Dang waterfall noise

[phatcheeks]

I picked up a bigger, more expensive stop leak earlier today with a different chemistry.

It was more of a gel as it poured into the radiator. I idled it up to temp for 30 minutes or so and got both hoses warmed and flowing.

A few minutes after cooling off, the hoses actually were pliable. Prior to this application, the hoses held air pressure after cooling a bit, but still warm, thus not pulling coolant back.

I know it seemed like a HG the whole time, and I sorta expected it either right away when I put the new HG on at 150k miles or they'd hold. At least if this holds, I know I can fix it for $30 until I want to bust my knuckles.

Ive seen a lot of people use Blue Devil (not the pour and go version) with success on these 4.0s. I had a bottle ready to go but ended up just replacing my HGs at around 140k. My head were also warped. Had them resurfaced and so far so good.

Blue Devil Head Gasket Sealer: 1 Year Later - YouTube

 

[gaber6]

:ban:

Ive seen a lot of people use Blue Devil with success on these 4.0s. I had a bottle ready to go but ended up just replacing my HGs at around 140k. My head were also warped. Had them resurfaced and so far so good.

Yep. I feel the problem with these failing is it's between 2 cylinders on the driver side and the pressure is too big there for it to take well and have a lot of surface to hold.

Hopefully it'll work long enough for my trip to my families garage to do the work. I'll be sure to get the machining this time.

 

[TTucker]

Had a water type sound coming from my '05 Tacoma. Turned out to be water leaking into and under the dash/firewall area from a small rust hole over the windshield.

 

[gaber6]

Had a water type sound coming from my '05 Tacoma. Turned out to be water leaking into and under the dash/firewall area from a small rust hole over the windshield.

Yuck. Mines for sure the HG.
A few short trips and the air has circulated out and nearly 99% gone as the liquid fix is holding

 

[ArthurKotb]

Bars Leaks 1186

In 2015 I had a leak in my 1991 Camry's heater core. Replacing it meant removing the dashboard and some of the equipment behind it. I gave up after a few hours, mostly because it was so old.

I put in some Bar's Leaks 1186 and the leak sealed itself and I got rid of the car in 2021 with no leaks. It's supposed to be the best of all the treatments for cooling system leaks. You might want to give that a try.

Amazon.com

 

[gaber6]

In 2015 I had a leak in my 1991 Camry's heater core. Replacing it meant removing the dashboard and some of the equipment behind it. I gave up after a few hours, mostly because it was so old.

I put in some Bar's Leaks 1186 and the leak sealed itself and I got rid of the car in 2021 with no leaks. It's supposed to be the best of all the treatments for cooling system leaks. You might want to give that a try.

Amazon.com

This looks like the 3rd one I have in there. I still have about 1/3 of the bottle left to for an additional treatment but it seems to be helping whereas the others did nothing. This one is thicker to start with

 

[gaber6]

Well I'm kinda happy that there's this much water in the cylinder after taking it all apart.

Despite the tests showing no problem, the radiator pressure indicated there was.

Heads going to a machine shop tomorrow and getting my alternator rebuilt also while it's out. Was reading 18 volts.

Fun times.

 

[zguy1]

Just stumbled onto this thread. That's a lot of coolant in cylinder #6.

Did you check the heads for any warpage when you did the head gaskets the first time?

 

[gaber6]

Just stumbled onto this thread. That's a lot of coolant in cylinder #6.

Did you check the heads for any warpage when you did the head gaskets the first time?

Did not last time. Was being cheap. I thought the 2005 just had a gasket issue, not a warpage issue.

However... I should get 100k to 200k more miles out of this build as it's all OEM parts..

Now I have a transmission cooler as well as I pull a 13 foot camper full time, too.

 

[gaber6]

It's all back together.
A few hand tools and the specialty crank remover tool.

OEM valve grind set $275
Head machining/cleaning/testing $280
Head bolts $95
New serpentine belt $30
Toyota fpig $20
2 gal coolant $40
Timing guides $50
Gloves/cleaner $30

Total just over $800 to save more than $5k and get another 5 or 6 years of stress free driving from hopefully

 

[zguy1]

Congratulations! Having done this job myself, I respect anyone willing to take this on. Not only once, but twice.