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Old 12-21-2012, 05:04 AM   #2
RETed
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With the emissions hoses, you gotta be careful...
Anything that has oil (vapor) or gasoline vapor will make short order of regular "vacuum hose" and / or silicone vacuum hose.
In a pinch, I recommend using "carburetor fuel hose," which is cheap and easy to get from any car parts store.
At least the carb fuel hose is rated to handle petroluem liquids and vapors.
Almost any vacuum hose 6mm or 1/4" I.D. under the hood is going to have either oil "crankcase" vapors or gasoline vapors from the gas tank.

I concur that it's normal for the oil filter to get that hot.
For most humans, when temp start to edge over 100F, you tend to pull your hand away.
Pain threshold is around 120F - 130F?
I think 2nd degree burns start about that temps too.
Normal oil temps are 190F - 200F, so this is easily over the burn / pain threshold.
Coolant temps will beat oil temps to the thermostat setting, but the oil temps will tend to equalize faster throughout the engine due to 1) having a smaller heat exchanger - i.e. oil cooler, and 2) oil paths are concentrated around the hottest parts of the engine.
Once oil temps are at it's normal operating temperatures, it takes a long time for that temp to come down, especially versus coolant temps.

As for the MBC and boost sensor related issues...
I got a quick&dirty test for you, but with the engine being hurt, we might wait till after the rebuild?
You can isolate if it's a boost related issue by disconnecting the electrical connector from the boost sensor.
Try to minimize running the engine into heavy boost at any one single time, but running in and out of boost just across the "0" threshold should be safe.
If the hiccup goes away, it's a boost or boost sensor related issue.
If the hiccup is still there, look else where...


-Ted
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