Radiator and neck filler cap question

[unknown007]

Which one needs the spring on?1 or 2?

I got a spring on number 2 and bought one for the number 1 because I though it was causing a leakage on the neck filler.I guess maybe the rubber it had went out causing the coolant leak on the filler neck.Well let me know thanks.

[Infinitiguy19]

Spring cap goes on the radiator, Non spring cap goes on the aluminum filler neck.

[unknown007]

Okay now I gotta buy a new one. I threw my old one away but was leaking anyways.I replace the RTV on the neck filler which looks fine.

[Infinitiguy19]

Yea ever time you change out the coolant (Hopefully ever 5 years at very least) you have to change both coolant caps.

Read this and see why your aluminum parts were corroded:

The only problem with 20-25% AF in distilled water [aluminum blocks don't rust they beneficially corrode to form a protective film] is the additives are half the 50/50 strength so they wear out faster. 100,000 mile becomes 25,000 miles.But that is no problem for those that use my spring rad drain method and refill with 3 quarts Pure distilled water and the late fall rad drain and refill with 3 quarts of 100% long life antifreeze.So it cyles between 20-48% [25-50] with new additives every fall.

It is very easy to measure the PH of the coolant or cathodic action [battery like] with inexpensive dc volt meter [one lead on the neck and one tip submersed in the coolant at neck......any voltage above 50-75 millivolts means the additives are too low and the coolant has turned acidic!

Actually you don't need the ethylene glycol in the AF. you just need the additives to protect the aluminum and distilled water would be perfect above freezing.[warning the heater core could freeze from the ac cold on some cars if the blocking door failed so always use 20% AF as a safety factor].

See how they cheat is the 50/50 PREMIX is half distilled water so they are selling you 2 quarts of water for $3.00-$5.00 and the whole gallon is $6-$10.

The Redlne Wetter Water [surface tension reducer-steam bubble burster] rounds out the perfect coolant and it must be replenished as well 1 oz per quart drained. So buy 2 bottles and you are good between total flushes....every year if you are like me but realistically every 2 years.

I'm not sure this article was good for the general public as they didn't delineate the differences between iron and aluminum blocks and heads.

......"Super Coolant contains inhibitors only—special antifoaming agents and protection during boiling—Turcotte says, and it's compatible with aluminum, iron, and other materials common in older cars.

Imagine boosting the effectiveness of your cooling system 25 percent simply by changing the radiator fluid.".........?????

Very confusing and a sales pitch for a new advertiser!!!!!!!!!!!!!-Q45Tech

[unknown007]

Just came to mind. Maybe when I added water after my coolant hose broke caused the corrosion in the thermostat and stuff?I didnt have distilled water in hand.Well guess a good flush will help tons a very good good flush.

[Infinitiguy19]

Yea like i said go to your super market grab a car and fill it with distilled water.

Then flush it with that.

But if you have any of the old coolant I would defiantly perform that test.

[unknown007]

the pressure test thing?I was gonna do the leak down test I think it was.