Sealant For Engine Block Coolant Drain Plug.

[FalcoColumbarius]

I'm changing my coolant and the manual calls for "3M Nut Locking Part Number 4171 or equivalent". What is everyone using for this?

Falco.

[vstrom]

I just used the typical white Teflon tape. Was recommended by my mechanics at work. Seems to work.

[White Mule]

Hey Falco,

I used a lock-tight product that is made for such application. I changed my rad fluid last year at this time. All is good. Bought in Calgary at Auto-Value.

[FalcoColumbarius]

Well, I ended up using a product by Permatex ~ high temp sealant.

Thinking back, I don't remember doing this the last time I switched out the coolant. The last two years I've had a wee coolant loss, since I've employed the sealant there is no loss, albeit's only been a couple of weeks. Here's the rub, mind ~ I went to London Drugs to pick up a couple of jugs of distilled water. I took it off the shelf and read the label and yes ~ distilled. So I grabbed another one and went to the till. Fast forward, I've drained the coolant, flushed the system, drained out the rad, the block and the rear heater. Put the sealant on the bung and put her all back together and have so far put in six litres of coolant mixture when I notice the label on the jug says "Spring Water". The label looks exactly like the "Distilled Water" label with the exception of the words "Spring Water". This has got to be the antithesis of distilled and I gotta say that I'm a wee bit "perturbed" by the whole string of events. I guess the good side of this is my cooling system is going to get a royal flush, so to speak. Hmmph!

Falco.

[freaky930]

Hey!!

Never, ever, use distilled water since it will speed up corrosion of aluminum parts due to the minimized amount of ions in it.
Use boiled water instead.
Google the bad effects of distilled water on the engine, since I won't be able to explain it in english due to all the chemical terms..

Cheers,

Will