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Old 10-23-2018, 10:39 AM   #61
dmsfrr
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Default Re: 56 T-bird rebuild

Here's a link to a whole bunch of Y-block info you may eventually need...

http://www.ford-y-block.com/technical.htm
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Old 10-23-2018, 10:45 AM   #62
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Quote:
Originally Posted by dmsfrr View Post

Here's a link to a whole bunch of Y-block info you may eventually need...

http://www.ford-y-block.com/technical.htm
Good Source.

Specifically-

Quote:
Timing gear installation. Some people try to align the timing marks on the gears toward each other as is common on newer engines. This is bound to happen more often now as the replacement timing chains no longer have the pins marked for correct alignment with the gears. The marks on the Y-Block timing gears aim toward the oil filter side with 12 pins between them.
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Old 10-26-2018, 07:24 AM   #63
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Default Re: 56 T-bird rebuild

Cleaning up the balancer. There is some pitting but not a noticeable groove where the seal rides. I like how they designed the seal so it cannot be put in from the outside. Have to pull the whole cover off to do that. I installed a new chain and gear set and it was definitely tighter than the old one.
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Old 10-26-2018, 01:41 PM   #64
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Post Re: 56 T-bird rebuild

You might want to lightly sand the snout (fine paper/crocus cloth using brake fluid as a lubricant) until fairly smooth.

When installing the cover, leave loose and install balancer so as to center the snout within the seal. Then position cover to center seal over snout and torque to specs. Use white grease or engine oil to lubricate seal /snout contact surface.

There was a SPECIAL SERVICE TOOL for this years ago ...
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Old 10-28-2018, 11:02 AM   #65
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Default Re: 56 T-bird rebuild

The flatheads just had timing gears so the Y-block cam chain drive set up was kind of a new thing for FoMoCo. At the time, it must have made some sense to the engineers but over time with various new engine designs and new set ups, it no longer stood up to modern design standards. It looks confusing by todays standards but the relatively long distance between gears was the likely reason for the way they decided set it up.
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Old 03-30-2019, 04:57 PM   #66
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Default Re: 56 T-bird rebuild

Been a while since I updated this. Just got the carb rebuilt by Sal. Very nice work. Car will actually idle now. I still need to get the timing right. I noticed water leaking between the carb and the front right corner of the intake manifold. Looks like just condensation as the motor gets hot. Should I be concerned about a vacuum leak there. It's a new base gasket.
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Old 03-30-2019, 06:00 PM   #67
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Default Re: 56 T-bird rebuild

Your car will be very low on power and performance until the distributor is dialed in. With this style distributor, there is no spark advance beyond the base timing without
vacuum to both diaphragms (and good diaphragms).


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Old 03-30-2019, 07:35 PM   #68
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Default Re: 56 T-bird rebuild

So you don't think the water drip is a problem?
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Old 03-30-2019, 08:49 PM   #69
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Default Re: 56 T-bird rebuild

Quote:
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...I noticed water leaking between the carb and the front right corner of the intake manifold....
So you don't think the water drip is a problem?
It depends on where the water leak is coming from. Water may be traveling up one of the intake manifold bolts. ???
Attached Images
File Type: jpg 56 y-block intake, bottom view, water passage c.jpg (69.1 KB, 6 views)
File Type: jpg ECZ-A intake, circle.jpg (81.1 KB, 8 views)

Last edited by dmsfrr; 03-31-2019 at 04:21 PM.
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Old 03-31-2019, 06:39 AM   #70
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Default Re: 56 T-bird rebuild

Not antifreeze. Clearly a drip of condensation from between the carb and the intake. Was worried about a possible vacuum leak there.
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Old 03-31-2019, 10:55 AM   #71
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Default Re: 56 T-bird rebuild


I know there were two style s of valve adjusters but when I opened it up this is what I found. Although it looks like the adjustment screw is missing from the exhaust on #4 it doesn't appear to have any threads inside it. It's also a different size. Also a little disappointed in my local parts stores. The y both sold me the wrong size cover gaskets.
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Old 03-31-2019, 01:01 PM   #72
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Default Re: 56 T-bird rebuild

The adjuster is likely home brewed. The parts store catalogs might both have the same part number flaw. No one experienced in Y-blocks behind the counters now days.
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Old 03-31-2019, 03:03 PM   #73
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Default Re: 56 T-bird rebuild

That adjuster is correct. In '57 they eliminated the one with the lock nut (two piece) and replaced it with one screw using interference threads instead of a lock nut. In '57 they also increased the rocker arm ratio to 1.54:1. Previous to '57 it was 1.44:1 I believe. Maybe 1.41 ? Looks like it's had some parts changed along the line.


Sal

Last edited by scicala; 03-31-2019 at 05:01 PM.
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Old 03-31-2019, 04:14 PM   #74
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Default Re: 56 T-bird rebuild

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Originally Posted by scicala View Post
That adjuster is correct. In '57 they eliminated the one with the lock nut (two piece) and replaced it with one screw using interference threads instead of a lock nut. In '57 they also increase the rocker arm ration to 1.54:1. Previous to '57 it was 1.44:1 I believe. Maybe 1.41 ? Looks like it's had some parts changed along the line.
Sal
Yes, there are two styles of locking screws and three different part numbers for rocker arms.
I suspect the 1.54 rocker arms may(?) have been used only in the 'performance' engines, T-Bird, etc.
They can often be mixed up by someone not watching the numbers.

EAN-6564 rocker is 1954-1955 1.43:1 ratio
5751066 is 1958 - 1964 1.43:1 ratio
1.54:1 HIGH RATIO ROCKERS ARE ECG-6564

(from this link)
http://www.ford-y-block.com/rockerarm.htm


Attached Images
File Type: jpg rocker arm adj bolts.jpg (96.5 KB, 11 views)
File Type: jpg rocker arm number location.jpg (57.3 KB, 8 views)

Last edited by dmsfrr; 03-31-2019 at 10:53 PM.
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Old 03-31-2019, 07:37 PM   #75
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Default Re: 56 T-bird rebuild

The 1.54 rockers were used in all 57 engines, regardless of HP. They had the two kinds of adjusters, the changeover made mid year in 57.
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Old 04-01-2019, 12:57 PM   #76
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Default Re: 56 T-bird rebuild

I wonder if they just replaced the adjuster and not the rocker arm. A person would have to confirm the part numbers unless the thread was different. Sort of a mix & match.
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Old 04-01-2019, 02:00 PM   #77
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Default Re: 56 T-bird rebuild

The numbers are on the side of the rockers. I'll have to check it out. Just got done adjusting them. Waiting on the gaskets. Hopefully they're the right ones this time.
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Old 04-01-2019, 08:25 PM   #78
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Default Re: 56 T-bird rebuild

The rockers had two different suffixes denoting the ones with the nut and the ones with the interference thread -A for lock nut, B for interference.


Additionally, the rockers were slightly different in the adjuster end. The one that used the interference thread was slightly shorter


The actual thread size and count were the same in both rockers. It was the adjuster that had the interference thread. You can use either adjuster in any rocker, but when using an interference adjuster in a lock nut rocker it is close to bottoming out when the factory clearance was set. I ran a interference adjuster in a lock nut rocker it it was very close but it worked.
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Old 04-02-2019, 01:22 PM   #79
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Default Re: 56 T-bird rebuild

I noticed that the one in the photo looks pretty deep in the threaded bore. That's what made me think it was a home brewed repair.
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Old 04-03-2019, 07:39 PM   #80
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Default Re: 56 T-bird rebuild

Got everything adjusted and the valve covers back. Suddenly I have no spark. Got six volts going through the primary coil windings. I haven't checked the secondary winding resistance yet. New coil wire so I think it's good. I hooked a jumper wire from the coil wire to a spare spark plug and grounded the plug and got no spark. What's the best way to test the electronic pick up?
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