460 score
Thread Starter
|
Grumpy goat
Joined: May 2017
Posts: 3,059
Likes: 597
Red, I had one of those when I was a kid. Except mine was a SBC. That one appears to be a Mopar small block.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 6 Best Deals Available on New Fords & Lincolns Right Now
Brett Foote
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level
Verdad Gallardo
Top 10 Fords at 2026 Carlisle Ford Nationals
Joe Kucinski
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Lead Driver
Joined: Mar 2004
Posts: 8,924
Likes: 153
Oh definitely. I'm calling Lunati tomorrow, and I have a couple of direct email addresses to folks at Lunati to send that photo to.
Good news is, I put the camshaft in the lathe with a dial indicator on it. The camshaft is good and straight. I compared it to the other Lunati camshaft I have, and to the factory camshaft that came out of the engine. Dang, you should see the factory camshaft! I have no idea how that damn thing was actually functioning. The 60 degree center drilling on the tail end is way off center.
Bad news is, the new camshaft fits a little tight in the bearings. I probably should have had the cam tunnel line bored. Lesson learned. After comparing measurements between the three camshafts, the bearing journals on the one I'm gonna use are a smidge larger. I've got a few options: Take the block back to the machine shop and get the tunnel line honed and new bearings installed. Send the camshaft back for some grinding. Or put the camshaft in the lathe and polish the journals. I'm gonna polish the journals. I might ruin a camshaft, but I'm gonna learn a few things regardless.
Good news is, I put the camshaft in the lathe with a dial indicator on it. The camshaft is good and straight. I compared it to the other Lunati camshaft I have, and to the factory camshaft that came out of the engine. Dang, you should see the factory camshaft! I have no idea how that damn thing was actually functioning. The 60 degree center drilling on the tail end is way off center.
Bad news is, the new camshaft fits a little tight in the bearings. I probably should have had the cam tunnel line bored. Lesson learned. After comparing measurements between the three camshafts, the bearing journals on the one I'm gonna use are a smidge larger. I've got a few options: Take the block back to the machine shop and get the tunnel line honed and new bearings installed. Send the camshaft back for some grinding. Or put the camshaft in the lathe and polish the journals. I'm gonna polish the journals. I might ruin a camshaft, but I'm gonna learn a few things regardless.
Thread Starter
|
Grumpy goat
Joined: May 2017
Posts: 3,059
Likes: 597
That's pretty much what we did. We'll see if it was the right thing to do, after the oil warms up on the test stand.
Edit: I put the camshaft in the lathe, between dead & live centers. Used a dial indicator on every journal. I don't see how setting the camshaft on V-blocks could be more precise.
Edit: I put the camshaft in the lathe, between dead & live centers. Used a dial indicator on every journal. I don't see how setting the camshaft on V-blocks could be more precise.
Lead Driver
Joined: Mar 2004
Posts: 8,924
Likes: 153
That's pretty much what we did. We'll see if it was the right thing to do, after the oil warms up on the test stand.
Edit: I put the camshaft in the lathe, between dead & live centers. Used a dial indicator on every journal. I don't see how setting the camshaft on V-blocks could be more precise.
Edit: I put the camshaft in the lathe, between dead & live centers. Used a dial indicator on every journal. I don't see how setting the camshaft on V-blocks could be more precise.
Thread Starter
|
Grumpy goat
Joined: May 2017
Posts: 3,059
Likes: 597
Your isolating half of the cam, it's going to show you exactly how true each end is. Putting it in a lathe is not doing that, it's just giving an overall reading. More often than not when there is trouble getting a cam in it's because of that so if there is excessive bearing scraping to do I would go back and check it.
Lead Driver
Joined: Mar 2004
Posts: 8,924
Likes: 153
I'm not following you. Tell me where I could be wrong here. Understand, I've been machining since I was 13. As you know, the camshaft is 60 degree center drilled on both ends, and this is how it's indexed during grinding / profiling. I put the camshaft in the lathe, between two 60 degree centers. Mind you, my lathe's alignment is checked often, because I cut rifle barrel chambers on it. Ok, between centers, I used a .0005" (half thou) dial indicator, mounted on the carriage. I put the dial indicator on the number 1 journal, and zero'd the dial indicator. Then I spun the camshaft by hand while watching the dial indicator. It never showed any movement. Then I moved the carriage, so that the dial indicator was on the number 5 journal, and repeated the process. The dial indicator showed zero and didn't move as I rotated the camshaft. There was no runout between number's 1 & 5 journals. Then I moved the carriage to the remaining three journals, and repeated. There was almost no runout. Then I repeated the entire process, and came up with the same results. Then I spun the camshaft at 700 rpm. The lathe didn't vibrate. So if there is no runout between the journals, and the journals are all straight and in line with each other, where is the camshaft out of spec?