Pipe plug size? (water pump housing)

[Jesco]

Hi,
I will plug the holes for the heating hoses on the water pump housing. Wich size should I buy on the plugs. I have pre -70 housing (same size on the fittings/holes).

Thanks!

[tan top]

think its 3/8 " National pipe thread !!  from memory , plumbers shop will have them

[maxwellwedge]

The hose is 5/8"  - 3/8" sounds a little small TT. Buy a bunch of different sizes if you can't eyeball it - they will each be under a buck.

[tan top]

The hose is 5/8"  - 3/8" sounds a little small TT. Buy a bunch of different sizes if you can't eyeball it - they will each be under a buck.

yeah i think you could be right  ,  could be a 1/2 " national pipe thread  , thinking about  it    was in the garage earlier , should of had a look  , will do tomorrow  

[greenpigs]

1/2 16 should work.

[Jesco]

Cool - sorry for being lazy. Will order plugs and then plug it. I save a little time when I get all awesome help from you guys. THANKS! 

[greenpigs]

Only buying something once is rare for me.

[Jesco]

I will order more stuff like a new povermaster xs starter and more. not just two plugs if you mean that. I always order part. Cant understand how much parts the cars need

Anyone know where to find 5/8" plugs like vacuum plugs to plug the pipes from the heater on the firewall.
Try to do some search on summit but just find vacuum plugs up to 3/8"

[werner]

Just installed some in my water pump. There are 3/8 npt.

[maxwellwedge]

Quote: Just installed some in my water pump. There are 3/8 npt.


A 69, both 5/8" hose WP housing?

[Jesco]

Yepp - 5/8" hose both sides. And it's a stock water pump housing. 3/8" NPT sounds a little small. Think 1/2" will be good

[Jesco]

Purchased 3/8 brass plugs and they fit like a glove 

[Musicman]

Like I done told ya... 0.675 = 3/8" NPT

[Jesco]

Like I done told ya... 0.675 = 3/8" NPT

[1970Moparmann]

Guy's, I'm going to activate this topic again..... 

Is this what your talking about for a plug?   If so, you guys use some teflon tape or something else so it doesn't leak?

http://www.fastenal.com/web/products/detail.ex?sku=80745&ucst=t

[tan top]

yes teflon tape or liquid thread sealer , i prefure the tape though