Replacing drain cock on block

Unknone86
Club4AG Regular
Posts: 22
Joined: Mon Jan 14, 2013 10:38 pm
Location: San Francisco, Ca.
Contact:

Replacing drain cock on block

Postby Unknone86 » Mon Apr 30, 2018 10:26 pm

Hello,

Has anyone replaced the drain cock on the block of the 4age? The water drain valve next to the oil pressure sender on the driver side.

If you have what did you use? I'm looking for a bolt/screw thing that can handle both the heat and pressure without leaking. I'm looking to create some room there for some oil cooler lines.

Thanks, Kedar

Disable adblock

This site is supported by ads and donations.
If you see this text you are blocking our ads.
Please consider a Donation to support the site.


davew7
Club4AG Enthusiast
Posts: 170
Joined: Fri Jun 06, 2014 4:34 am
Location: Michigan

Re: Replacing drain cock on block

Postby davew7 » Tue May 01, 2018 3:36 am

On one of my 4AGE motors I just used a standard pipe plug and gasket sealer. Should be able to get one at your local hardware store. If it is a real tight clearance requirement, you could get a pipe plug with a Allen Socket Head. Davew7

Autohaus_Z
Club4AG Enthusiast
Posts: 126
Joined: Thu Jan 10, 2013 10:45 pm
Location: San Jose, CA

Re: Replacing drain cock on block

Postby Autohaus_Z » Tue May 01, 2018 3:24 pm

davew7 wrote:On one of my 4AGE motors I just used a standard pipe plug and gasket sealer. Should be able to get one at your local hardware store. If it is a real tight clearance requirement, you could get a pipe plug with a Allen Socket Head. Davew7


This is probably your best solution. Similarly I needed to change the block drain for oil cooler line clearance. I ended up cutting the stock one down and welding it shut.

Im not sure what thread/pitch the block drain is, but it wouldnt hurt to run an NPT tap through it to clean up the threads.
Owner. Car Make Autohaus. San Jose, CA.
RnD/Product Testing. Battle Garage RS.
Amsoil Dealer # 5615215
IG @Autohaus_Z for AE86 fun, T50 trans builds, and track life!

jdm86gtz
Club4AG Expert
Posts: 307
Joined: Fri Jan 11, 2013 10:13 pm
Location: Ireland

Re: Replacing drain cock on block

Postby jdm86gtz » Wed May 02, 2018 4:50 am

99% sure its a tapered 1/4" BSP (BSPT) plug that you need rather than a 1/4" NPT plug.
The 20Vs have just a plug without the drain cock: Toyota P/N 90345-52003

Disable adblock

This site is supported by ads and donations.
If you see this text you are blocking our ads.
Please consider a Donation to support the site.


Unknone86
Club4AG Regular
Posts: 22
Joined: Mon Jan 14, 2013 10:38 pm
Location: San Francisco, Ca.
Contact:

Re: Replacing drain cock on block

Postby Unknone86 » Mon May 14, 2018 6:23 pm

Sweet, thanks everyone!

User avatar
Rogue-AE95
Club4AG Expert
Posts: 428
Joined: Thu Jan 10, 2013 4:03 pm
Location: Tampa Bay, FL

Re: Replacing drain cock on block

Postby Rogue-AE95 » Fri Jun 01, 2018 4:36 pm

jdm86gtz wrote:The 20Vs have just a plug without the drain cock: Toyota P/N 90345-52003


That same plug is also used in the AE101 4A-FE. If you can find a pick & pull with some 93-97 Corollas, you should be able to grab one. Might be a little work to get at, being behind the alternator.
'88 Corolla All-Trac

Disable adblock

This site is supported by ads and donations.
If you see this text you are blocking our ads.
Please consider a Donation to support the site.



Return to “TECH: Corolla AE86”

Who is online

Users browsing this forum: No registered users and 2 guests