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> Big backfire, 2.7L CIS from 1976 911
Kansas 914
post Jul 4 2020, 10:08 AM
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I tried to start the car as I normally do but back fired (pretty loud) I tried to re-start (it did this once before a few years ago) but this time it didn't restart.

I pulled the air cleaner cover and saw a hole in the filter and the pop-off valve was in pieces.

I haven't taken the air box off yet but that is next if I can't get the old pop-off valve out. It looks like the engine builder sealed the air box (and the pop-off valve) with some kind of "goop". Fun times...

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Kansas 914   Big backfire   Jul 4 2020, 10:08 AM
Kansas 914   RE: Big backfire   Jul 4 2020, 11:18 AM
sixnotfour   Well, better than the box blowing up...You should ...   Jul 4 2020, 12:15 PM
Kansas 914   Well, better than the box blowing up...You should...   Jul 4 2020, 12:45 PM
rgalla9146   Put the toilet seat back on ......see if it starts...   Jul 4 2020, 01:17 PM
914Toy   Also check the cross-over black rubber boot was no...   Jul 4 2020, 01:19 PM
rgalla9146   Put the toilet seat back on and see if it starts. ...   Jul 4 2020, 01:25 PM
Kansas 914   Put the toilet seat back on and see if it starts....   Jul 4 2020, 02:24 PM
windforfun   Too many spicy tacos. Happens to me all the time.   Jul 4 2020, 02:30 PM
Kansas 914   The old pop-off valve is SECURELY glued in place. ...   Jul 4 2020, 02:38 PM
sixnotfour   Got Gas ? in da tank.. $th of july   Jul 4 2020, 02:37 PM
sixnotfour   Type 4 sale.... dont come home with one..REDRUM.. ...   Jul 4 2020, 03:08 PM
Kansas 914   Type 4 sale.... dont come home with one..REDRUM.....   Jul 4 2020, 03:32 PM
sixnotfour   Just throw Carbs on it.. :idea: :lol4: :rotfl: ...   Jul 4 2020, 03:11 PM
Kansas 914   Just throw Carbs on it.. :idea: :lol4: :rotfl: ...   Jul 4 2020, 03:33 PM
porschetub   Just throw Carbs on it.. :idea: :lol4: :rotfl:...   Jul 4 2020, 03:49 PM
Kansas 914   Shit that was a big bang...blew the hinges on th...   Jul 5 2020, 08:33 AM
Kansas 914   @sixnotfour Jeff - I did as you suggested and go...   Jul 7 2020, 10:49 AM
sixnotfour   Did you notice,It was actually 180 out of proper f...   Jul 7 2020, 01:07 PM
Kansas 914   Did you notice,It was actually 180 out of proper ...   Jul 7 2020, 01:11 PM
rgalla9146   The hinge should be at the rear of the plenum clos...   Jul 7 2020, 03:44 PM
Kansas 914   The hinge should be at the rear of the plenum clo...   Jul 7 2020, 03:48 PM


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