Removal of Heat Exchanger Core
Due to failure of a bearing in the circulatory water pump on our Volvo TMD30A I had to remove the heat exchanger to replace the pump & while off was told it was a good idea to rebuild the HE with new o-rings, seals & thermostats. In a perfect world the core is supposed to slide out for cleaning & installation of new o-rings at either end to form the seals between the raw water & coolant. The core is copper & the casting is aluminum I think, itís not steel. Iíve been told to be very gentle with the copper core so I donít have to drop a boat dollar for a new one.
The core is straight at one end & flared at the other thus it only moves one way.
What Iíve done so far is soaked everything in vinegar to loosen any corrosion, gently tap the straight end & heat with a gun & gently tap., So far no movement.
Anyone had a creditable idea to loosen the core from the casting?
HEY JUDE, a 1986 Kadey Krogen 36 Manatee, after spending 13 yrs on Lake Travis has been moved to the TX Gulf coast.