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> Unhappy sound in engine
cwpeden
post Apr 29 2014, 11:48 PM
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Great White North, huh?
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When did you put the rain hats on? Did it require a stud change?
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vw_porsche
post Apr 30 2014, 10:58 AM
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QUOTE(cwpeden @ Apr 30 2014, 12:48 AM) *

When did you put the rain hats on? Did it require a stud change?


I put the rain hats on when I built the engine 3500+ miles ago.
It did not require a stud change.
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yeahmag
post Apr 30 2014, 11:16 AM
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What the hell was I thinking? You're right. We all need an excuse to buy tools!

QUOTE(r_towle @ Apr 29 2014, 06:15 PM) *

QUOTE(yeahmag @ Apr 29 2014, 08:54 PM) *

I personally don't see the need for a borescope. That has to come off and the valve seats redone anyway. You'll get a good look at the piston then.

It's a perfectly good reason to go to the tool store and buy a new tool.

WTF is wrong with you?
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cwpeden
post Apr 30 2014, 12:01 PM
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I guess all we have left is sabotage.... (IMG:style_emoticons/default/smash.gif)
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rgalla9146
post Apr 30 2014, 12:04 PM
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QUOTE(vw_porsche @ Apr 29 2014, 09:20 PM) *

QUOTE(stugray @ Apr 29 2014, 08:15 PM) *

How about the screws that hold the butterfly valve in place?
Looks like too much material, but worth a shot.

Other explanation could be some piece that had been left inside somewhere and just now got knocked loose.


I checked the butterfly screws too.

I have 3500+ miles since rebuild. Odd it waiting so long to come loose.


Inspect all the soft seals of the air filters for possible impressions of hardware that was caught during assembly. And eventually got loose.
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toolguy
post Apr 30 2014, 12:50 PM
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Comparing them to the size of the thread stitching makes me believe this was very small
threaded part. . . Next logical thing is the best bet is it was once all one part. . doesn't malke sense
that multiple items all similar fell in the carb at the same time. . . .. . The next puzzling thing to me is that for this to make it past the throttle plates, I'd think you would have have a previous issue with the butterflys being held open and an extremely high idle. . unless the part came loose while the throttle was open, which was what you described. .
But for something to have come thru the air filters, or around them, and then to have made it up over the velocity stacks doesn't seem likely. . . I'd look more closely at the carb. .
Maybe lay all the parts out and try to reconstruct what it looked like before getting smashed, next to a ruler so we can get an idea of what it's size was. .
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vw_porsche
post Apr 30 2014, 01:51 PM
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Here is a better picture of the pieces I found in the intake and the damage done to the head, piston, and cylinder.
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yeahmag
post Apr 30 2014, 02:01 PM
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Show us the spark plug.
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vw_porsche
post Apr 30 2014, 02:10 PM
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Can't get a Pic of that at the moment (at work) but the Spark Plug is intact aside from being beat to heck and back. I'll try to get one later this evening.
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Qarl
post Apr 30 2014, 03:28 PM
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That will buff right out.

OUCH... that looked painful. I bet your heart sank.
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toolguy
post May 5 2014, 09:20 AM
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(IMG:style_emoticons/default/blink.gif) any updates what it was ??
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vw_porsche
post May 5 2014, 09:33 AM
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QUOTE(toolguy @ May 5 2014, 10:20 AM) *

(IMG:style_emoticons/default/blink.gif) any updates what it was ??


No, I have no idea what it was.
I've looked all over the carb for anything missing. And the engine looking for missing tin screws or anything else that looks out of place.
I did a few tests seeing if any of the tin screws or bolts would even fit down the carb. Unless the stars were just aligned perfectly, they will not. I couldn't get anything to drop through the carb.
I'm at a loss. Very very weird.
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ThePaintedMan
post May 5 2014, 09:37 AM
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What kind of air filters were you using? If foam, it's possible that somehow a bolt was wedged in between the foam and the screen but you never saw it. Then eventually it worked its way loose. I'm sorry to see the damage, but rest assured that you're certainly not the first or last person to have it happen to them.
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Mblizzard
post May 5 2014, 09:42 AM
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Done it! Sucks but I got the t-shirt.

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vw_porsche
post May 5 2014, 09:47 AM
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QUOTE(ThePaintedMan @ May 5 2014, 10:37 AM) *

What kind of air filters were you using? If foam, it's possible that somehow a bolt was wedged in between the foam and the screen but you never saw it. Then eventually it worked its way loose. I'm sorry to see the damage, but rest assured that you're certainly not the first or last person to have it happen to them.


I have these filters with rain hats on top.

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