ford v10 smokes

[lvjim]

I just bought a 2000 winnebago with a v10. it smokes if it sits and idles but clears if idle is raised to 2500rpms or driven hard for three blocks. Any ideas?

[Wanabee FTer]

Hi lvjim and Welcome to irv2!

What color is the smoke?

White (steam) would be normal under certain conditions, mostly when cold.
Greyish white is oil burning.
Black is an over rich condition.

[lvjim]

blueish white, its oil but cant decide if its an engine rebuild or something that is common and easy fix with the v10. I changed the pcv valve and changed the oil.

thank you for any help

[Wanabee FTer]

If your lucky it's just a stuck ring that may free up with an oil change/additive (such as seafoam) and put a few miles on it. If not so lucky the engine may have been overheated and needs replacement or rebuild.
I am not aware of any known issues with oil burning on the V-10.

I am not an expert on this engine but this question might best be answered if reposted to the Ford chassis forum.

[lllkrob]

How many miles on it?

[lvjim]

47,000 miles. It sat alot, I found out that their is an oil catch can that can be installed to filter out oil getting into the intake.
I think i will try it before I pull the motor for rebuild

[whem2fish]

could be a valve guide(letting oil go down valve stem) do a compresion check first

[She and I]

Sounds like valve stem seals.....

[burmashave]

sounds like rings and/or valves

sorry but that's probably the problem

[Topflite51]

Miles on engine?

Blue smoke is oil burn. Possible causes pcv, bad rings, bad valve stem seals. Since you have replaced pcv and did engine flush, might try different weight/brand of oil. Have you noticed any smoke on deceleration ?

Forgot to say, unless smoke is excessive drive it for awhile.

[whem2fish]

ezactly dont know on the v-10 but we called them umbrelas if the motor gets hot they get hard then crack

[1desertfanny]

My gosh. you guys have done all the research for me!!! Thanks for all the great info. My hubby and I had already decided that the trailer needs to be driven before dumping. We were also given the heads up by a vetern RVer about emptying your water lines. Open the lowest drain point, leave the caps off and drive down the road. All the water jiggles out and you don't need antifreeze. Yey!!!

[Wanabee FTer]

If this were my vehicle I would add 1 can of seafoam and drive it 500 miles before doing anything else. If the oil rings are dirty/stuck it might just fix it.

[pkunk1]

Quote:

Originally Posted by lvjim I just bought a 2000 winnebago with a v10. it smokes if it sits and idles but clears if idle is raised to 2500rpms or driven hard for three blocks. Any ideas?

I second the Seafoam, but if the engine doesn't burn excessive amounts of oil in normal every day driving, I wouldn't worry about it. Mine, with 62k, will use about a half quart in 3-4k and I'll notice a little smoke now and then. It runs good and doesn't foul plugs so I figure it's normal.