Dumbo The Flying Elephant

MR DERBY CITY · 05-16-2019, 08:50 PM

So Larry, will the new car be at BG next weekend ?

Larry Hill · 05-17-2019, 07:19 AM

Not even close. I will be working on it.

Larry Hill · 05-17-2019, 08:01 AM

I did get my Rimac tester to repeat to the .001'' when testing for coil bind. It was an easy fix. Remove POS pinion support and make new brass bearing and install. Modify stop to install 5" dial indicator. Make positive stop for table. Fab table extension for dial indicator. Use 123 blocks to calibrate. Rube Goldberg we be so proud.

In 16 springs the range of coil bind varied.022". That would not be so bad if hardened shims were available in increments of .001". If target is CB is .050" and I can't get closer than .010" I missed it by 20%.

Larry Hill · 05-18-2019, 08:26 AM

Talk about all new never run parts. The installed height difference on all intake valves only varies less than .010" and same for the exhaust valves. To get stuff closer I'm going to try a different set of springs and or make something to get the needed force on the seat.

Larry Hill · 05-18-2019, 05:00 PM

Test fit my T&D rockers today, what a great piece of work by Brad Rounds and crew. I had to do absolutely nothing, which was real nice for a change. I also found out that the rockers can be installed backwards. All this while I listen to Uncle Bob at the D3 race.

Larry Hill · 05-24-2019, 08:49 PM

Looking forward to the shop being closed for three days. I should get a lot done. It was 25 years ago we missed racing on Memorial Day weekend. I was building the truck and that weekend was header weekend at Gary Jennings. Brought the truck over less dog house.

Wiring is slow but it should easy to find and fix if necessary. Installed height, coil bind, seat pressure, open pressure, shims, and spring assignment is coming together. Rocker arms are done.

Today is scribe day. I put the shop notes and information of parts and settings in the ''Dumbo'' book.

Larry Hill · 05-27-2019, 08:08 AM

I don't know why this stuff pops in my head. If the book was titled:

"Reflections Of Dumbo", what would the cover look like?

05-16-2019, 08:50 PM	#1
MR DERBY CITY VIP Member Join Date: Feb 2014 Location: Derby City, USA Posts: 3,635 Likes: 1,083 Liked 7,921 Times in 1,515 Posts	Re: Dumbo The Flying Elephant So Larry, will the new car be at BG next weekend ?

05-17-2019, 07:19 AM	#2
Larry Hill Live Reporter Join Date: Oct 2004 Location: Hickory, Ky Posts: 10,630 Likes: 1,923 Liked 10,683 Times in 2,223 Posts	Re: Dumbo The Flying Elephant Not even close. I will be working on it. __________________ IHM Used Parts https://ihmusedparts.com 888-821-1817

05-17-2019, 08:01 AM	#3
Larry Hill Live Reporter Join Date: Oct 2004 Location: Hickory, Ky Posts: 10,630 Likes: 1,923 Liked 10,683 Times in 2,223 Posts	Re: Dumbo The Flying Elephant I did get my Rimac tester to repeat to the .001'' when testing for coil bind. It was an easy fix. Remove POS pinion support and make new brass bearing and install. Modify stop to install 5" dial indicator. Make positive stop for table. Fab table extension for dial indicator. Use 123 blocks to calibrate. Rube Goldberg we be so proud. In 16 springs the range of coil bind varied.022". That would not be so bad if hardened shims were available in increments of .001". If target is CB is .050" and I can't get closer than .010" I missed it by 20%. __________________ IHM Used Parts https://ihmusedparts.com 888-821-1817 Last edited by Larry Hill; 05-17-2019 at 08:09 AM.

05-18-2019, 08:26 AM	#4
Larry Hill Live Reporter Join Date: Oct 2004 Location: Hickory, Ky Posts: 10,630 Likes: 1,923 Liked 10,683 Times in 2,223 Posts	Re: Dumbo The Flying Elephant Talk about all new never run parts. The installed height difference on all intake valves only varies less than .010" and same for the exhaust valves. To get stuff closer I'm going to try a different set of springs and or make something to get the needed force on the seat. __________________ IHM Used Parts https://ihmusedparts.com 888-821-1817

05-18-2019, 05:00 PM	#5
Larry Hill Live Reporter Join Date: Oct 2004 Location: Hickory, Ky Posts: 10,630 Likes: 1,923 Liked 10,683 Times in 2,223 Posts	Re: Dumbo The Flying Elephant Test fit my T&D rockers today, what a great piece of work by Brad Rounds and crew. I had to do absolutely nothing, which was real nice for a change. I also found out that the rockers can be installed backwards. All this while I listen to Uncle Bob at the D3 race. __________________ IHM Used Parts https://ihmusedparts.com 888-821-1817

05-24-2019, 08:49 PM	#6
Larry Hill Live Reporter Join Date: Oct 2004 Location: Hickory, Ky Posts: 10,630 Likes: 1,923 Liked 10,683 Times in 2,223 Posts	Re: Dumbo The Flying Elephant Looking forward to the shop being closed for three days. I should get a lot done. It was 25 years ago we missed racing on Memorial Day weekend. I was building the truck and that weekend was header weekend at Gary Jennings. Brought the truck over less dog house. Wiring is slow but it should easy to find and fix if necessary. Installed height, coil bind, seat pressure, open pressure, shims, and spring assignment is coming together. Rocker arms are done. Today is scribe day. I put the shop notes and information of parts and settings in the ''Dumbo'' book. __________________ IHM Used Parts https://ihmusedparts.com 888-821-1817 Last edited by Larry Hill; 05-26-2019 at 07:04 AM.

05-27-2019, 08:08 AM	#7
Larry Hill Live Reporter Join Date: Oct 2004 Location: Hickory, Ky Posts: 10,630 Likes: 1,923 Liked 10,683 Times in 2,223 Posts	Re: Dumbo The Flying Elephant I don't know why this stuff pops in my head. If the book was titled: "Reflections Of Dumbo", what would the cover look like? __________________ IHM Used Parts https://ihmusedparts.com 888-821-1817