 Lime Rock June 10-11 SCCA National, Madsen, Foley, Givler represent'n |
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| ChrisFoley |
 Jun 12 2005, 08:41 AM
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#21
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I am Tangerine Racing  Group: Members Posts: 7,968 Joined: 29-January 03 From: Bolton, CT Member No.: 209 Region Association: None 
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and a pic of Ed Givler's car on the pre-grid.
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| ChrisFoley |
Jun 12 2005, 08:49 AM
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#22
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I am Tangerine Racing Group: Members Posts: 7,968 Joined: 29-January 03 From: Bolton, CT Member No.: 209 Region Association: None
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Here I am waiting for the 5 minute signal to get ready.
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| ChrisFoley |
Jun 12 2005, 08:50 AM
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#23
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I am Tangerine Racing Group: Members Posts: 7,968 Joined: 29-January 03 From: Bolton, CT Member No.: 209 Region Association: None
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all strapped in and ready for action.
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| mskala |
Jun 12 2005, 08:53 AM
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#24
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R Group: Members Posts: 1,927 Joined: 2-January 03 From: Massachusetts Member No.: 79 Region Association: None
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Sorry to hear about you guys' misfortune. Good write-up
anyway. |
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| jd74914 |
Jun 12 2005, 11:39 AM
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#25
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Its alive Group: Members Posts: 4,818 Joined: 16-February 04 From: CT Member No.: 1,659 Region Association: North East States |
(IMG:http://www.914world.com/bbs2/html/emoticons/agree.gif) Chris, any idea of the cause of your ignition problems? |
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| ChrisFoley |
Jun 12 2005, 11:46 AM
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#26
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I am Tangerine Racing Group: Members Posts: 7,968 Joined: 29-January 03 From: Bolton, CT Member No.: 209 Region Association: None
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When I installed the new Hyfire CD Ignition I also installed an old Crane PS-92 coil, made for use with CD ignitions. The coil was the problem on Friday. When I replaced it with the coil I had been using the spark problem went away. Unfortunately during the race I had an intermittent miss that seemed to be a carb problem instead. This morning I opened up the left carb and found a tiny rock in the bottom of the float bowl next to the #2 emulsion tube well. It was just the right size to get sucked up against the main jet in right turns. (IMG:http://www.914world.com/bbs2/html/emoticons/wacko.gif) (IMG:http://www.914world.com/bbs2/html/emoticons/sad.gif) |
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| jd74914 |
Jun 12 2005, 12:31 PM
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#27
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Its alive Group: Members Posts: 4,818 Joined: 16-February 04 From: CT Member No.: 1,659 Region Association: North East States |
I was wondering if the miss was a spark problem, but evidently not. Having a rock stuck on the carb jet is really strange (IMG:http://www.914world.com/bbs2/html/emoticons/wacko.gif) |
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| Thorshammer |
Jun 12 2005, 01:40 PM
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#28
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Senior Member Group: Members Posts: 749 Joined: 11-November 03 Member No.: 1,335 |
I won't be making Beaverun!
After some checking it appears i have broken a cam shaft between the center and the rear cam journal the camshaft is just loose in the housing. So the entire engine must come apart. Time to change cam grinders, Maybe this is a cam tower issue, but they felt really good when I assembled the motor. We'll see. Hope to make it for Watkins Glen. What a bummer! All the heads and everything else seems to be in good condition. So we'll see if a housing and a camshaft will fix what is ailing me. I have all the parts except the camshaft. I have that as a core. Pics later. Erik Madsen |
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| ChrisFoley |
Jun 12 2005, 01:55 PM
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#29
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I am Tangerine Racing Group: Members Posts: 7,968 Joined: 29-January 03 From: Bolton, CT Member No.: 209 Region Association: None
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That is a shame! (IMG:http://www.914world.com/bbs2/html/emoticons/sad.gif) Actually, I'm on the fence about going myself. It's an expensive trip including over 1000 miles total travel. I won't have my good engine yet, my old tires aren't getting the job done, and there are 12 FP cars pre-entered. I don't need to spend $1500 just for 3 or 4 points, even though I'd like to race there. |
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| ChrisFoley |
Jun 12 2005, 03:51 PM
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#30
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I am Tangerine Racing Group: Members Posts: 7,968 Joined: 29-January 03 From: Bolton, CT Member No.: 209 Region Association: None
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Oh yeah. I forgot about the final kick in the ass I had yesterday.
On the way home I had a truck tire blow out (again). This was the spare I put on outside Wash. DC in March. It went a little over 2000 miles before giving up. Buying a couple of truck tires is another expense I have to absorb before attending my next race. (IMG:http://www.914world.com/bbs2/html/emoticons/headbang.gif) |
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| Thorshammer |
Jun 12 2005, 09:14 PM
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#31
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Senior Member Group: Members Posts: 749 Joined: 11-November 03 Member No.: 1,335 |
I am always one to promote personal responsibility! Own your actions and guide your life accordingly. However this camshaft failure I can't swallow as mine. It appears that when the cam was ground that a small radius groove was cut on all of the cam journals. This created a stress riser and caused this failure. The Cam tower housing is in near perfect condition with no odd wear patterns except the damage from where the cam shaft broke (it is limited) with some 600 grit on the edge of the aluminum journal it is re-useable. I will be calling the cam grinder in the AM. And Next Day airing him the broken camshaft. Really kind of pisses me off. Could have done without this problem. But thats racing. See the pics.
Erik Attached image(s) 
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| Thorshammer |
Jun 12 2005, 09:18 PM
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#32
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Senior Member Group: Members Posts: 749 Joined: 11-November 03 Member No.: 1,335 |
Not the best focus job, but you get the idea.
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| TimT |
Jun 12 2005, 09:18 PM
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#33
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retired Group: Members Posts: 4,033 Joined: 18-February 03 From: Wantagh, NY Member No.: 313 |
WOW I have never seen a 911 cam break
never... is this one of the west coast cam grinders? |
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| Thorshammer |
Jun 12 2005, 09:49 PM
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#34
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Senior Member Group: Members Posts: 749 Joined: 11-November 03 Member No.: 1,335 |
Tim,
Me neither! I have built many 911 engines and have never seen this. I have seen cam journals scored and worn oddly from incorrect cylinder height of cylinders or cylinders that have not been torqued down properly. But this is not the case with this engine. The cam tower journals look good with no unusual wear. The only thing that points to a problem is this one incomplete radius next to the middle main bearing on the cam. All of the lobes look great, nothing wrong except it broke. I am even using the cam grinders springs, which My machinist really liked and said they were excellent./ Everything was set to the cam grinders spec. And I will say worked pretty good. It could be better. My biggest dillema is this, do I disassemble the motor the rest of the way. Or flush it, run 14 qrts of petroleum oil through it and take my chances. it has an Oberg filter and it does have metalic flakes in the filter but it is not rod bearing material. it is not full but has maybe a 1/4 of a teaspoon of metal in it. I am unsure of the obergs ability to catch particles. I will remove the oil tank and check it tomorrow. That will give me the best indicator. ? What Would you do? Erik Madsen |
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| groot |
Jun 13 2005, 05:38 AM
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#35
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Dis member Group: Members Posts: 896 Joined: 17-December 03 From: Michigan Member No.: 1,444 |
DAMN!! A broken camshaft. I'm sorry about the weekend. I hate the disappointing weekends, but they happen more often than anyone would like.
I'm still planning on BeaveRun, the left side of my engine only lost a few more psi of compression. I think I'll try and wring one last race out of this ol' engine and then refresh the heads. |
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| ChrisFoley |
Jun 13 2005, 06:51 AM
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#36
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I am Tangerine Racing Group: Members Posts: 7,968 Joined: 29-January 03 From: Bolton, CT Member No.: 209 Region Association: None
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What Would Jesus Do? (IMG:http://www.914world.com/bbs2/html/emoticons/laugh.gif) Seriously though, at a minimum it would seem prudent to remove the other camshaft for a close inspection. Did you run a magnet through the filtered particles? |
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| SirAndy |
Jun 13 2005, 09:40 AM
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#37
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Resident German Group: Admin Posts: 41,943 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
sorry to hear about the broken motor and all the other troubles you guys had out there ...
but at least the 914club decals look sharp! (IMG:http://www.914world.com/bbs2/html/emoticons/smilie_pokal.gif) (IMG:http://www.914world.com/bbs2/html/emoticons/smile.gif) Andy |
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| seanery |
Jun 13 2005, 09:56 AM
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#38
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waiting to rebuild whitey! Group: Retired Admin Posts: 15,854 Joined: 7-January 03 From: Indy Member No.: 100 Region Association: None |
damn, erik, sorry to hear this (IMG:http://www.914world.com/bbs2/html/emoticons/sad.gif)
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| Jake Raby |
Jun 13 2005, 10:18 AM
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#39
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Engine Surgeon Group: Members Posts: 9,398 Joined: 31-August 03 From: Lost Member No.: 1,095 Region Association: South East States |
Chris and Erik,
Sorry to hear of the misfortune. I know that Chris is running an engine on it's last bit of life whiole we continue to fight some issues with his MassIVe engine on this end as well as the hooplah that the Nickies cylinders have added to the suspense as for as legality goes. Chris will have his "A" engine back sometime very soon, I am waiting on one component for it that should be done within the week. Erik, Sorry to see the broken parts- It proves that even the -6 engine can and will fail in a Production race venue and that as convventionally believed they are the bullet proof "Failure proof" way to go! I have never broken a Type IV cam, unless you count the ones that were involved with being chopped in two with a connecting rod :-) In racing, ANYTHING within an engine can and will break, and if you don't break it either the engine wasn't modified enough or a pussy was behind the wheel not working it hard enough! I just wasnted to stop by and see how you guys did over the weekend- I'm not back yet and won't be for atleast another 6 weeks as I have to finish Chris' engine and also Tom Burdge's run offs engine before I will even have time to breathe... By that time Len will have Kevins heads finished and it'll be time to assemble the most bad ass 2.0 on planet earth! BTW- Erik, Tear that engine down 100% and ensure all the grit is out of it before you experience failure #2.. I have learned to NEVER take chances on this level! Also, send me the replacement camshafts to have magnafluxed and cryoed- This won't happen again if you do. See Ya'll later! |
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| edgetoo |
Jun 13 2005, 10:57 AM
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#40
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Newbie Group: Members Posts: 25 Joined: 26-October 03 From: Rockland, MA Member No.: 1,279 |
Thanks guy's for the Pix and discriptions and the help in the padock. Thanks to Dan & Tom in providing a rock strainer for the oil coolers and doing all the tweeks to keep it running on a very hot day.
(Note the "altered" door where the pole sitter and later another car collected me.) I must appologize to Chris & Tom for not getting them through cleanly and quickly. They arrived on the scene with about 6 of their friends just as I caught 2 of the tail end cars. It took me about 1/2 a lap to get the car started after the "black flag all". This did provide me with 4 laps of relatively clear track and I got my fast lap on the last lap! (1:09+) is not going to win much. We hope to do a bit more tweeking and be at the Glen. Ed |
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