cam seal replacement tips?

[blmlozz]

car has 103k on it and i'm going to replace all the camshaft seals while i have the car apart doing tb and stuff, since this involves removing the sproket, besides making timing marks, anyone have any other suggestions to prevent the cam from moving?

[A62TURBO]

http://www.ecstuning.com/stage/edpd/...viewimage.html

[blmlozz]

http://www.ecstuning.com/stage/edpd/...viewimage.html

you have to remove the bar at some point to take the sproket off, haven't eyeballed it alot.. I'm assuming you're suggesting putting the bar back on when you have the seal semi-on?

[infinkc]

the cams are keyed for the bar, so if you take the bar off to remove the gears your are ok. the cams wont move when you pull the seal.

[A62TURBO]

I forgot which thread it was, but someone changed they're TB without removing the sprocket, try doing a search on here. If I remember correctly they slipped the belt on but it might be alittle tough.

[S4 in_lowplaces]

I forgot which thread it was, but someone changed they're TB without removing the sprocket, try doing a search on here. If I remember correctly they slipped the belt on but it might be alittle tough.

He WANTS to replace the cam seals on his own. he knows the cam seals have nothing to do with Timing belt.

[A62TURBO]

He WANTS to replace the cam seals on his own. he knows the cam seals have nothing to do with Timing belt.

I KNOW he wants to replace the seals, but he's also asking about keeping the cams in place while takes the sprockets off.

[dougyfresh]

car has 103k on it and i'm going to replace all the camshaft seals while i have the car apart doing tb and stuff, since this involves removing the sproket, besides making timing marks, anyone have any other suggestions to prevent the cam from moving?

Pull the valve covers off and set the engine to TDC for cyl#1.

In that position, the driver side exhaust cam keyway should be inline with the arrow on the bearing cap closest to the inter-cam chain.

The passenger side exhaust cam keyway should also be inline with the arrow on the bearing cap closest to the inter-cam chain. I forget if this chain is up front on the passenger side and out back on the driver side (that is how it is on a 2.8L).

Take timing belt off

Take exhaust cam timing belt gears off.

Loosen up bearing cap closest to cam seal

Remove cam seal and put new seals in. Retorque bearing cap to proper spec (10Nm?).

Reinstall cam timing belt gears.

Replace water pump and timing belt eccentric pulley and gas tensioner.

Reassemble timing belt and time the engine.

When reassembling the timing belt make sure the exhaust cams on either head are in-line with the arrow in the bearing cap. that denotes TDC cyl#1 for the heads. Make sure the crank is set to TDC cyl#1 and set tension on the timing belt. The engine is now in 'time'.

You don't need that cam lock bar if the valve covers are off and you're checking TDC on the heads via the cam keyway and arrow in bearing cap. I just did this including the cam tensioner seals on a B5 2.8L without the cam lock bar and crank lock pin. Its not that hard if you know what you are doing. My friend's 2.8L fired right up and runs solid.

[blmlozz]

Pull the valve covers off and set the engine to TDC for cyl#1.

In that position, the driver side exhaust cam keyway should be inline with the arrow on the bearing cap closest to the inter-cam chain.

The passenger side exhaust cam keyway should also be inline with the arrow on the bearing cap closest to the inter-cam chain. I forget if this chain is up front on the passenger side and out back on the driver side (that is how it is on a 2.8L).

Take timing belt off

Take exhaust cam timing belt gears off.

Loosen up bearing cap closest to cam seal

Remove cam seal and put new seals in. Retorque bearing cap to proper spec (10Nm?).

Reinstall cam timing belt gears.

Replace water pump and timing belt eccentric pulley and gas tensioner.

Reassemble timing belt and time the engine.

When reassembling the timing belt make sure the exhaust cams on either head are in-line with the arrow in the bearing cap. that denotes TDC cyl#1 for the heads. Make sure the crank is set to TDC cyl#1 and set tension on the timing belt. The engine is now in 'time'.

You don't need that cam lock bar if the valve covers are off and you're checking TDC on the heads via the cam keyway and arrow in bearing cap. I just did this including the cam tensioner seals on a B5 2.8L without the cam lock bar and crank lock pin. Its not that hard if you know what you are doing. My friend's 2.8L fired right up and runs solid.

this is *exactly* what I'm looking for, since I was planning on removing the valve covers this time around to change the cam plugs and such that I didn't do when I did the cover gaskets, thanks a bunch!

thanks for the other input as well guys.

[dougyfresh]

Images and what-not are in the Bentley if you have one. Might help relative to a few things I stated. Or, I'm sure someone can post up images from that section of the Bentley. I don't have one. I kind of fly blind and make a few phone calls when I am unsure of something.

[blmlozz]

Images and what-not are in the Bentley if you have one. Might help relative to a few things I stated. Or, I'm sure someone can post up images from that section of the Bentley. I don't have one. I kind of fly blind and make a few phone calls when I am unsure of something.

today's my 21st birthday,so I might try to haggle the old man for a bentley, been needing to get one anyway.

[GetAwayFromMe]

Even if the cams move you wont damage anything just move them back with the bar when you are done.

[goohead]

the 2.7 uses cylinder 3 for tdc

the cams only go on one way, there is a a little plate that works on the cambar to make sure its aligned. if it moves just align it back with the tool

[blmlozz]

I lack the cambar, something about $180 for a bent piece of $3 steel dosen't sit well with me. :(

im going to try it without one, since i'm sure it won't be very difficult in the first place, but i'm sure it's fairly simple to make with my machine skills anyway should i need it.

[dougyfresh]

the 2.7 uses cylinder 3 for tdc

Thank You. I couldn't remember if it was 1 or 3.

[goohead]

i got my cam bar for about $100 new