Installing timing gears
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Fleet Mechanic
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From: va
Installing timing gears
I have everything off it time to replace the timing chain.
Questions:
It looks like there's only one way to install the gears? The lower one has a key and the upp gear er has a pin that you put the gear on? Is that correct.
The oil pan gasket was torn while removing the water pump. How do i fix this, i think theres something in the gasket kit.
I keep getting antifreeze leaking down the two holes in the block besides of the lower timing gear. I tried to wipe out the fluid but the level stays at the top and keeps leaking. I think the fluid will get on the new gasket.
I can't remove all the gasket, what to do know?
Thanks
Questions:
It looks like there's only one way to install the gears? The lower one has a key and the upp gear er has a pin that you put the gear on? Is that correct.
The oil pan gasket was torn while removing the water pump. How do i fix this, i think theres something in the gasket kit.
I keep getting antifreeze leaking down the two holes in the block besides of the lower timing gear. I tried to wipe out the fluid but the level stays at the top and keeps leaking. I think the fluid will get on the new gasket.
I can't remove all the gasket, what to do know?
Thanks
Lead Driver
Joined: Nov 2002
Posts: 9,556
Likes: 43
From: Concord, NC
Did you set the engine to TDC on the compression stroke of cylinder 1 before you took everything apart? There should be a mark on each of the gears that you will line up - the dot goes to the top side of the crank gear and the bottom of the cam gear when at TDC on the compression stroke of cylinder 1. The gears are keyed to the shafts, but the the alignment could still be incorrect by virtue of the chain being off a tooth or more.
If the oil pan gasket is a one-piece rubber gasket and it is torn, you should get another one-piece gasket and replace the whole thing instead of trying to patch-in the pieces from the timing cover gasket set.
To drain the antifreeze from the block, you need to remove the block drain plugs from the sides of the block. There should be one on each side, but the passenger side might be hidden by the starter.
If the oil pan gasket is a one-piece rubber gasket and it is torn, you should get another one-piece gasket and replace the whole thing instead of trying to patch-in the pieces from the timing cover gasket set.
To drain the antifreeze from the block, you need to remove the block drain plugs from the sides of the block. There should be one on each side, but the passenger side might be hidden by the starter.
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Fleet Mechanic
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From: va
tdc, oil pan gasket
I did not set it to top dead center, the chain seem to be in good shape, but has 120,000 miles on it. I will check it to see if the chain slipped.
I will add a new one peice rubber metal oil pan gasket because mine broke.
thanks
I will add a new one peice rubber metal oil pan gasket because mine broke.
thanks
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Fleet Mechanic
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From: va
I have the chain on know. TDC may be ok?? The top timing gear has an small arrow at the very top, facing up. There are no marks on my the lower timing gear but it has the key facing up of the shaft.
Lead Driver
Joined: Nov 2002
Posts: 9,556
Likes: 43
From: Concord, NC
Try to find the dots on the original gears to see how the new ones should be positioned. If you didn't set it to TDC before removing the old timing set, but you did not rotate the crankshaft at all afterwards, you should be okay putting it back together with the pin and keyway as alignment. I would, though, rotate the engine to TDC cylinder 1 just to double check alignment before getting the cover back in place.
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Fleet Mechanic
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From: va
I agree. I tried to turn the crank counterclockwise but the nut loosen. Can i turn the crank clockwise? When would I know i'am to TDC? The bottom key would be on the top of the crank, but how would i know when the top cam gear is at the right place? I don't see a dot on the orginal ford cam gear.
Right know the bottom key is facing up, 12 ocloak. But the mark on the cam gear (ARROW) is pointing up, at 11 oclock.
Thanks
Right know the bottom key is facing up, 12 ocloak. But the mark on the cam gear (ARROW) is pointing up, at 11 oclock.
Thanks
Lead Driver
Joined: Nov 2002
Posts: 9,556
Likes: 43
From: Concord, NC
The engine turns clockwise when it's running, so yes, you can and should turn the crank clockwise. I would pull the #1 spark plug to find TDC, and once you're close, the mark on the crank gear should be on the top side of the gear. I can't imagine the gears not having any marks on them. That's how the service manuals instruct to align the cam and crank.
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Fleet Mechanic
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From: va
Notes: The truck ran fine except for a bad oil leak from the timing cover. Also the distribitor has not been touched during this repair.
A loose bolt fell into the newly installed timing chain and broke it, the cam is out of time?
I now have both timing dots matching. I checked the rotor and it doesn't point to cyl #1. It points to the middle of the windshield.
Before I removed the old timing chain I turned the crank shaft, so the timing mark was up. I thought it was at TDC. I did noticed later after removing the cam that the dot was at the wrong place it was at very top of the cam gear.
How do I get the rotor to point to cyl # 1? Do I turn the cam 360 deg. clockwise ???
Lead Driver
Joined: Nov 2002
Posts: 9,556
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From: Concord, NC
If nothing has moved since you took the old chain off (I thought you said it broke), just install the new gears with the dot at the top of the cam gear. That should be TDC on the #6 cylinder compression stroke (TDC #1 exhaust stroke), which just means the camshaft is 180° from where it would be if it were at TDC #1 compression stroke. As long as you put it back together like it came apart, everything should be okay.
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Fleet Mechanic
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From: va
Yes the chain broke the chain. The timing marks were only off a hair from each other. So I angined them both. Someone told me to see if the timing is correct you must have the rotor point to cyl. #1. Is that correct.
