I am ordering a water temp sensor for my greddy gauge and wanted to know if I am missing anything on this project.

Remove main pulley
Remove coolant neck and water pump housing.

I do not need to remove the water pump....correct? my pump is fine.

Do I need any new gaskets? or just RTV.

thanks.

 

bump

 

No need to remove the water pump, just the housing, with the water pump still attached. After you drill and tap a new hole, make sure you blow it out REAL good with some air.

James

 

do i need a gasket for the housing when i remove it?

 

I highly recommend you remove the water pump. It's much harder to do a nice straight tap with the pump in-situ.

You should definitely replace the gasket if you remove it.

 

also no need to remove the main pully

 

if you take the pump off, it is a major phuckin bitch taking it off and twice as phuckin hard putting it back on...

it involves taking off the following.
1. altenator.
2. Air compressor.
3. Oil Pump.
4. All main pulleys ( which is really hard putting back on lining holes)
5. fan and fan shroud and air box cover stuff.
6. Coolant hoses.
7. All belts

then you got all these nuts and bolts that you gotta remember where they go.

 

Altenator- yes you have to remove this
Air pump- yup remove
Oil Pump???- i'm assuming you mean the MOP? if so you only have to remove thelines not the pump itself.
Fan- yes, fan shroud- yes
coolant hose's and belts- yes
Pully's- no, you don't need to remove the pully's
And you DON'T need air tools

It's really not that big of a job, just don't rush it and you will be fine.

 

ummm.... i said nothing bout using air tools... and you do have to remove main engine pulleys to be able to pull the entire water pump housing off...as that big pulley blocks it from coming off.

and yes i ment MOP unit... removing the individual lines would be complicated and possibly crack the lines in the process.

 

Speaking of tapping the pump housing::: Threadjack (sorry!!) : I have a T2 and i snapped a bolt for the thermo housing, as well as 2 easy outs trying to get it out. I also have a spare N/A pump housing. Is there a way I can tap the hole for the coolant temp sensor? From what I understand there isn't an opening on the N/a for the A/C fan. Is this correct (haven't looked yet, the N/A pump housing is 40 miles away)? Is this the sensor in the back of the housing next to the nipple running to the BAC? Final question (to avoid the trouble of drilling unnecessary holes) is this sensor necessary? I have removed the A/C as well (for now).

 

I have a manual watertemp gauge that had to get the waterpump housing tapped for the fitting to go into for the gauge and i have had no problems.

It was tapped into the little part coming straight up thats about the size of a nickel and goes in alittle bit on the waterpump, that spot worked perfectly for me, i had a shop do it.

If you want a pic of where the spot is i can take one.

 

I really hope you don't do any work on your car, because if you think a water pump R&R is "phuckin hard" and haven't figured out how to keep track of nuts and bolts, then you have no place working on cars (or posting "advice" in a technical forum).

Take stuff off, put stuff back on. This isn't rocket science.

 

well luckily my engine bay is gutted I run haltech, there is my motor and my radiator in the engine bay.

I know there is a gasket for the water pump, but what I wanted to know was if there was a gasket to order before I remove the water pump housing....or should I just use RTV


With a RX7 you cant really run down to NAPA and grab a gasket when ya need it.

 

i never said it cant be done.. i did it my self. but it wasnt fun...

so sorry to hear that your panties are tied in a knot...

 

There is a pre-cut gasket. Too bad you dont live near by, I have a bunch laying around. Also, why not use the stock temp sender location for your gauge?

 

well the stock one on the back of the housing is going to my haltech for temp sensor. Are you talking about the one on the top with the small male fitting on it? Thats just sitting there.

I have Greddy peak hold guages I was just gonna drill and tap....what do you recommend.

Cause I have to keep that temp sensor on the back for haltech.

 

Yes, there is a gasket. I think Mazdatrix calls it a "water gasket."

http://www.mazdatrix.com/b9wpumps.htm

I did most of my gasket replacements with the engine out of the car, so I had no trouble...

James

 

hey j-rat ill give ya a couple bucks if you ship it in a bubble wrapped manilla envolope. that should get it here safely. just a thought.

BTW JRAT you ever find those stock turbo files on your haltech??? I am messing with spit and timing advance now. Shoot for 4 split at starting boost and tapering to 12 split at 14lbs

 

Well, tell you what.

You throw me a few bucks and I will send you a gasket and a disk with every map I have.

Is your front cover S4 or S5?

 

Another good spot to tap is the water pump housing just near the alternator bracket. Where the housing meets the block there are two passages. For gauges I often tap the outer passage. It can be done without draining the water or removing anything but the alternator. Not quite sure if there's enough room for the 3/8" NPT needed for the Haltech sensor though.

 

how do you tap the housing without getting metal shavings in there. do tell

 

You'll get metal shavings into the housing...Clean out what you can with a Q-tip covered in grease, leave the rest. They'll come out next time you change the coolant. It also helps if you grease the tap as well.

 

any pics of where you are are tapping into it?

 

Off-topic, but it amuses me that people thing an aftermarket ECU will make the engine bay much tidier. The only thing it allows you to remove is the AFM, so where's the big change?

That's why you run down to Mazda instead. Or run you your computer and order one from Mazdatrix.

I'm just making sure that people reading this thread are aware that with basic mechanical skills and simple tools this is not a difficult job.

Because very few aftermarket temp gauge senders fit in the hole, they're much bigger than the stock sender. This is the sender on the rear plate remember, not the back of the water pump.

Here's some info and pics on where I put mine:

https://www.rx7club.com/showthread.p...42#post5346642

 

this is a very simple job anyone should be able to do it. . prior knowledge or not you will be fine just stay organized