, the engine is just too easy to remove to mess with trying to leave it in. (IMG:style_emoticons/default/agree.gif) Before your first engine drop it seems like a major undertaking. When you finally drop the engine you'll realize it wasn't that hard. Probably a good time to look at the other head as well. |
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| bdstone914 |
Aug 1 2015, 09:55 PM
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#4
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bdstone914 Group: Members Posts: 4,524 Joined: 8-November 03 From: Riverside CA Member No.: 1,319 |
Pull the engine, do it right and do a valve job on both heads.
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| Dave_Darling |
Aug 1 2015, 10:36 PM
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#5
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914 Idiot Group: Members Posts: 14,990 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California
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It may be time to look for some new-to-you heads. The 1.7 ones should be fairly robust, not nearly as prone to seat dropping as the 2.0 heads. I'd be worried that other stuff had happened to cause the problem, and it may have caused more damage to both heads.
--DD |
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| TheCabinetmaker |
Aug 2 2015, 05:32 AM
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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 |
I must agree with the others. Much harder to pull heads with engine in car. Might not even be possible, but definitely more work. I don't believe they will clear the engine shelf.
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| 914Sixer |
Aug 2 2015, 07:10 AM
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#7
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914 Guru Group: Members Posts: 8,886 Joined: 17-January 05 From: San Angelo Texas Member No.: 3,457 Region Association: Southwest Region
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Do it right. Little pieces of metal went some where in the engine.
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| mepstein |
Aug 2 2015, 08:05 AM
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#8
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914-6 GT in waiting Group: Members Posts: 19,280 Joined: 19-September 09 From: Landenberg, PA/Wilmington, DE Member No.: 10,825 Region Association: MidAtlantic Region
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QUOTE(Spoke @ Aug 1 2015, 09:19 PM) QUOTE(jcd914 @ Aug 1 2015, 08:02 PM) But there is no way it is worth it, the engine is just too easy to remove to mess with trying to leave it in. (IMG:style_emoticons/default/agree.gif) Before your first engine drop it seems like a major undertaking. When you finally drop the engine you'll realize it wasn't that hard. Probably a good time to look at the other head as well. If I can drop an engine, anyone can. It was actually a very good learning experience and let me take care of some stuff that I might not have seen otherwise. |
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| injunmort |
Aug 2 2015, 10:01 AM
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#9
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Senior Member Group: Members Posts: 1,024 Joined: 12-April 10 From: sugarloaf ny Member No.: 11,604 Region Association: North East States |
thanks everyone, out comes the engine today
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| injunmort |
Aug 2 2015, 02:43 PM
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#10
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Senior Member Group: Members Posts: 1,024 Joined: 12-April 10 From: sugarloaf ny Member No.: 11,604 Region Association: North East States |
after further inspection, I still have 125 psi compression in all four cylinders. the rapping noise starts after the car warms up, no noise when starting cold. the throttle cable frayed a month ago and it over revved before I shut it down, I am wondering if I have a sticking valve from over rev that tightens up when the engine warms up. any thoughts would be appreciated. no metal in oil or filter.
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| Elliot Cannon |
Aug 2 2015, 04:33 PM
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#11
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914 Guru Group: Retired Members Posts: 8,487 Joined: 29-December 06 From: Paso Robles Ca. (Central coast) Member No.: 7,407 Region Association: None 
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Pull the engine. Have the heads done. (Bofovem) And while you're in there......
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| stugray |
Aug 3 2015, 10:52 AM
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#12
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Advanced Member Group: Members Posts: 3,824 Joined: 17-September 09 From: Longmont, CO Member No.: 10,819 Region Association: None |
First thing to do after an over-rev and suspicion of a dropping seat is to do a valve adjustment.
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