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Timing Belt / Water Pump DIY - Step by Step Pictures

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  • 91greg325i
    replied
    Originally posted by R32toE30 View Post
    I dropped my radiator fan when I was trying to unscrew it. It broke a blade off. Can I still use it????
    I've never done that before, but I assume it would still work, just not as effectively. Look in the parts for sale section of classifieds and you can probably pick one up for relatively cheap if you do start to notice adverse effects of the missing blade.

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  • R32toE30
    replied
    I dropped my radiator fan when I was trying to unscrew it. It broke a blade off. Can I still use it????

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  • mkcman17
    replied
    hmmmm i didn't bleed mine at all.

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  • 91greg325i
    replied
    Originally posted by myfirst325 View Post
    Well I changed out the waterpump and timing belt with no issues. The car started right up. It overheated however within a couple of minutes so then I troubleshot it down to the aux fan not working. I wired the fan direct to the batt and it spun on both hi and low. I then took apart the rad switch and after playing with that for about an hour it dawned on me to check the fuses. Sure enough both the lo and high speed fuses were blown. I replaced them and the fan then worked but still overheated. I followed the bleeding instructions that someone posted and the temp dropped to the middle. With the accelerator down it actually drops to just above the blue. I left the aux fan wired direct at the rad switch so it runs whenever the ignition switch is on. I also dont have the thermostat in but will throw it back in tomorrow to try and keep the operating temp pegged in the middle.
    Glad you got it figured out. It isn't uncommon for people to bleed the system improperly, so it may just be air working its way out. Glad you got it done.

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  • myfirst325
    replied
    Well I changed out the waterpump and timing belt with no issues. The car started right up. It overheated however within a couple of minutes so then I troubleshot it down to the aux fan not working. I wired the fan direct to the batt and it spun on both hi and low. I then took apart the rad switch and after playing with that for about an hour it dawned on me to check the fuses. Sure enough both the lo and high speed fuses were blown. I replaced them and the fan then worked but still overheated. I followed the bleeding instructions that someone posted and the temp dropped to the middle. With the accelerator down it actually drops to just above the blue. I left the aux fan wired direct at the rad switch so it runs whenever the ignition switch is on. I also dont have the thermostat in but will throw it back in tomorrow to try and keep the operating temp pegged in the middle.

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  • myfirst325
    replied
    Thank you both!

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  • 91greg325i
    replied
    Originally posted by TrentW View Post
    The Continental kit is the one you want. You can get it from blunt, Pelican, BMP, etc.
    +1 Continental T-belt kit w/ a Graf water pump is what I always use. No issues so far, and I've done quite a few.

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  • TrentW
    replied
    The Continental kit is the one you want. You can get it from blunt, Pelican, BMP, etc.

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  • myfirst325
    replied
    Okay ready to start! Any recommended timing belt kits? After reading all this info I'm definitely replacing the TB WP Thermostat and also the camshaft, crankshaft, and I/M shaft seals.

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  • Luis325
    replied
    Nice writeup!

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  • imdashiz
    replied
    oh ok awesome. thanks.

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  • 91greg325i
    replied
    Originally posted by imdashiz View Post
    without hitting the valves? so I somehow have to move both the crank and the camshaft at the same time
    You may hit the valves, but its not like you are hitting them 3000 times per minute with a ton of force. It's one thing to hit them when the car is running, it is a completely different thing if you just nudge them while rotating the engine by hand. You realistically won't run into any trouble when rotating one, followed by the other.

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  • imdashiz
    replied
    without hitting the valves? so I somehow have to move both the crank and the camshaft at the same time

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  • 91greg325i
    replied
    Originally posted by imdashiz View Post
    so what if i took off the belt without setting anything at TDC?
    There are timing marks on both the head and the block that you can line up. The head has a nick in it at about the 2 o'clock position that should match up with a notch on the timing belt gear. The same principle applies to the block. Just match everything up, and you'll be good to go.

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  • imdashiz
    replied
    so what if i took off the belt without setting anything at TDC?

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