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no, the valves all look OK, but i thought we(in the collective list sense) decided that the valve overlap from the performance cam and the short intake manifolds was causing #'s 1 and 3 to run excessively lean. i figured since i had it torn down this far i might as well change cams Brandon ----- Original Message ----- From: Keith Park <TopNotchResto@worldnet.att.net> To: whizby <whizby@pdq.net> Sent: Tuesday, April 06, 1999 12:20 PM Subject: Re: [T3] how far? | 6000 miles isnt worth cracking the case, heck 60000 isnt eather if things | are built right. did you swallow a valve?? | | Keith | ---------- | > From: whizby <whizby@pdq.net> | > To: type!!! <type3@vwtype3.org> | > Subject: [T3] how far? | > Date: Monday, April 05, 1999 2:42 PM | > | > something bad happened. the other night i was driving home from work when | i | > hear this nasty explosion noise, lose power and hear this loud putt putt | > noise like i shot out a spark plug( unfortunately a familiar noise on my | > bug). i pulled over and checked things out. noise seems to be coming from | > right side, all sparkplugs firmly in place, all valve springs still | there, | > nothing seems to tight or too loose in the valve train region. it wont | idle | > , but will run if i give it a little gas. so i limp it home and check it | out | > in the day light. | > #1 spark plug gap has been closed, I'm thinking something broke off in | the | > cylinder and really messed things up, but further search reveals no | foreign | > matter. the piston top and combustion chamber is all torn up like | something | > small was bouncing around in there. could detonation do that? | > bottom line: i gotta rebuild. i want to swap camshafts, since I've got it | > torn down this far and go back toøbrind and hopefully fix my #'s 1 | and | > 3 lean problem. how much should i replace. new cam and lifters, of | course, | > but new cam bearings? main bearings, rod bearings? rings? this engine | has a | > little over 6000 miles on it! it still has the hone marks on the cylinder | > walls. i haven't cracked open the case yet so i don't know if anything is | > obviously damaged, I'll be doing that soon and of course then I'll know | > more, but should 6K miles worth of wear warrant new bearings? | > | > Brandon | > 73 broken(again)square | > | > | > | > ------------------------------------------------------------------- | > List info at http://www.vwtype3.org/list or mailto:help@vwtype3.org