What’s this cooing system symptom?

Discussion in '6.9L IH & 7.3L IDI Diesels' started by Cubey, Jun 13, 2018.

  1. Cubey

    Cubey Full Access Member

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    I’d rather spend a little more for the Napa one in the link I posted. Plus, the matching filters from Napa come precharged with SCAs. It looks sturdier than that eBay one too.
     
  2. gnathv

    gnathv Full Access Member

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    It’s as stout as the Napa or more (3/4 machined) and if you plumb it the way it is in the article i’d Like to know how much you spend in fittings. The one I bought came with a Donaldson P554685 filter. The filter is 11/16 x 16 same as Napa. No argument about your choice, just want you to know I wouldn’t recommend something I had no experience with.
     
  3. chris142

    chris142 Full Access Member

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    Coolant needs to be replaced every couple years or so. If that's not done it will become acidic and will start eating metal,creating rust. Your mess is from a lack of maintenance. I have seen much worse.
     
  4. Cubey

    Cubey Full Access Member

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    I saw some of this last year and did a band aid of just replacing a couple gallons. I was in a parking lot so I couldn’t do much more than that.

    The really yucky stuff seems to spill into the overflow. I pulled the bottle last year and dumped it out (into a container of course) and refilled it, after doing a slosh rinse. I should probably do that again.

    Yes it needs real servicing but it will just have to wait.
     
  5. saburai

    saburai Full Access Member

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    Pardon my ignorance, but can you show me an example and explain the benefits?
     
  6. 79jasper

    79jasper Chickenhawk

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    Bypass filters a small percentage at a time.
    Per example, like the kit linked above.
    A full flow is just that. Typically will go in the feed line to the heater core (which is "on" constantly, even if using a shutoff valve) that way its seeing a lot of coolant flow.
    Most of the other threads here on coolant filters will be full flow. Just look at the filter specs, some will state a orifice is used to slow flow.

    Sent from my SM-G892A using Tapatalk
     
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  7. saburai

    saburai Full Access Member

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    Gotcha. I'm assuming that the disadvantage of the non bypass system is that if the filter were to stop flowing, you'd, at best, have a serious problem that would need immediate attention. Not so much with the bypass... don't get me wrong, I'm all for maximum filtration, just being devil's advocate...
     
  8. 79jasper

    79jasper Chickenhawk

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    No, heater would just weaken. Which is what many use as a indicator to change the filter.

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  9. saburai

    saburai Full Access Member

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    Of courses, I guess I didn't think that through!
     

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