prevent sludge in 2.7 engine
prevent sludge in 2.7 engine
(OP)
I am getting an Intripid with a 2.7 liter engine.
I have not seen it yet but I will be going out today to take a look at it.
I read about the engines problem with oil sludge.
My question is: How can I stop the sludge from happening.
Additives? More oil changes? Hotter thermostat? Would a engine oil cooler help?
Thanks for any replies
I have not seen it yet but I will be going out today to take a look at it.
I read about the engines problem with oil sludge.
My question is: How can I stop the sludge from happening.
Additives? More oil changes? Hotter thermostat? Would a engine oil cooler help?
Thanks for any replies





RE: prevent sludge in 2.7 engine
2. Use synthetic oil.
3. Use propane fuel.
Mike Halloran
Pembroke Pines, FL, USA
RE: prevent sludge in 2.7 engine
Regards
eng-tips, by professional engineers for professional engineers
Please see FAQ731-376: Eng-Tips.com Forum Policies for tips on how to make the best use of Eng-Tips Fora.
RE: prevent sludge in 2.7 engine
RE: prevent sludge in 2.7 engine
RE: prevent sludge in 2.7 engine
Are you suggesting a bigger PCV valve or something more sophisticated like a vacuum pump, or something more illegal like a big open to atmosphere vent.
Regards
eng-tips, by professional engineers for professional engineers
Please see FAQ731-376: Eng-Tips.com Forum Policies for tips on how to make the best use of Eng-Tips Fora.
RE: prevent sludge in 2.7 engine
It has 162,000 KM on it and is in good condition.
Price was right (a gift)
I was looking for things I could watch for that are signs of it going to sludge up.
I am going to drive it
I live in a city so it will be stop and go.
I am not going to change it to propane.
I will change the oil regularly.
I will go to synthetic if that will solve the problem
I can monitor the PCV system closely.
It must be something that makes some of them last a long time and others to sludge up very early.
RE: prevent sludge in 2.7 engine
RE: prevent sludge in 2.7 engine
RE: prevent sludge in 2.7 engine
I guess a bigger aperture PCV would not be to illegal, at least in spirit and effect even if illegal in detail.
Regards
eng-tips, by professional engineers for professional engineers
Please see FAQ731-376: Eng-Tips.com Forum Policies for tips on how to make the best use of Eng-Tips Fora.
RE: prevent sludge in 2.7 engine
If I remember correctly, the timing chain tensioner is oil fed and the sludge problem contributes to that.
RE: prevent sludge in 2.7 engine
RE: prevent sludge in 2.7 engine
RE: prevent sludge in 2.7 engine
I would say that if you have doubts about the oil sludge on this car to do a similar flush and inspection on yours. The oil pan on that engine and chassis is readily accessable and could be removed and installed by most people with average mechanical apttitude and a normal socket set within four hours time. The front end will have to be high enough to work under safely. If you pay a mechanic the costs should be affordable and worth the piece of mind.
In any case your best defence is to run a pure synthetic oil with the highest viscosity possible. Look in your owners manual for the minimum wieght needed for your average temperature range and then find a synthetic that meets the minimum cold viscosity with the highest hot viscosity. A synthetic 5w-40 would probably be your best choice. Use that with regular changes at 3000 miles.
I wouldn't change any other parts such as PCV or thermostat from factory specifications. Do make sure they are all working properly.
Vernon
RE: prevent sludge in 2.7 engine
RE: prevent sludge in 2.7 engine
RE: prevent sludge in 2.7 engine
The inlet air vent is connected to the air intake ducting between the filter housing and the throttles. On these engines those hoses are known to get soft and collapse at the PCV and fresh air so make sure they are still stiff enough or get new ones from the dealer, they aren't very expensive and it beats trying to make straight hose fit right.
Vernon
RE: prevent sludge in 2.7 engine
I just want to know how to prevent it.
I just got the car back to day and I have to change the rear disks and power stearing belt.
I will change the oil tommorrow. I am going to put is 100 % synthetic (5 w 40 I think)
I will change the oil as per severe service intervals.
RE: prevent sludge in 2.7 engine