| Author |
Message |
    
Ben Sidaway
Visitor
| | Posted on Thursday, March 03, 2005 - 10:26 am: | 
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I�m trying to find exhaust manifold studs for a Palmer M-60 engine. The ones I took out were rusted away at the block end. I have called all sorts of marine and car parts places with no luck. I can have them made but that will be expensive being that they are hardened steel. My other option is just to cut some hardened threaded rod and then cross the thread somehow to make a stop so they don�t go into the block too much. They are 3/8th 16 thread 4.25 inches long with 1/2 inch of thread on the block end and 1 inch of thread on the nut end. Any ideas or advice would be appreciated. |
eddie
Advanced Member
Username: eddie
Post Number: 46
Registered: 04-2003
| | Posted on Thursday, March 03, 2005 - 11:00 am: |
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If you use the theaded rod you could peen the block around the hole with some center punches close to the rod. Dress the high edges of the punch marks with a mill smooth file before reassembling manifold and gasket. |
Ben Sidaway
Visitor
| | Posted on Thursday, March 03, 2005 - 11:28 am: |
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So I would put the rod in the correct amount into the block and then whack the block around the rod with a centre punch so it jams it in there..... Is that what you mean?
If I did this could I get them out then in the future? Could I just thread the rod way into the block until it hits the other side of the water channel? Would this create problems? |
eddie
Advanced Member
Username: eddie
Post Number: 47
Registered: 04-2003
| | Posted on Thursday, March 03, 2005 - 12:05 pm: |
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Jah, that's what I meant. About the future, peening would make it less of a problem than say crossthreading and/or corrosion. I'd cross that bridge when I came to it. About the water channel. It might be a blind hole in which case you could run it in until it bottoms out. |
Ben Sidaway
Visitor
| | Posted on Thursday, March 03, 2005 - 12:16 pm: |
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Yes, with head off I can see the studs coming through the block wall and into the water channel. If I go another inch or so I will hit the wall on the other side of the channel. I'm just afraid that these studs might therefore impede water flow. They would rust pretty quickly of course with the hot seawater. |
eddie
Advanced Member
Username: eddie
Post Number: 48
Registered: 04-2003
| | Posted on Thursday, March 03, 2005 - 02:12 pm: |
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I wouldn't think you should do that anyway because you risk warpping the cylinder. Peen it just enough to hold it from turning until the manifold makes contact, then it has nowhere to go except to tighten everything up |
larry_from_maryland
Senior Member
Username: larry_from_maryland
Post Number: 205
Registered: 07-2003
| | Posted on Thursday, March 03, 2005 - 06:35 pm: |
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They do make a stud with one side oversize so it will hold in a block without turning.I have some that came from the navy base.I don't know where you could buy any.There is allso a stud with one side course and one side fine.You put the course side in untill it tighens on the fine threads. |
richardday
Senior Member
Username: richardday
Post Number: 369
Registered: 11-2003
| | Posted on Thursday, March 03, 2005 - 08:02 pm: |
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Let me see if I have a couple of useable ones. Give me a name and address. |
richardday
Senior Member
Username: richardday
Post Number: 370
Registered: 11-2003
| | Posted on Friday, March 04, 2005 - 11:42 am: |
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Ok I found four good ones with their nuts. Where do I send them. Just pay my postage and they are yours. Don't break into the waterjacket and do use anti sieze on the threads and shaft where it goes through the manifold to protect them from rusting. |
Ben Sidaway
Visitor
| | Posted on Friday, March 04, 2005 - 01:44 pm: |
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Thanks a million. I'll email you directly. |
