Cleaning Eberspacher

[Andrew_Fanner]

The Eb doesn't seem to shove out much heat at the moment, even with the thermostat on full. Don't have the manual to hand but is there a simple sooted up/clean something scenario that is likely to be at fault, or is the air that comes out of the system always only just a bit warmer than ambient? Its a D3 of uncertain age, starts just fine most of the time but its now the time of year when you actually want it to work properly.

 

[pvb]

Sounds like it might be running only at the low heat setting - this could be a control unit failure.

 

[temptress]

With an Eber it could be almost anything.

However in my experience low heat output (assuming the fan revs go down as well as up) then it probably needs a decoke and new glow plug plus gauze. You can do this yourself but needs the heater removing form the boat and stripping on a workbench to decoke. A new glow plus can be fitted in situ.

Check the manuals for details. If you don't have the manual you can get one HERE

Good luck

 

[damo]

Another thing some folks do is to give it a few hours running on paraffin, which it is claimed will do a good job of cleaning eberything out.

 

[Slipstream 34]

It could also be a poor fuel supply problem. Check the little thimble filter on the up stream side of the pump. You could try running it on paraffin for an hour or two, it burns much cleaner and should clean up the combustion chamber. I had a problems with it sooting up with red diesel and now run it from a seperate tank on paraffin, 2 seasons no problems....... yet !

 

[pcatterall]

As a rough check. You should not be able to hold your hand at 4" from the actual heater outlet for more than around 4 seconds.

 

[fluffc]

The heater is really a rather simple assembly. Remove it from the boat as previously mentioned, and disassemble until you can get into the combustion chamber. You'll need a high pressure air line and a long nozzle to get cleaning right inside.

My first season with an (second hand) eber I did this, and reassembled with re-using gaskets etc (albeit some were rather fragile). It transformed the heater heat output!

 

[Andrew_Fanner]

I think a strip down is called for this weekend. Thanks to all for the advice. HP airline might not be an option so soft and brass brushes will have to suffice.

 

[steve28]

check the filter in the fuel pump as well.

 

[bobgosling]

Try Maplins online for an aerosol can as used for cleaning computers