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fd3s water pump removal and alternator removal question?

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fd3s water pump removal and alternator removal question?

Old 06-19-19, 11:27 PM
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fd3s water pump removal and alternator removal question?

Hey Guys, I'm in the middle of upgrading all my hoses, new thermostat, new water pump, and new koyo N radiator. I just had a few questions and I may be over thinking this as I never changed any water pump whatsoever.
Whats the best way to remove and install a water pump on the FD and is does it require to remove the thermostat housing?

I saw this from the service manual





While I have your attention, I might get flamed for this, but I'm told the FD alternator was extremely easy to remove. Gonna be honest, I was struggling. I simply loosed the nut marked in blue and took a ratchet to loosen the bolt in red (See image below)
I was struggling for about 20 minutes and I managed to get lucky.
If you watch the howzer youtube link,
@4:20, you'll find that the alternator is able to travel downwards smoothly. I mimmick the same action to no avail. What am I doing wrong?

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Old 06-19-19, 11:41 PM
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Did you loosen the pilot bolt right above the water pump?
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Old 06-20-19, 12:09 AM
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Originally Posted by ZE Power MX6 View Post
Did you loosen the pilot bolt right above the water pump?
The pivoting bolt that's holding the alternator in? Sure did, still nada.
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Old 06-20-19, 12:15 AM
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Those are the only things that hold the alternator in place, loosen the pivot bolt and the tensioner nut, and tighten the tensioner bolt to lower the alternator. If that’s the original alternator then you might have to use some force to rotate it.
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Old 06-20-19, 09:55 AM
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Originally Posted by ZE Power MX6 View Post
Those are the only things that hold the alternator in place, loosen the pivot bolt and the tensioner nut, and tighten the tensioner bolt to lower the alternator. If that’s the original alternator then you might have to use some force to rotate it.
Yep, if bolt at 1 is out, it's probably just stuck from the hinge being compressed in that location. Pry under 2 and it should come out. As for the WP, you probably should at least check the T-stat if not flat out replace it while you at it. You may also want to look into an upgraded pump, MAZMART or IRP

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Old 06-20-19, 10:33 AM
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Originally Posted by ZE Power MX6 View Post
Those are the only things that hold the alternator in place, loosen the pivot bolt and the tensioner nut, and tighten the tensioner bolt to lower the alternator. If thatís the original alternator then you might have to use some force to rotate it.
Alternator isn't OEM, been replaced by previous owner.

Originally Posted by TomU View Post
Yep, if bolt at 1 is out, it's probably just stuck from the hinge being compressed in that location. Pry under 2 and it should come out. As for the WP, you probably should at least check the T-stat if not flat out replace it while you at it. You may also want to look into an upgraded pump, MAZMART or IRP
I'll give this a go. Do I have to remove the alternator to remove the WP. IIRC, there was a bolt to the far right that is holding the alternator bracket, but wasn't sure?
I've already got new thermostat in.
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Old 06-20-19, 10:58 AM
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The alternator doesn't have to come out to do the water pump. They both share that bolt. You are correct. The one on the (driver) left. The only difficulty you may have is scraping off the old gasket if it doesn't peel off easily. As far as your stuck-ish alternator, remove the pilot bolt completely and remove the tension bracket completely. Same as mentioned, GENTLY pry up on from the bottom and it will release.

Edit: correction..... don't remove the tension bracket completely. I don't think you can anyway with your ac/ps bracket. You're going to want to remove the hardware from the bracket that tensions the alternator, remove the pilot bolt and then GENTLY pry up at the mount point of the pilot bolt. This will free that corner of the alternator and you'll be able yo shimmy it out.

Last edited by cr-rex; 06-20-19 at 11:00 AM.
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Old 06-20-19, 10:59 AM
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Don't think you need to remove the alternator to get the WP out, but i believe you need to remove the bracket that holds the tensioner pulley for the PS and AC

You should be able to figure it out by looking. It should be pretty straight forward.
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Old 06-20-19, 12:28 PM
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Originally Posted by cr-rex View Post
The alternator doesn't have to come out to do the water pump. They both share that bolt. You are correct. The one on the (driver) left. The only difficulty you may have is scraping off the old gasket if it doesn't peel off easily. As far as your stuck-ish alternator, remove the pilot bolt completely and remove the tension bracket completely. Same as mentioned, GENTLY pry up on from the bottom and it will release.

Edit: correction..... don't remove the tension bracket completely. I don't think you can anyway with your ac/ps bracket. You're going to want to remove the hardware from the bracket that tensions the alternator, remove the pilot bolt and then GENTLY pry up at the mount point of the pilot bolt. This will free that corner of the alternator and you'll be able yo shimmy it out.
Originally Posted by TomU View Post
Don't think you need to remove the alternator to get the WP out, but i believe you need to remove the bracket that holds the tensioner pulley for the PS and AC

You should be able to figure it out by looking. It should be pretty straight forward.
I do appreciate the RX7 community as opposed to the evo community. You guys have been a tremendous help.
I'll try this out after work and let you guys know.
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Old 06-20-19, 03:33 PM
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Originally Posted by cr-rex View Post
Edit: correction..... don't remove the tension bracket completely. I don't think you can anyway with your ac/ps bracket. You're going to want to remove the hardware from the bracket that tensions the alternator, remove the pilot bolt and then GENTLY pry up at the mount point of the pilot bolt. This will free that corner of the alternator and you'll be able yo shimmy it out.
Think he's replacing the water pump and not the alternator. To get the WP out, I believe you need to remove the tension bracket. You should be able to easily see if you do

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Old 06-20-19, 03:34 PM
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Originally Posted by anh_cloud9 View Post
I do appreciate the RX7 community as opposed to the evo community.
That generally goes w/o saying
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