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Exhaust manifold heat spring
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Quite a regular
 
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Anyone know where I can find a replacement spring for the exhaust manifold heat flap? The OEM spring was rusted and broke. I’m sure there are equivalent replacements out there but I thought I would ask here before I start mixing and matching.
Posted on: 2022/11/27 12:03
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Catch me on Instagram @rockabillydad or @pastironworks
1951 Packard 300 |
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Re: Head nut/stud torque?
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Quite a regular
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Alright, just to follow up on this, I just did a couple of heat cycles and retorqued each time. 4 times in total. Problem solved. With those new lifter installed it is whisper quiet under the hood and makes the magnaflow exhaust system I welded together sound even better.
I can’t thank everyone on this forum enough for their help and advice.
Posted on: 2022/11/26 8:11
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Catch me on Instagram @rockabillydad or @pastironworks
1951 Packard 300 |
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Head nut/stud torque?
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Quite a regular
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I finally got everything back together today and went to start the car but coolant is passing by the head gasket out the sides of the block/head. I torqued them to 62 foot pounds in the pattern laid out in the service manual. This is a brand new copper head gasket. Frustrated a bit.
Posted on: 2022/11/25 14:50
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Catch me on Instagram @rockabillydad or @pastironworks
1951 Packard 300 |
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Re: Pulling the valves
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Quite a regular
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I ended up welding a washer around the top and was able to hammer it up and out. My god that was a pain.
Posted on: 2022/11/24 9:27
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Catch me on Instagram @rockabillydad or @pastironworks
1951 Packard 300 |
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Re: Pulling the valves
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Quite a regular
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Well I was able to get one of the stuck lifters out without much of a fight. It froze with about 1/4” exposed and I was able to get it out with some vice grips and some light hammer taps.
The second one is determined to stay in the motor. There’s maybe a 1/16” exposed and I’ve been messing with it for a couple hours now. Any thoughts? 
Posted on: 2022/11/23 17:45
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Catch me on Instagram @rockabillydad or @pastironworks
1951 Packard 300 |
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Re: Pulling the valves
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Quite a regular
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Quote:
Hahaha! Here is a man I can relate to. It would make sense since the tapping noise was coming from the front and middle of the engine when I did my long screwdriver stethoscope trick. Each of those locations have a frozen lifter cylinder inside of the tappet. I'll be sure to give that a try. I was going to get a little beat of heat into the tappet as well to see if it helps loosen it up.
Posted on: 2022/11/21 11:15
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Catch me on Instagram @rockabillydad or @pastironworks
1951 Packard 300 |
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Re: Pulling the valves
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Quite a regular
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Quote:
I can just rotate the engine at this point by hand with a 1" socket on the crankshaft since there is no compression.
Posted on: 2022/11/21 11:14
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Catch me on Instagram @rockabillydad or @pastironworks
1951 Packard 300 |
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Re: Pulling the valves
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Quite a regular
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So two of the lifter cylinders do not want to come out of the tappets. Any ideas of doing this without tearing up the tappets?
Posted on: 2022/11/21 7:38
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Catch me on Instagram @rockabillydad or @pastironworks
1951 Packard 300 |
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Re: 1951 300 ticking noise
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Quite a regular
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Quote:
Yeah, that was actually the first thing I thought of, so I went through it to rule that out. Also, this was decidedly more of a metal ticking/contact noise.
Posted on: 2022/11/21 6:34
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Catch me on Instagram @rockabillydad or @pastironworks
1951 Packard 300 |
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Re: Pulling the valves
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Quite a regular
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A handful of the valves are in pretty rough shape. Would the recommendation be to replace them, weld/grind the existing ones or just reinstall them, lap them and hope for the best?
 
Posted on: 2022/11/20 13:10
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Catch me on Instagram @rockabillydad or @pastironworks
1951 Packard 300 |
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