The Jalopy Journal
Discussion in 'The Hokey Ass Message Board' started by racer-x, Sep 19, 2015.
Good call, for what you have invested, why chance it.
I can’t wait to see what this thing runs with the big tune up in it! Hats off to you Brian for sticking with it, impressive as always.
Sent from my iPhone using H.A.M.B.
In the last photo it shows some additional damage not directly connected to the water port. Was this still a result of the water port leak?
Yes. When the gasket let loose it exposed a large area. Almost at Roger's shop it will be like new soon.
The head is easily fixed. The o ring wire is removed first. The low spots welded. The head is decked a few thousandths. Last new receiver grooves cut.
A lot of times there are still witness marks after a repair, even with the best TIG weld.
Do you "pick up" the groove with the original size cutter or bump it up in diameter?
Hope it all works out Brian, so that you can make it to the Fall Out event a little later. If you have time, come back and let us know how the repairs go.
Was a real honor to meet you at Atlanta, and I will be following your exploits from here on out. You and Jim Forbes are true hard core hot rodders and deserve the highest accolades from us all.
Any one that regularly follows this thread knows I don't waste time fixing problems. I was up early to make the five hr drive to cedar falls Iowa. It was determined the best way to fix it would be to weld the low spots. One of the crew members from the orange crate dragster has a shop in cedar Rapids. Scott is a incredible welder and was willing to stop his work to do his thing. It only took about 15 minutes. While it cooled we caught up on our lives.
Up next was the resurfacing. It took .005 to clean it up.
Then it went in the mill to cut the receiver grooves. This critical step is very delicate. The tool has to be perfectly centered. If it isn't the groove will be too big and the wire will fall out.
New wire is gently tapped in. This is another delicate process.
A light touch with a tootsie roll on the combustion chamber edge and its done.
Work like this goes on regularly for a team running a fuel car. In fact this repair was very easy. It's a different story when the ends of valve are sticking out of the combustion chamber like frisbees or torched chambers or piston to head damage.
While this job was straight forward it was too much to do on drag week. There just wasn't enough time.
View attachment 4033102
View attachment 4033103
View attachment 4033104
View attachment 4033105
Wow, quite a few spots got some weld fill. Nice work following closely. Love the car & your story
That cooling system sealer is good stuff. Got a lot of it on my windshield, had to scrape it off with a razor blade.
Sent from my Trimline
Machinists are amazing in their craft as well. The Rockets wounds have been mended...
I guess in my naivety I thought you were going to run without surface repair...that is obviously not what was part of the plan. That is comforting.
Will this allow coolant filled racing or will removal of it prior to race be now standard procedure?
Neat, and look at the guys fingers, he's done this before!
Hope to see you running again soon
The block and heads will be o-ringed around the water jackets. That's the only safe way to run water in a nitro application. We will cut the threads for the second spark plug at that time. Drag week 2019 started today for me.
The groove stayed as is. It accepts a .041 wire. After the groove is cut a small ball peen hammer is used on the edge in a light gentle tapping motion. This rolls the edge to trap the wire. Before the wire goes in a sanding block is used to remove any sharp edges. It's the little things and extra effort learned from expeeience that makes this repair a success.
I had .043 gaskets in it all year. We thought to gain a touch more compression we would try the .032s I had. After a close exam of the blown gasket it's possible it was not strong enough. It will go back together with the .043 set. Nitro engines are a different kind of animal.
Part of what you are seeing on his hands are skin grafts. Roger was horribly burned in a industrial accident some years ago. It took over 200 procedures to put him back together. I work in the medical field and can't believe he survived based on the severity of his injuries. You won't find a tougher more humble guy anywhere he is a true fighter.
Jim your lucky. I get to scrape white dots off the entire car. That includes the bottom side. Sorry for the spray.
@racer-x you have many talented friends in the field your involved in...is that The Tudor Sedan Orange Crate...Racer/Showcar/Model Kit your friend Roger works on?
I look forward to up and coming good times for you at the track again soon.
As an old machinist myself, I spotted a couple of things other than his fingers that indicate your friend Scott has been at his trade a long time, and is accustomed to moving a lot of metal. Having a shovel propped up against the mill shows he deals with a lot of shavings, LOL.
Glad it's fixed for now Brian, and that you have plans for this winter to make it even better.
The season is not over yet. We will get a few more cracks at the 7 sec barrier.
Scott is doing the welding, Roger is doing the machine work and clean up. The Orange Crate is a nostalgia top fuel dragster. Scott was on the crew and Roger was the driver. Roger now drives the Nitro Madness fuel altered.
I guess .005 off 1 head doesn't affect things much? How much before it messes with intake manifold, compression and such?
Sent from my SM-G900V using The H.A.M.B. mobile app
I see 6.90s in your future.
Sent from my iPhone using The H.A.M.B. mobile app
The intake is o- ringed so there is a little room. If it was .010 off the deck I would put a .050 head gasket on that side compared to a .040 gasket. That's a normal nitro thing. It's done all the time.
35 cab that's the cars. I spent a lot of time on Dale's dragster with those guys. Roger has been doing great in the fuel altered the last few years. I still run into kurt; forrest and brew. Forrest recently purchased a dragster roger drove for a race in Kentucky. The car is at Roger's shop right now. It's been completely gone though. Listen closely Sunday you might hear it fire up. Cedar falls to cedar Rapids on 99 percent you just might.
And the 360 degree rotating work bench/barstool. Just like mine. Tech tip: put a kitchen trash bag over the seat for a clean surface.
I see that if you machined .010 off the head you would put a thicker head gasket in it, but at .005 you wont. I was just reading in Nitro Madness that .005 can change the compression ratio, and that it will be harder to tune, and higher compression. How much of a change in compression do you think you will have? What is your ratio in this motor?
I'm only running 6.5 compression. The .005 off the deck is so small it won't be noticed. Im not running 99 percent with 50 pounds of boost and 50 degrees of timing.
In situations were engines are on the very edge in their tune up as in a pro team that has to win the next round I could see it. They are on the edge of burning pistons on every pass already.
Brian.... we met a few times but you probably don't remember me. I am the tall guy that is Matt Sullivan friend and I usually ride with him in his 32 to the car shows. I also help out at all of the John Wells ran car shows and I am the guy that squeezed your coupe (back when it was orange) into a building at Iron Invasion when it started to rain.
I remember. I might go to the iron invasion this fall. Hope to see you and Matt there.
did you see this article? I might have missed if someone posted the link already, I've been, you know, busy.
That's cool thanks.
The car is all back together ready to race. It's been a long 10 days.
That's a cool article, congrats!
Sent from my SM-G920V using The H.A.M.B. mobile app
Separate names with a comma.