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#2 and #3 head bolts on the passenger side "wet"?
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sunnuntaikuvaaja View Drop Down
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Points: 9 		Post Options Post Options   Thanks (0) Thanks(0)   Quote sunnuntaikuvaaja Quote  Post ReplyReply Direct Link To This Post Topic: #2 and #3 head bolts on the passenger side "wet"?
    Posted: Jun/30/2010 at 6:47pm
Hi!

I had terrible valve train noise in my 1970 Hornet, tried Wynn's lifter cleaner & thicker oil (the engine is worn), to no avail. Today I removed the valve cover and fired it up - no oil flow!

I pulled the rocker shaft, took it apart to see that it's in bad shape! After sanding the shaft & rocker contact surfaces and oiling everything up I put it back. Much better!!! :)

But.

Still no oil flow in the valve train. Oil pressure is good.

I finally got it:



The previous owner has replaced the #3 passenger side head bolt (from the firewall) with a stud and a nut!!! This will block the oil flow to the valve train as described in http://www.mattsoldcars.com/RestoreAmerican/boltmod.shtml.

Now, what I'd like to do is swap the #2 and #3 head bolts to restore oil flow to the rocker shaft. Do these bolts pass through the block water jacket? Or is is OK for me to just take them off and swap them around? Any other considerations?

Thanks in advance!!! :)
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poormansMACHINE View Drop Down
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Points: 12357 		Post Options Post Options   Thanks (0) Thanks(0)   Quote poormansMACHINE Quote  Post ReplyReply Direct Link To This Post Posted: Jun/30/2010 at 6:52pm
I believe that the only bolt in water is by the water pump.
Also, that's not a stud. It's one of the head bolts from the outside of the cover near the exhaust manifold.
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sunnuntaikuvaaja View Drop Down
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I believe that the only bolt in water is by the water pump.


Thanks!!!

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Also, that's not a stud. It's one of the head bolts from the outside of the cover near the exhaust manifold.


A-ha... Why might someone have put it in here? Will the #2 bolt enable oil flow to the rocker shaft if I do swap them around...?
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tyrodtom View Drop Down
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Points: 2880 		Post Options Post Options   Thanks (0) Thanks(0)   Quote tyrodtom Quote  Post ReplyReply Direct Link To This Post Posted: Jun/30/2010 at 8:37pm
   The left front head bolt goes into the water jacket, it's the stud-looking combination bolt that yours has in the middle, from the factory that bolt is at the left front. From the factory all the other head bolts are the same. The head bolt where the oil supply comes thru at the haed block joint was no different from the other head bolts.  A factory reccommended fix for poor oil supply to the head was narrowing the head bolt at that point, but if the rest of the passage is open, installing another standard head bolt won't cause a problem.
66 American SW, 66 American 2dr, 82 J10, 70 Hornet, Pound, Va.
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billd View Drop Down
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Points: 22795 		Post Options Post Options   Thanks (0) Thanks(0)   Quote billd Quote  Post ReplyReply Direct Link To This Post Posted: Jun/30/2010 at 8:46pm
Have to wonder if it was sludged up, and disturbing things was the final straw......
I've cut a few myself to improve oil flow. That used to be fairly common, especially on cars driven in town when the oil would sludge up in that area.

http://theamcpages.com
http://antique-engines.com
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tyrodtom View Drop Down
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Points: 2880 		Post Options Post Options   Thanks (0) Thanks(0)   Quote tyrodtom Quote  Post ReplyReply Direct Link To This Post Posted: Jun/30/2010 at 10:57pm
   Years ago I took off the rocker shaft and gently blew compressed air down the passage that goes from the 2nd from the rear rocker shaft stand, down into the head, it wasn't totally pluged, just restricted. Then removed the headbolt, clearanced it, and re-installed it. the guy had no more problems.
66 American SW, 66 American 2dr, 82 J10, 70 Hornet, Pound, Va.
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sunnuntaikuvaaja View Drop Down
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Points: 9 		Post Options Post Options   Thanks (0) Thanks(0)   Quote sunnuntaikuvaaja Quote  Post ReplyReply Direct Link To This Post Posted: Jul/04/2010 at 11:57am
Many, many thanks to those who answered me! I got the oil flowing and am now enjoying a lot more healthy sounds from the valve train :)
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