Random Pics
- Thread starter Jack Meoff
- Start date
AMC Diplomat
Well-Known Member
Grindage, Buuuuddy.
This will go on the make a shut of valve for the oil and gas industry that relies on a metal to metal seal.
It will run lights out within 0.0001” effortlessly.
In the programming, I’m removing 0.001” of material, there’s 0.0008” remaining to grind off, removing 0.0001” each pass for a total of 10 passes.
My step feed value is set to 1 for 0.0001” to allow me to initially touch off the Mag-Chuck so I don’t crash the grinding wheel into the surface in the process.
Terry feed and spark out run extra grinding passes across the table during and after the grinding process without down feeding into material, this allows for as level a surface as possible.
The last picture demonstrates defects in the grind causing “commas and ray lines” on the surface. You don’t want to see those. They can occur from things like excessive grinding pressure, irregularities/debris on the grinding wheel surface, and worn spindle bearings. In this case the cause was the balance being just a hair off on the grinding wheel from factory. A quick rebalance and it’s good as gold.
It’s so easy, even I can do it.
This will go on the make a shut of valve for the oil and gas industry that relies on a metal to metal seal.
It will run lights out within 0.0001” effortlessly.
In the programming, I’m removing 0.001” of material, there’s 0.0008” remaining to grind off, removing 0.0001” each pass for a total of 10 passes.
My step feed value is set to 1 for 0.0001” to allow me to initially touch off the Mag-Chuck so I don’t crash the grinding wheel into the surface in the process.
Terry feed and spark out run extra grinding passes across the table during and after the grinding process without down feeding into material, this allows for as level a surface as possible.
The last picture demonstrates defects in the grind causing “commas and ray lines” on the surface. You don’t want to see those. They can occur from things like excessive grinding pressure, irregularities/debris on the grinding wheel surface, and worn spindle bearings. In this case the cause was the balance being just a hair off on the grinding wheel from factory. A quick rebalance and it’s good as gold.
It’s so easy, even I can do it.
AMC Diplomat
Well-Known Member
Those Miradas are more race car than this thing:
I'd rather have the race car Mirada than the expensive challenger pretending to be a race car
Keeping on the topic of J bodies, also found a couple more suspension pictures of Buddy Arrington's Imperial. The torsion bar setup running along the sides of the car like a 60's/70's Mopar is interesting considering the street cars had transverse torsion bars. Makes me wonder if this was originally a Petty car from the 70's with the suspension unchanged.
SonOfaTomP
Well-Known Member
reminds me of this thing. i think i heard it ran once at the Milwaukee Mile in 1987 but i could be wrong. something to do with regulations allowing a Hemi. i think it was in ARCA. i believe the second pic is it after being turned into a Mirada.
That Diplomat ran at Milwaukee in 1984 in the NASCAR Busch Series, driven by Charlie Luck. The second picture of the Mirada is Gary Bettenhausen driving that same car at Atlanta in the ARCA Series in 1985. Gary raced it on the dirt at Springfield and DuQuoin prior to that race. The ARCA Atlanta broadcast talked about Gary and the car, noting that it started life as a Bobby Isaac K&K Charger built by Harry Hyde in 1972. Unfortunately the race broadcast has been taken down from YouTube.
In my collection of NASCAR rule books, they do list the Chrysler LeBaron and Dodge Diplomat as approved Grand National models up to the 1981 season, but starting in 1982, they were dropped (coupe production of the LeBaron/Diplomat ceased after '81). As for the Hemi, ARCA may have allowed it, but not NASCAR - they permitted the 318, 340, and 360 small blocks, the 360 having the designation of the 1974 model (asterisk denoting that the engine size must be reduced to a max of 358 CI). The engine eligibility remained the same up to the end of 1985.
Back in May last year, I saw the car as it exists now, a red #9 Mirada. Only Mirada stock car I've seen with fender vents. Next time I see it I'll have to check under it to see what kind of suspension it has.
In my collection of NASCAR rule books, they do list the Chrysler LeBaron and Dodge Diplomat as approved Grand National models up to the 1981 season, but starting in 1982, they were dropped (coupe production of the LeBaron/Diplomat ceased after '81). As for the Hemi, ARCA may have allowed it, but not NASCAR - they permitted the 318, 340, and 360 small blocks, the 360 having the designation of the 1974 model (asterisk denoting that the engine size must be reduced to a max of 358 CI). The engine eligibility remained the same up to the end of 1985.
Back in May last year, I saw the car as it exists now, a red #9 Mirada. Only Mirada stock car I've seen with fender vents. Next time I see it I'll have to check under it to see what kind of suspension it has.
AMC Diplomat
Well-Known Member
