Installing timing gears

[mastercamper]

On my 03 I broke the new top timing gear and I’m going to install another. What’s the best way to do it since I lost the timing marks when the gear broke?
I know the gear only goes on one way and does #1 need to be TDC?

 

[special ed]

Point the 2 dots together. I would remove the rockers and pull the plugs to rotate the crank if you need to so you dont hit a valve. Inspect the replacement cam gear for cracks before you put it on. Before you put the chain on, install the gears in place and rotate the dots to point at each other, remove the cam gear and place chain on it and fit it in place. double check the marks are still directly in line and tighten the cam bolt.

 

[mastercamper]

Point the 2 dots together. I would remove the rockers and pull the plugs to rotate the crank if you need to so you dont hit a valve. Inspect the replacement cam gear for cracks before you put it on. Before you put the chain on, install the gears in place and rotate the dots to point at each other, remove the cam gear and place chain on it and fit it in place. double check the marks are still directly in line and tighten the cam bolt.

I don’t have the dots the other broke so I need to find it with out them. It’s a story in another post

 

[LRDONE]

I have my old camshaft at home on the bench, I'll look tonight. Maybe we could compare where the woodruff key is in relation to cylinder number 1 intake cam lobe? Making sure your crankshaft is at TDC number 1. This might get you in the ball park.

 

[mastercamper]

I have my old camshaft at home on the bench, I'll look tonight. Maybe we could compare where the woodruff key is in relation to cylinder number 1 intake cam lobe? Making sure your crankshaft is at TDC number 1. This might get you in the ball park.

That’s the direction I need to go. As shouldn’t be any different than a new motor build I’d think but that’s why I’m asking.

 

[LRDONE]

That’s the direction I need to go. As shouldn’t be any different than a new motor build I’d think but that’s why I’m asking.

You just want to be cautious of valve contact. Once you're close, if there's a spec out there on when the intake valve opens, with the piston at tdc, you could put a dial indicator on the rocker arm and spin the cam until you hit your spec and put the chain on where that spec is closest.

 

[mastercamper]

I’ve got a friend that’s a mechanic coming over to help get it squared away.

 

[special ed]

There is a dot on the new cam gear and a dot on the crank gear. They point at each other.

 

[mastercamper]

There is a dot on the new cam gear and a dot on the crank gear. They point at each other.

I’ve glued/ taped the o gear back together so I can get the cam in the right position.

 

[mastercamper]

Got it set

 

[kris812]

NOW Mark or PIN them somewhere (factory spots) so that NEXT time will be easier!