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Messages - WConley

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31
FE Technical Forum / Re: Reparing a BBM head
« on: April 01, 2025, 03:48:12 PM »
Bob -  You shouldn't have to weld the head.  That could cause a whole raft of problems, like wrecking the heat-treat in the aluminum, warpage, etc.

They make oversized repair inserts just for this kind of issue.  Anybody with a good mill or heavy drill press, and some setup patience, should be able to fix that head.

https://www.timesert.com/html/bigsert.html

32
FE Technical Forum / Re: Autolite Inline Carbs
« on: March 18, 2025, 09:28:46 AM »
Oh man that is so cool!  What a great story- reuniting with your old carbs thanks to a thread on here.  I've always had a soft spot for those inline Autolites, ever since I saw some at Carl Holbrook's shop back in the day.

33
FE Technical Forum / Re: FLYWHEEL BOLT PATTERN
« on: January 20, 2025, 08:51:47 PM »
There's a reason most everybody does the offset hole.  You want your super expensive engine machining line to handle an external balance version.  Engines tend to grow over time, and external balance is sometimes the only way to economically get that longer stroke.

34
Non-FE Discussion Forum / Re: C-Gs Cobra
« on: December 21, 2024, 01:03:30 AM »
Quote from: Heo on December 19, 2024, 12:51:05 PM

No it is a genuin 289 Ex racing cobra, thats why the wheel flairs and other modifications


That's awesome!  The 289 does sound quite spicy.  When I was a kid we had a neighbor who had a yellow 18 foot 1969 Donzi speed boat.  It was powered by a single Holman-Moody 289 HiPo engine.  Man that thing would rip!  He bent his prop one day and when he called the local marina for a replacement, they looked in the books and found two props that would fit that boat.  One had the bigger pitch for a big block, and the other was the smaller pitch for the small block.  The number on Jack's prop was the big block one!  The guy at the marina couldn't believe that little 289 could swing such a big prop  :o

35
Non-FE Discussion Forum / Re: C-Gs Cobra
« on: December 18, 2024, 08:24:07 PM »
I see one of King Christian von Koenigsegg's creations in the parade as well.  Now THAT is an impressive car. 

Is the Cobra a reproduction?  It looks like it from the wheel flares and other details.

36
Non-FE Discussion Forum / Re: Flying christmastree
« on: December 13, 2024, 09:03:19 AM »
I love it!!  Up until a few years ago Boeing had a service facility for B-1 bombers close to my house.  My neighbor worked for Boeing and would let me know when one was going to take off.

The sound was unbelievable because they would take off on full afterburner.  If it was evening you were treated to the four columns of blue flame with shock diamonds inside.  That's freedom!!

37
Non-FE Discussion Forum / Re: 2007 4.6 2V stock head ?s
« on: November 30, 2024, 08:52:32 PM »
Thermal expansion is the likely explanation.  You probably made your measurements cold.

Years ago I had a 4.0L Cologne V6 in a Ranger that sank all of the exhaust valve seats over 0.200".  That used up all the travel on the lifters.  Being iron heads, the valves weren't hanging open that far when I replaced them.  Pretty impressive to see them sunken that low though!  Turns out the seats were never properly hardened at the factory.

38
Non-FE Discussion Forum / Re: 2007 4.6 2V stock head ?s
« on: November 30, 2024, 04:28:39 PM »
Those early 4.6 2V's had some valve seat wear issues.  You've probably sunken the valve into the seat enough to use up all of the hydraulic adjuster travel.  Your fix should work for awhile, but the valve will continue to sink.  There are probably some others awaiting the same fate on your engine.

Where did you take the material off the hydraulic lash adjuster?  Hopefully it was off the bottom.  Also, that oil hole on the finger follower is important.  It allows bleed oil from the hydraulic lash adjuster to flow out and splash lubricate the roller and cam lobe.

39
Non-FE Discussion Forum / Re: Happy Thanksgiving.
« on: November 28, 2024, 11:42:23 AM »
Happy Thanksgiving to a great bunch of folks!  I wish you all a proper CJ-seasoned turkey this year :-)


40
Non-FE Discussion Forum / Re: Tom Posthuma - Farewell to a great FE guy
« on: November 04, 2024, 03:37:40 PM »
While I never met Tom in person, I enjoyed reading his posts.  He was a very knowledgeable and passionate FE guy.  You will be missed Tom!

41
FE Technical Forum / Re: Effect of tight lashing and / or hydraulic lifters on a solid roller camshaft.
« on: October 22, 2024, 06:57:55 PM »
Ross - I should have put some more context into my comment.  Playing with lash can get you some nice (subtle) benefits, but as you said, you must know what you are doing and where you are with your combo!  Most of us with our street engines don't need that level of precision.  When you see a typical solid valvetrain actually running, the dynamic lash ends up pretty far away from what you measured statically.  It takes experience to understand what will work, and how far you can go.  Most of us don't have that...

In the OP's case, there is stuff an order of magnitude more important going on.  I'd say the jeweler's screwdriver can come out when you're done with the big tools.

42
FE Technical Forum / Re: Effect of tight lashing and / or hydraulic lifters on a solid roller camshaft.
« on: October 22, 2024, 02:31:47 PM »
Joe has an excellent point.  IMHO, unless you're running a Pro Stock engine, lash should not be used as a tuning tool.  There are a lot of hidden effects from going outside the specified range.  Aside from heat rejection to the seat, you get into pretty crazy dynamics.  I'm with the guys who are advising attention to the real issue with the parts combination.

43
FE Technical Forum / Re: Lifter bore hone
« on: October 21, 2024, 11:06:58 AM »
Great to hear Ben!   Looking forward to more updates on your build.  8)

- Bill

44
FE Technical Forum / Re: Lifter bore hone
« on: October 13, 2024, 02:35:35 PM »
That's such a small raised edge, that I would probably use a Dremel with a small carbide burr (ball) to gently hit it.  A stone cutter would work, but leave a lot of gritty dust everywhere.  I'd go for the carbide. 

With my old eyes, I'd have a jeweler's magnifier on.  You need to have a steady surface to rest your tool hand on as well.  Would be a pretty quick job.

45
Non-FE Discussion Forum / Re: Northern lights
« on: October 05, 2024, 05:28:06 PM »
Super cool Heo!  That is really beautiful  ;D

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