Yes, as an engineer myself, the repair that I want done is to do it exactly by the book which would be to the original engineering specifications, which would indeed include a new gasket.

 

Honda corporate, the technician who I am on a first name basis with, and the service writer all told me that the refrigerant does cause the corrosion. The tech elaborated and said every time they change the refrigerant, they have issues with at least some Honda models. For this specific failure, it affects the Civic and CR-V. Accords, Oddysseys, etc. do not have the issue.

 

First rule of engineering, "never reinvent the wheel", at least that's what they drilled into me. Lol

However, replacing a gasket is something any grease monkey can do.

That's why on my car I used a gasket on my oil pan
Required less skill for me as a DIY. Lol

It came from the factory with Toyota FPIG sealer and I wasn't confident enough to use it and get it perfect the first time.
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Makes we wonder if they chose the wrong alloys in their design.

 

And yet my engine isn't full of debris from machining.

 

My work is full of fleet F150s and Silverados. Like many fleet vehicles they are swapped out for new models after around 4yrs or so.

I actually know one small business company that has 2nd gen Tundras as company vehicles and I asked the owner about the choice and he simply stated they never give him any problems. My work actually has a few Tacomas (3.5 liter V6) and 4Runners. But the rest are Silverado and F150s with a small sprinkle or Ram 1500 and gas 3/4 ton Fords

My dad has a 2012 Coyote F150. I believe around 60-70k miles his electric steering went out. Luckily it was under extended warranty. I want to say it was like a $1100-$1200 repair if I’m not mistaken. You wouldn’t believe the maintenance I didn’t do in my 2nd gen Tundra. I’m more of a if it break then I fix/replace than a preventative maintenance person. Oil, gas and filters and let it ride!!

This is why I think you see so many domestic fleet sales.

Only way I can like your post!!

Thankfully the NA V8 @JDR76 has in his current 2.5 gen Tundra is free of debris as well. The biggest knock on the 5.7 is it’s thirsty especially when you start adding a lift and bigger wheels and tires.

 

What's so hard about RTV other than having to wait for it to dry?

 

Everybody has a story, but the bottom line is companies wouldn’t depend on domestic trucks if they were unreliable. They’re not.

 

Toyota simply does not compete well in the work truck and fleet segments, and Toyota knows this. There is almost no reason to buy a fleet of Tundras. There is no regular cab, no 2500 HD models etc etc. Tundra also lacks a basic engine as well. Your gen Tundra Toyota tried hard to get into the work truck segment and it didn’t work. I remember in 2006 they were the infrastructure shows and trade shows trying to bring awareness. Toyota also doesn’t compete anywhere near the top end of the off road trucks, TRD Pro is nowhere near the Raptor or the RAM equivalent. Maybe close to the GM but I’m not sure. Toyota targets a specific buyer and they do well doing that.

 

Like your post!!

I bet a 2nd gen regular cab Tundra with a blower is a fun truck. Those blown single cab Coyotes scoot!!

 

Yup. So much so that Ford has taken notice, and while 4wd costs $3800 on nearly every version of the F150, if you get an XL single cab shortbed with the 5.0, the price jumps to $5015.

 

That. Literally exactly that. It's slower and requires a better machine to apply vs slapping a gasket on

 

Just the sound alone, couldn’t care less how fast the 6 cylinder other SUVs are.

 

Waiting for it to dry is the easy part.

Beading a gasket by hand is harder than slapping one on out of a box, IMO.

I like gaskets because I don't trust my hand made gasket making skills yet.

I've done it a couple times with success but still makes me nervous of having to do the job again if I don't get it right and it leaks.

 

I secured a low pressure oil cooler return line with JB Weld. The engine is still on a stand. Wish me luck?

 

Wishing you success friend!

I use a lot of JB Weld for work but nothing I use it for is under pressure, only to keep very small precision parts in place.