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That's interesting - so I'm guessing option #2 in this case is a DIY project?

Something you could try prior to committing to a repipe is a cooling system rust remover (e.g. CRC's Thermocure rust remover). It could get rid of enough of that gack that the existing piping could remain.

Dr_Strangelove (whew!) wrote: ↑Wed Apr 20, 2022 3:17 pm That's interesting - so I'm guessing option #2 in this case is a DIY project?

Yes, option 2 would be DIY. I think the time and talent required are within my parameters.

Option 1 would require me to buy a welder and try to learn how to use it - so I'd basically turn myself into Schnelly, Jr. And we can only tolerate one of him on the planet at a time.

02TX996Cab wrote: ↑Wed Apr 20, 2022 5:43 pm Something you could try prior to committing to a repipe is a cooling system rust remover (e.g. CRC's Thermocure rust remover). It could get rid of enough of that gack that the existing piping could remain.

Wow, I hadn't even thought of that. I just search XWeb Forums, and there are a couple of references to using it to clean out the engine block. I'll have to post up over there to see if anyone has used it to get rid of cooling pipe rust, since that is a common problem on the X1/9. Thanks for the tip!