help/advice needed for peugeot boxer (1 Viewer)

[judithh]

hi. please does anyone have experience or advice to offer re heater plugs that have seized in our peugeot boxer motorhome? The plugs are fitted horizontally so no oil can be dropped in. Any suggestions will be much appreciated, judith

 

[buckby]

Try and run the engine to warm the head then spray with gt85 or wd40 leave for a while then use a good fitting spanner or socket should come out I have had some very tight ones before put a little bit of copper grease on the new ones whennyou put them in if you can't start the engine because of the heater plugs use a bit of easy start down the air inlet

 

[simbadog]

Yep, they often won't come out when cold but do when engine is at operating temp.
Be careful not to snap it off, they are not very strong!