Thanks for the responses, I was off line due to a lightning strike frying our modem.
My Karcher washer has a detergent spray feature I can use to pre-wet areas, before using more forceful spray. I`m inclined to try that first,with some degreaser on hand too, accepting there will still be some manual cleaning. I need to look after my back and not provoke known issues and want to avoid contorted body positions.
The IG has ss trays under each engine and gearbox to catch any leaks,I don`t doubt the dirt has an oil component build up, but not as the main problem. There are also large lift out ER "roof" panels,so steam is a possibility if the Karcher attack doesn`t work out.
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BruceK
2005 Integrity 386 "Sojourn"
Sydney Australia
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