Heat exchangers change
Posted: Sat Oct 24, 2015 3:33 pm
Well, I only actually changed one (passenger side).
Lurch being a long wheel base Haflinger fitted with the heat exchanger heating system developed a noise at the last Dersingham treffen and sounded like a beat up old VW - broken pipe going into the passenger side heat exchanger.
I had to disconnect the hot air pipe where it joins the flexible hose just under the cabin floor to prevent getting gassed on the way home.
Today was reasonable in terms of weather so I set about taking off the sump guard, Putting axle stands under the passenger side so I could remove the rear wheel. Gives you a bit more access room - which is terrible to start with.
In order to remove the heat exchanger you have to have a good tool kit. As the easiest way I found of undoing the two studs / nuts that actually hold the body of the heat exchanger to the brackets in the middle of the vehicle is to have a socket on a very long extension rod (preferably with a "wobble" end so you can turn it a bit off centre and approach the nuts from the opposite side of the vehicle.
Every thing is just that little bit more difficult to manoeuvre due the LWB deeper footwells and where the handbrake cable runs.
Getting the new (replacement from some other old Haflinger) heat exchanger back in to position and joining up the pipes took quite a while with a fair amount of thumping of things with a rubber mallet to get things to line up. Still all done now - might get round to doing the other side as that is likely to be is asimilar condition of rusting through.
John
Lurch being a long wheel base Haflinger fitted with the heat exchanger heating system developed a noise at the last Dersingham treffen and sounded like a beat up old VW - broken pipe going into the passenger side heat exchanger.
I had to disconnect the hot air pipe where it joins the flexible hose just under the cabin floor to prevent getting gassed on the way home.
Today was reasonable in terms of weather so I set about taking off the sump guard, Putting axle stands under the passenger side so I could remove the rear wheel. Gives you a bit more access room - which is terrible to start with.
In order to remove the heat exchanger you have to have a good tool kit. As the easiest way I found of undoing the two studs / nuts that actually hold the body of the heat exchanger to the brackets in the middle of the vehicle is to have a socket on a very long extension rod (preferably with a "wobble" end so you can turn it a bit off centre and approach the nuts from the opposite side of the vehicle.
Every thing is just that little bit more difficult to manoeuvre due the LWB deeper footwells and where the handbrake cable runs.
Getting the new (replacement from some other old Haflinger) heat exchanger back in to position and joining up the pipes took quite a while with a fair amount of thumping of things with a rubber mallet to get things to line up. Still all done now - might get round to doing the other side as that is likely to be is asimilar condition of rusting through.
John