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Pressure washing [message #370703]

Sun, 16 October 2022 11:33

jhbridges

Messages: 8412
Registered: May 2011
Location: Braselton ga

Karma: -74

Senior Member

The underside of my coach is oiled and coated with crud from many miles behind a Jasper motor and then an oil line failure. I propose to pressure wash it, I wonder if there's anything else that should be protected besides the fuel pump and the tank selector. Thoughts?

--johnny

Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons. Braselton, Ga. I forgive them all, save those who hurt the dogs. They must answer to me in hell

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Re: Pressure washing [message #370704 is a reply to message #370703]

Sun, 16 October 2022 12:14

Larry

Messages: 2875
Registered: January 2004
Location: Menomonie, WI

Karma: 10

Senior Member

Well, living in the north where salting the roads in winter is common practice, I actually add oil in the form of ATF to the rear bogie section of the frame. In addition, after many attempts to stop a front main bearing seal leak, I finally gave in and let it be part of my anti-rust system. In my part of the country pressure washing the frame and undercarriage isn't really the best option. That oil down there really ain't hurting anything unless you get down on your belly and look at it.... Rolling Eyes

Just my off the wall look at it....

Larry

78 Royale w/500 Caddy
Menomonie, WI.

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Re: Pressure washing [message #370705 is a reply to message #370703]

Sun, 16 October 2022 20:37

lqqkatjon

Messages: 2324
Registered: October 2010
Location: St. Cloud, MN

Karma: 5

Senior Member

I dont think there is anything you would harm with normal pressure washing. Even the selector valve and pumps should be able to het wet.

Jon Roche 75 palm beach EBL EFI, manny headers, Micro Level, rebuilt most of coach now. St. Cloud, MN http://lqqkatjon.blogspot.com/

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Re: Pressure washing [message #370706 is a reply to message #370705]

Mon, 17 October 2022 08:55

Matt Colie

Messages: 8547
Registered: March 2007
Location: S.E. Michigan

Karma: 7

Senior Member

Johnny,

Depending on the power of the pressure washer...
As in if it is worth a tinkers damn, I would caution you to try to stay away from exposed seals. This would be the two on the sides of the final drive, The boots on the drive axles and the inboard seals where the axles go into the knuckles. The only other place there is risk would be if you have disc brakes in the rear. Those inboard seals could be breached by a high pressure. If you still have drums back there, you can't get to the seals.

At one time I owned a 1965 Jeep Gladiator. It was a relic and I still wanted to use it on the fender solvent roads of Michigan in the winter. I used to used an air powered washing sprayer to coat the underside with chainsaw bar oil (nasty sticky stuff). Last I heard, the family of the original owner still had it.

Have a good time.

Matt

Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit

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Re: Pressure washing [message #370707 is a reply to message #370706]

Mon, 17 October 2022 18:31

Jp Benson

Messages: 649
Registered: October 2011
Location: Fla

Karma: 2

Senior Member

Make it easy. Get some degreaser from HD or Lowes. Apply it with a hand pumped garden sprayer. Then a garden hose with a high velocity spray nozzle will probably do the job.

JPB

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Re: Pressure washing [message #370708 is a reply to message #370703]

Fri, 21 October 2022 07:54

MikeB

Messages: 133
Registered: December 2018
Location: South Bama

Karma: 1

Senior Member

I use Super Clean all the time on my vehicles and lawn equipment. It’s relatively inexpensive when purchased in gallon jugs. Is sold just about any auto parts store and removes dirt as well as grease and oil. It also doesn’t require a lot of pressure to wash off. It comes in a purple container. For the lighter dirt and grease you can spray the Super Clean with a pump sprayer let sit for around a minute then slide a fan type lawn sprinkler underneath the coach.

M Beam 75’ Avion TBI EBL , 3.70 LSD and other stuff Zuki Sidekick, Dozier Al

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