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> Foreign object inside cylinder, Worse than a chopstick
TheCabinetmaker
post Feb 16 2005, 07:20 PM
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A friend bought a 75 1.8L last summer and has been driving it daily since then. A month ago his motor developed a very loud knock. I said valve seat, but i was wrong. Here's what we found at teardown.



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TheCabinetmaker
post Feb 16 2005, 07:21 PM
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top of piston


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TheCabinetmaker
post Feb 16 2005, 07:23 PM
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the culprit. looks to be an engine tin screw.


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scotty b
post Feb 16 2005, 07:23 PM
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rust free you say ?
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(IMG:http://www.914world.com/bbs2/html/emoticons/unsure.gif) Is that a nail? (IMG:http://www.914world.com/bbs2/html/emoticons/confused24.gif)
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TheCabinetmaker
post Feb 16 2005, 07:26 PM
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It was obviously there for a time, as the plugs had not been out in a quite a while. How in the world did this thing roll around inside the cylinder for six months, and how the hell did it get stuck at the top of the head and not the bottom?
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scotty b
post Feb 16 2005, 07:31 PM
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Quick somebody call Robert Stack ! (IMG:http://www.914world.com/bbs2/html/emoticons/laugh.gif) I would guess that the head actually deteriorated at the exact spot that the screw was in and over time fell through the head and into the combustion chamber. (IMG:http://www.914world.com/bbs2/html/emoticons/screwy.gif) After all it is a 914!
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Joe Bob
post Feb 16 2005, 07:46 PM
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Magic Mushroom?
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Joe Ricard
post Feb 16 2005, 08:13 PM
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I had a 74 Super Beetle that I inherited from my Mother in Law. stock 1.6L Complaint was it ran really poor and was really loud!
So I looked at it and thought it was a bent valve or something. WhenI pulled it aprt found a cheese head screw holding the intake valve open. it was beat up pretty close to that. Probably bounced around on top of the valve for awhile till it finally lined up right to get inbetween the seat. Obviously Type IV's have enough cam lift to let the whole damn thing through.
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skline
post Feb 16 2005, 08:16 PM
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Well, it doesnt look like it was supposed to be in there. (IMG:http://www.914world.com/bbs2/html/emoticons/smile.gif) Remove the stray and put it back together and run it till it croaks and then do your rebuild. 75 1.8 liter is not the ideal engine so when you do rebuild, add some modifications. That is what I would do.
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TheCabinetmaker
post Feb 16 2005, 08:19 PM
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I figured it was dropped down the spark plug hole the last time the plug was out. You think its possible for a cheesehead to fit through an open valve? Hmm, there was also a 13mm nut laying under a pushrod. Looked like an adjuster nut, but none were missing.
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Joe Ricard
post Feb 16 2005, 08:19 PM
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DAmn don't know who has a cooler avatar me with the cone babe or Skylines stolen baby pic of me and mom.
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skline
post Feb 16 2005, 08:22 PM
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QUOTE (Joe Ricard @ Feb 16 2005, 06:19 PM)
DAmn don't know who has a cooler avatar me with the cone babe or Skylines stolen baby pic of me and mom.

LOL!!! Now that's funny, I assure you, it's not a pic of you and mommy. Its me for sure, and if you come to the WCC, I can prove it!! (IMG:http://www.914world.com/bbs2/html/emoticons/smile.gif)
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TheCabinetmaker
post Feb 16 2005, 08:24 PM
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Scott, putting it back together was my first thought also, but the damaged area is only a few mm from the plug hole.
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Joe Ricard
post Feb 16 2005, 08:27 PM
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It will be fine if you get all the steel bits out. If you are really concerned you can get a local shop TIG fill the hole in the head grind it smooth. It will last a long time.
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Gint
post Feb 16 2005, 08:42 PM
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Iszat a chopstick?
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tracks914
post Feb 16 2005, 09:01 PM
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What ever happened to chop stick boy anyway?
I missed the end result!!
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Bleyseng
post Feb 16 2005, 09:40 PM
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a good motto is "Always count your nuts after working on the engine. One, two.."
You don't want to lose them in the engine.


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Qarl
post Feb 16 2005, 09:42 PM
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My wife had my "object in her cylinder" on Valentines Day.. but that's a different story...

Now back to your regulary scheduled program.





Sorry... couldn't resist.
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markb
post Feb 16 2005, 09:49 PM
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QUOTE (Qarl @ Feb 16 2005, 07:42 PM)
My wife had my "object in her cylinder" on Valentines Day.. but that's a different story...

Now back to your regulary scheduled program.





Sorry... couldn't resist.

Way too much info ther, Karl. (IMG:http://www.914world.com/bbs2/html/emoticons/wink.gif)
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SLITS
post Feb 16 2005, 09:58 PM
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QUOTE (Bleyseng @ Feb 16 2005, 08:40 PM)
a good motto is "Always count your nuts after working on the engine. One, two.."
You don't want to lose them in the engine.


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Geoff

+ 2 to be sure
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