| Author |
Message |
pete hyser (4501pete)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, November 27, 2004 - 6:29 pm: | |
After trying to secure all oil leaks out of the detroit I had one line that is blowing more oil out then the other side. These are blow back tubes front right and left.
how much is exceptable and should i just funnel them out to a container?
pete |
Geoff (Geoff)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, November 27, 2004 - 8:23 pm: | |
They are called "air box drain tubes" and with your 8V71 you should have very little oil coming out. Your engine in the Scenicrusier sits level so if you have more oil coming out one side than the other I suspect you have broken oil control rings on that side. Does your engine smoke white when it is cold, and/or is it hard to start in colder weather? These things would indicate a worn engine besides the oil out the drain tubes problem.
--Geoff
'82 RTS CA |
pete hyser (4501pete)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, November 28, 2004 - 2:18 pm: | |
hard to start when its cold..and smokes alittle upon start...but with a deisel additive in the tank, there is no smoke and it runs like my powerstroke..
pete |
marc schlabach
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, November 29, 2004 - 9:39 pm: | |
My 871 blows out both sides but it runs great otherwise. I hate to spend thousands on an overhaul but I know I will have to sooner or later. I hate the oil dripping all the time. |
Stan
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, November 30, 2004 - 8:26 am: | |
If you are happy with the engine performance, make a container to catch the oil from the drip tubes. Comparing the cost of the oil that drips to the cost of an engine rebuild you are probably good for more than 100,000 miles. Not many people put more miles than that on their conversion.
If you are planning on high mileage with top performance and good fuel economy, you need a modern engine. |
Stan
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, November 30, 2004 - 8:34 am: | |
One further note on windbox drains. At some point in their manufacturing history, GM started to install a valve in the drain tube. When the engine is stopped or at low idle the valve is open. When the engine speeds up to a higher windbox pressure, the valve closes. There should be no leakage when driving down the road. Any oil that gets into the windbox when the valves are closed just becomes fuel. It is the same idea as the PCV valve on a gasoline car engine.
The valves are a GM part and come with mounting instructions. |