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That's certainly one benefit, but I think the bigger reason for installing them is to make opening the block drains much easier during future cooling system maintenance.
I wouldn't be too concerned about failure of the valve. Lots of people (myself included) have been using these for a long time on oil pans and I don't recall seeing anyone mention a failure, and oil change intervals are far more frequent than cooling flushes.
Alright, I'll probably invest in them then. Thanks for the help.
Originally Posted by bismic
Personally I wouldn't use CLR, but who knows, it may be fine.
Sounds like a good list to me. Probably any coolant filter decision will be of some help. The "EGR delete vs cooler upgrade decision" is a personal choice IMO, but some model years don't have proper fan operation without an EGR valve plugged in and my opinion is if you delete the EGR system you need a tuner to take that into account in the combustion controls.
I have had the block drain fumoto valves for over a year now. They are doing quite fine. Drain plug is 16x1.5. I used the O-Ring from oil drain plug part # 3C3Z-6026-DA
Like I said, I have a feeling CLR is gonna be the same thing as using the VC-9 cleaner. I've used it in a multitude of things and haven't had any issues with it yet. I will be getting a tuner for the truck after the head studs are in, which I plan to do at the same time as the EGR/cooler delete. I have heard that you want to use the o-ring you listed so I'll make sure I get those to go with the valves.
Originally Posted by chetspencer
When I do a flush in the future, I will buy 4 gallons of Evapo-Rust at Harbor Freight. Drain and fill undiluted to the brim. Let it sit for 24-36 hours and presto not a speck of rust. At least that's the plan I'm going to use on my 1959 F100 Y block that's sat for 15 years.
I'm also sporting a pre-filter screen in my oil cooler cover that seems to be working flawlessly, time and miles will tell if it was a bad idea or not.
The Evapo-Rust seems like a good idea as well. It seems like there's definitely more than one way to skin a cat.
x2 I bought F-108N for my block drains and it was huge time saver for the multiple distilled water flushes. I ran tubing from the valves and zipped tied them togther in the middle underneath for a centralized drain point. I could jack up the X, put a 5-gallon bucket under the tubing, open one valvue then the other and not spill a drop. Very effective.
As a side, I also installed the Fumoto F-111N in my oil pan for easier oil changes.
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