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01-23-2018, 11:44 AM | #1 |
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56' 312 Oiler Tube Alignment in Shaft
Received in some parts in to start work back up on my 56' 312 Country Sedan wagon. Ordered two new rocker shaft oiler tubes to replace the passenger side that was missing and the drivers side that was bent over.
What I found interesting is the tube I did have on drivers side looked nothing like what I ordered. I removed the original tube and and tried to place new tube into the top of the rocker and it would not press in and was obviously hung up on something down the hole. Took a few pictures to show and it appears the shaft has turned or not installed correctly sometime in the past and not allowing the tube to press in all the way down to the flange, thus the hybrid tube I had on there? My question: Could I simply loosen the rocker shaft clamps and re-align shaft so that the tube fits and re-torque down? Contemplating removing the rocker assembly and at least clean it up as I not ready for a complete overhaul. Suggestions welcomed. |
01-23-2018, 03:46 PM | #2 |
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Re: 56' 312 Oiler Tube Alignment in Shaft
Yes you could. If you remove the assembly, make sure the oil feed hole from the head is feeding to the shaft through the shaft support. Check that the rocker arm oil holes in the shaft are clean . Wish I'd known you needed those spill tubes. I would've given you all you need. Don't use them on a rebuild. Prefer pressurized rocker assemblies.
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01-23-2018, 03:56 PM | #3 | |
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Re: 56' 312 Oiler Tube Alignment in Shaft
Quote:
Thank you for the advise. |
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01-23-2018, 04:15 PM | #4 | |
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Re: 56' 312 Oiler Tube Alignment in Shaft
Quote:
. Last edited by dmsfrr; 01-23-2018 at 04:23 PM. |
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01-23-2018, 04:20 PM | #5 |
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Re: 56' 312 Oiler Tube Alignment in Shaft
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01-23-2018, 08:20 PM | #6 |
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Re: 56' 312 Oiler Tube Alignment in Shaft
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01-23-2018, 08:54 PM | #7 | |
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Re: 56' 312 Oiler Tube Alignment in Shaft
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01-24-2018, 08:31 AM | #8 | |
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Re: 56' 312 Oiler Tube Alignment in Shaft
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01-24-2018, 05:35 PM | #9 |
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Re: 56' 312 Oiler Tube Alignment in Shaft
My method oils what needs to be oiled, but takes longer than simply pinching the tube. I remove the tubes, and cut off the end with a tube cutter to get a square end. I cut them as close as possible to the end. Then I debur the inside of the tube, and the ID is the correct size to tap for 10-24. I tap them about 5/8 inch, then debur the end again. I take a 10-24 x 1/2 Philips head screw and clamp it gently in the drill press vice, then drill a hole all the way through the screw. The Philips head will center the bit for you. I used anywhere from a 1/16 to a 1/8 bit. The causes pressure to all the rockers, and puts oil where it needs to be for the timing chain and the dizzy gears. I have pictures of the rocker shafts after many thousands of miles, they look as new.
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01-25-2018, 08:13 AM | #10 |
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Re: 56' 312 Oiler Tube Alignment in Shaft
Great solution! Pictures please.
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01-25-2018, 06:51 PM | #11 |
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Re: 56' 312 Oiler Tube Alignment in Shaft
The spillover oil from lubricating the rocker arms is plenty to lube both the dist gear and timing chain. Tim McMaster shows this in a video he has of a running engine with pressurized rockers. More than enough oil flowing along the cylinder head to lube everything.
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01-25-2018, 07:37 PM | #12 |
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Re: 56' 312 Oiler Tube Alignment in Shaft
You can still find rocker assemblies for not too much money or build up your own, the problem was poor oiling, and poor oils. Heavy galling on the lower side of the rocker shafts and rocker arms is pretty much guaranteed.
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01-26-2018, 10:06 AM | #13 |
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Re: 56' 312 Oiler Tube Alignment in Shaft
Poor oiling, poor oil, agreed. The issue of pressurized , semi pressurized or original spillover has been beaten to death many times. Modified shafts with slotted lower oil holes for rocker lube and a fully pressurized rocker shaft assembly, along with numerous lube system modifications to both block and heads, are my recipe for a happy Y Block. JMHO
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01-27-2018, 04:38 PM | #14 |
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Re: 56' 312 Oiler Tube Alignment in Shaft
Disassembled a set of rockers today and did see galling on lower side of rocker shaft. What did puzzle me was the added numbers that are stamped on rockers aside from the part# 5751066. Was seeing that every rocker had a 2 to 3 digit number stamped on adjuster flange. Does it mean something?
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01-27-2018, 06:18 PM | #15 | |
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Re: 56' 312 Oiler Tube Alignment in Shaft
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01-27-2018, 10:55 PM | #16 |
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Re: 56' 312 Oiler Tube Alignment in Shaft
ECG's are 1.54. I once worked on a '57 TBird 312 with a 1.43 shaft on the left and a 1.54 shaft on the right.
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01-27-2018, 11:09 PM | #17 |
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Re: 56' 312 Oiler Tube Alignment in Shaft
Safe to say any rocker with ECG 6564 no matter what year Ford it came out of I can use? I ask because I'm looking and found several assemblies that the sellers would say came out a 60' Truck or 272-292. I have a 312.
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01-27-2018, 11:43 PM | #18 | |
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Re: 56' 312 Oiler Tube Alignment in Shaft
Quote:
I'd also expect to find them in the 4bbl '56/'57 Mercury 312's. '56 & earlier rocker arms had a lock nut on the slotted adjusting screw, '57 & later are self locking. IF rocker arms are original to an engine '58 or newer they should be 1.43's. But given the number of years since new you can't be sure of what someone may have put in. Mis-matched sets are quite common and can turn up in almost any y-block engine. What matters is their condition and the casting number on each rocker arm. http://ford-y-block.com/rockerarm.htm . Last edited by dmsfrr; 01-28-2018 at 02:18 PM. Reason: OCD and can't help retyping/correcting my replies |
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01-27-2018, 11:50 PM | #19 | |
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Re: 56' 312 Oiler Tube Alignment in Shaft
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01-28-2018, 01:56 PM | #20 | |
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Re: 56' 312 Oiler Tube Alignment in Shaft
Quote:
In my own 'digging deeper' example I went back 10 yrs and 2 owners for information that the car was claimed to have it's original '55 292. But it doesn't matter what the seller says... The engine was really a '54 Merc 256 with a few shiny Thunderbird parts on it. |
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