 Here's goes nothing..., Rick & I have readied our steeds and are on our way! |
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| wbergtho |
 Oct 15 2008, 01:49 PM
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#1
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Senior Member  Group: Members Posts: 1,314 Joined: 28-April 03 From: Roberts, WI Member No.: 623  |
After much fanfare and wrenching, the "Alien" and the "Little Bastard" are en route for a trouble free road trip to Huntsville. After Rick finally got his leaks figured out, he wasted no time breaking a CV (IMG:style_emoticons/default/av-943.gif) (IMG:style_emoticons/default/confused24.gif) But Chappy pitched in with a nice replacement (IMG:style_emoticons/default/aktion035.gif) and Rick's good to go. Of course Rick's new engine has only 15 miles on it and break in oil, we'll take a few exit ramps and such. We just had wonderful authentic Thai food prepared by my wife and we are on our way south! weeeeeeeeee! (IMG:style_emoticons/default/driving.gif) (IMG:style_emoticons/default/driving.gif)
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Replies(1 - 19)
| blitZ |
Oct 15 2008, 01:53 PM
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#2
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Beer please... Group: Members Posts: 2,223 Joined: 31-August 05 From: Lawrenceville, GA Member No.: 4,719 Region Association: South East States |
Keep em between the lines, and we'll see ya there. (IMG:style_emoticons/default/beer3.gif)
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| iamchappy |
Oct 15 2008, 01:54 PM
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#3
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It all happens so fast! Group: Members Posts: 4,893 Joined: 5-November 03 From: minnetonka, mn Member No.: 1,315 Region Association: Upper MidWest  |
Good luck guys.
Lets see the way you drive, i figure it should take you about an hour and a half to get down there. |
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| Brett W |
Oct 15 2008, 02:06 PM
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#4
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Advanced Member Group: Members Posts: 2,856 Joined: 17-September 03 From: huntsville, al Member No.: 1,169 Region Association: None 
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I have parts and fab capabilities if you need. Plus a lift to really make life easy. Call if you need anything in route. two five six 33769one9
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| jim912928 |
Oct 15 2008, 06:53 PM
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#5
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Senior Member Group: Members Posts: 1,485 Joined: 8-January 04 From: Granger, IN Member No.: 1,536 Region Association: Upper MidWest |
dang...I think I can actually hear the rumbling 8's! lol. Good luck with the trip and have yourselves a blast!
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| rick 918-S |
Oct 15 2008, 11:17 PM
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#6
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Hey nice rack! -Celette Group: Members Posts: 20,462 Joined: 30-December 02 From: Now in Superior WI Member No.: 43 Region Association: Northstar Region
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Dang! Bill's wife can really cook. The Tai food was sooo good and sooo hot! I loss my voice from the heat, but I hope she invites us again. (IMG:style_emoticons/default/chowtime.gif)
It's true, I busted a CV with 15 miles on the new engine. There is no parts in my part of the country. I trailered the car about 180 miles to start the day. I went to Chappy's place and he fixed me up with an axle. Then I trailered the Alien to Bill's and we installed the axle and hit the road. The mother ship is in Bill's yard. Due to my break down we got a late start. We are currently in a Super 8 in Elpaso IL. We still have about 9 hours to travel. But so far so good. (IMG:style_emoticons/default/biggrin.gif) Bill's Lil Bastard is fast and well sorted! (IMG:style_emoticons/default/drooley.gif) I have a funny story involving a herd of sheep. But that's for another time. (IMG:style_emoticons/default/av-943.gif) Anyone in Huntsville know the workings of the CIS K-jet? I'm running a little rich and have a high idle. (1100-1200 rpm's) I' thinking Auxilery air valve not fuctioning. |
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| Brett W |
Oct 16 2008, 10:36 AM
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#8
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Advanced Member Group: Members Posts: 2,856 Joined: 17-September 03 From: huntsville, al Member No.: 1,169 Region Association: None
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I think we can get you fixed up.
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| Ferg |
Oct 16 2008, 10:45 AM
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#9
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914 Guru Group: Members Posts: 5,948 Joined: 8-January 03 From: Boulder CO Member No.: 116 Region Association: None
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| wbergtho |
Oct 19 2008, 08:58 PM
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#10
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Senior Member Group: Members Posts: 1,314 Joined: 28-April 03 From: Roberts, WI Member No.: 623 |
I made it home in 13 hours flat! The car didn't skip a beat all the way home. Probably because I was getting my foot into it. It only breaks when I baby it for some weird reason. It took about 20 hrs to get down to AL and I fricken hauled the mail home...holy shit! Had a fun time down there despite the two broken roller rockers I experienced on the way down and on the ramble to the Jack Daniels facility. Unfortunately the Lil Bastard wasn't as well sorted as Rick may have hoped...but it all ended quite well. Everyone thought I was out of commission... on the Jack Daniels run...hell, I would have driven the Little Bastard home on 5 cylinders if I had to.
Special thanks to Brett for the southern hospitality and willingness to help perform a 30 minute operation on my roller rockers. What a great guy! One more thing, as far as putting a Porsche engine back in to "restore reliability" or to make it more "pure"...I have one thing to say about that..."Not gonna do it" (IMG:style_emoticons/default/dry.gif) . I'm just going to figure out why my new heads like to eat rockers...fix it...and forget about it. 530+ HP has spoiled me (IMG:style_emoticons/default/happy11.gif) and I don't have the $ to create a Porsche engine that will do what an LS6 can do. Purists are a different lot. Anyway, it was a very long drive (2000+ miles round trip) (IMG:style_emoticons/default/driving.gif) and I'm not sure I'll do it again. It was fun while it lasted. (IMG:style_emoticons/default/aktion035.gif) Bill Attached image(s) 
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| SGB |
Oct 19 2008, 10:25 PM
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#11
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just visiting Group: Members Posts: 4,086 Joined: 8-March 03 From: Huntsville, AL Member No.: 404 Region Association: South East States |
YAAAY!!!
You guys are a scream. I worried about those rockers, and as I discussed it with Alan McCrispin, our AX specialist, said "Thats spring bind." I said "What?" and he said "in a dual valve spring setup, one spring interferring with the other to prevent valve movement." Could that be the cause? Y'might want to consider it. Alans got major credentials. Welcome home. is it cold tonight? (IMG:style_emoticons/default/beerchug.gif) |
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| wbergtho |
Oct 20 2008, 12:44 AM
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#12
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Senior Member Group: Members Posts: 1,314 Joined: 28-April 03 From: Roberts, WI Member No.: 623 |
Scott,
I personally enjoyed your layed back sense of humor and your involvemnet in the RCR. You were one of the more memorable guys I met and would love to bump into you again in the near future. Great job! I measured the coil bind issue at Brett's shop and it was well within spec. I have another valvetrain issue that has yet to be determined. Once I nail it down, I'll correct it...and forget about it. Bill |
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| Root_Werks |
Oct 20 2008, 10:57 AM
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#13
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Village Idiot Group: Members Posts: 8,321 Joined: 25-May 04 From: About 5NM from Canada Member No.: 2,105 Region Association: Pacific Northwest
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Sweet! Nice to read you guys made it there and back. How did the Alien do? (IMG:style_emoticons/default/driving.gif)
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| wbergtho |
Oct 20 2008, 12:28 PM
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#14
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Senior Member Group: Members Posts: 1,314 Joined: 28-April 03 From: Roberts, WI Member No.: 623 |
Alien likes to drink fuel. Apparently it takes a lot of fuel to run the otherworldly systems on board. As far as reliability, it runs like a Swiss watch! Once Rick gets the fuel injection system leaned out and dialed in...it should get 25 miles to the gallon or more. I talked to Rick this morning and he is on his way home as we speak. He'll back to Area 51 this afternoon.
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| byndbad914 |
Oct 20 2008, 06:49 PM
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#15
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shoehorn and some butter - it fits Group: Members Posts: 1,547 Joined: 23-January 06 From: Broomfield, CO Member No.: 5,463 Region Association: None |
no bent pushrods? If you broke two rockers without bending a pushrod then you probably aren't bottoming anything out... sounds like the rockers may just be under-designed and too weak.
Usually the prods are the weak links in bottoming situations, not rockers. If the rockers are weaker than the pushrod stability, then they could break for any number of reasons, and maybe they are just failing because the yield slightly over and over and work harden the area then fail. Aluminum rockers right? I can't imagine a good steel rocker falling apart... |
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| wbergtho |
Oct 20 2008, 07:47 PM
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#16
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Senior Member Group: Members Posts: 1,314 Joined: 28-April 03 From: Roberts, WI Member No.: 623 |
I have broken a total of 4 rockers in the course of 3000 miles. They have all failed in the same way. Basically, the the pushrods ram themselves up into the cup of the rocker and break the body of the rocker. It could be the result of too much preload on the hydraulic lifters...which in turn could be caused by a number of things: 1) Bad hydraulic lifters 2) pushrod length too long 3) One head decked more than the other (all failures have been on the passenger side head) 5) block decked unevenly 6) Spring pressure not enough and allowing valve float 7) some combination of the above
Any other ideas? I'm planning on taking the heads off and having them thoroughly checked out by Trickflow. If there is a problem, they will find it. Bill |
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| byndbad914 |
Oct 20 2008, 08:04 PM
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#17
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shoehorn and some butter - it fits Group: Members Posts: 1,547 Joined: 23-January 06 From: Broomfield, CO Member No.: 5,463 Region Association: None |
have a pic of a broken rocker?
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| messix |
Oct 20 2008, 08:06 PM
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#18
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AKA "CLUTCH KILLER"! Group: Members Posts: 6,995 Joined: 14-April 05 From: between shit kickers and pinky lifters/ puget sound wa.north of Seattle south of Canada Member No.: 3,931 Region Association: Pacific Northwest |
so the push rod is pushing thru the rocker at the push rod cup 10/4?
so the heads are trick flow and not gm? are the push rods on the other side the same length? who assembled the heads? are the spring seats the same height? stock lifters? sounds like the push rods grew.....????? (IMG:style_emoticons/default/idea.gif) (IMG:style_emoticons/default/blink.gif) |
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| wbergtho |
Oct 20 2008, 08:38 PM
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#19
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Senior Member Group: Members Posts: 1,314 Joined: 28-April 03 From: Roberts, WI Member No.: 623 |
QUOTE so the push rod is pushing thru the rocker at the push rod cup 10/4? so the heads are trick flow and not gm? are the push rods on the other side the same length? who assembled the heads? are the spring seats the same height? stock lifters? sounds like the push rods grew.....????? The pushrods behave normally for up to 500-1000 miles and then suddenly one will decide to jump up and bang into the cup of the rocker and blast it to smithereens The heads are Trickflow and not based on a GM casting. They require the use of aftermarket roller rockers. The first set failed 3 times (Scorpion)...the 2nd set are better (Yella Terra) and have failed once. Pushrods are all hardened Trickflow 5/16 7.7" length that TFS (Trickflow)recommends. Yes they are the same on both sides. TFS assembled the heads and I assume they do pretty accurate machining for a pair of $2400 heads. But I'll have them measured and checked through thoroughly by Total Engine Airflow. Lifters are LS7 hydraulic lifters with about 5000 miles on them. They are currently the best hydraulic lifter for all LS series engines including LS1 thru LS7. I think either the machining is off a bit (perhaps from the previous owner). They are a used set of heads so they did not come directly new from TFS. They had about 5k on them and were advertised as being in perfect shape. Perhaps the previous owner had a problem with them and had unknown decking or machine work done on them or only one of them. The passenger side rockers are the only ones that have been breaking and it seems to me that there is something wrong with that particular head. Maybe it was repaired and decked more than the other one causing more lifter preload. I set up lifter preload on the driver's side head and felt comfortable that both heads are machined exactly the same. I now believe it to be a good idea to have these heads measured and looked at closely by TEA and see what they find. If they find nothing wrong with them, then I have a problem with either pushrod length or hydraulic lifter issues. Thanks for any advice or ideas. Bill |
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| wbergtho |
Oct 20 2008, 09:34 PM
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#20
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Senior Member Group: Members Posts: 1,314 Joined: 28-April 03 From: Roberts, WI Member No.: 623 |
pic of damaged Scorpion rocker
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