Peyman

iTrader: (2)

Hey guys,

so as you might know from my previous post, i was going to change my thermostat and the right side bolt broke off.

I went through a bounch of trouble becuase when i was drilling my old bolt out, my drill bit broke off and got stuck in the bolt.....so i finally got the drill bit off, and i drilled a new hole.

Here is the thread, it explains better: https://www.rx7club.com/2nd-generation-specific-1986-1992-17/i-broke-thermostat-bolt-rusted-496929/

It was suggested that i just put a longer bolt in there, and put a nut on the other side and it should be tight.

Well, i went to put the long bolt in and put a nut on it, but there is no space at all for a nut. Am I going to need a new water pump? The bolt wont get tight because the new hole doesn't have any threads.

I have no car for tomorrow so i'm screwed.

What to do?

classicauto

iTrader: (3)

is there enough material around the new hole to allow you tap it and use a slighty larger bolt?

edit: Ideally though in the case of a waterpump, you don't want a premature failure right? so if its even close on having enough material to tap......don't bother......as mentioned below you can find new housings for a dime a dozen.

alexdimen

iTrader: (13)

you don't necessarily need a whole new water pump, just a new or used aluminum housing.

i have one laying around, let me know if you need it.

Peyman

iTrader: (2)

Is it fairly easy to remove the old housing and replacing the internals on the new one?

Carzy Driver

yeah it easy as 7-8 bolts/nuts, I think its 4 and 4

alexdimen

iTrader: (13)

yeah something like that, if this was something more expensive and harder to replace tapping it would be better, but i think it would be easier to just replace the housing.

Peyman

iTrader: (2)

i'm going to try to tap it today after school (i'm at school right now) and i really hope it will work because i hate it when the rex is not up and runnin'.

I want to accelerate damnit! (ford ranger can't do a whole lot of that)

I'll let yall know how it goes, thanks everyone!

Smoken'

iTrader: (1)

Drill to a bigger size and tap the whole. If that dosn't work, you will need a new water pump housing.

eriksseven

iTrader: (6)

Just get a WP housing from 'alexdiman' or whoever and save yourself the headache, lol. Or post in your local section and meet up with someone in your area who's got one laying around. No point wasting any more time on something as silly as a jacked up WP housing.

theagavejazz

iTrader: (4)

Is it normal for my waterpump to start turning brown every cople of months? I put a new one in September and it's already all brown, the one before that was all rusted also.

Peyman

iTrader: (2)

on a couple of months?

No, thats not normal, it must be extremely dirty in there, or you are not flushing the cooling system like you should. I'm not questioning your ability, i'm just trying to help. So....do you fill it up with water and run the car, with the heater on full blast?flush it out like that, repeating it until the water drains out clear?

you might want to use coolant system cleaner?

Once the water runs out clear, put water in there again, drive around with the heater on full blast, and drain it out a last time.

Now you're ready to mix coolant and water....

Peyman

iTrader: (2)

btw, i re-threaded the hole, but i ran out of time, and the bolt i had got for it was the wrong size so i'll find out for sure if it is going to work for me tomorrow.