Decided to put the fastman ported throttle body I had made for my jeep on Skye's while mine is at the shop to see what it would do (also added a CMR Tune), after removing the OEM throttle body look what was on the back side of the blade even worse than oil on the throttle blade look at the back of the manifold its Lake Oil Field all that oil just sitting there inside the manifold serves no use or any benefit what a poor design. Cleaned it up the best I could and I'm just one hose short of having a complete catch can for Skyes jeep need to do it ASAP while it is clean in there
Very easy to remove your stock throttle body and clean in there. With a deep 10mm socket all you have to do is remove 4 bolts and the eletrical connection that operates the throttle blade and 10 minutes later its off. I just took my window scrubber handle and removed the scrubber end and wraped a towel around it and zip tied it down, douced it with some Mopar throttle body cleaner and basically mopped the inside of the manifold.
Yes, the catch can will eliminate the blow by. You should get one as all the 6.1's have this blow by issue.
well hate to burst ur bubble but the catch can does not elimanate all of it. i have had my catch can for about a yr and yes it does work great but i just added a ported tb and ported mannifold from stu and there was still oit in the mannifold. would hate to see how much would have been in there if i didnt have the catch can.
i am assuming your catch can is set up where the stock pcv hose vents back into the top of the manifold above the tb. i have been running a can almost since they first came out and i have next to zero oil in my manifold. i am quite confident in this due to the fact i have had the manifold off several times over the past couple of years!!! lol
dayum, i'm going to check mine tonight. i havn't had my catch can very long, so i know there's shit in there. oh, something to do...
Burst my bubble? Lol No sir. Guess I did use poor word choice. lol I have zero oil in my TB or intake. Been running my can since BT offered them.
How many miles before you installed the catch can? If Wade hadn't cleaned his I wonder how long it would have taken for that to evaporate/burn off or turn into a solid?
Anyone no where the oil that sits on top of the valves comes from? I've seen it on numerous cars, even brand new ones with only a few hundred miles. Pull the intake off and almost every valve has a teaspoon of oil just sitting right on top of the intake valve. Intake runners are all wet with oil.
Shit. I've had my catch can on my Charger since my 426 build. But I don't have one on my Jeep yet. Guess I need to make it a priority after seeing this!!!
After I installed my BT TB .. I saw some oil on the back of the stock TB's blade which I cleaned off and the manifold "port" but didnt look inside ... WTF .. I have 58k on my clock and just got a BT CC 2 weeks ago .. things to do list for the weekend ... clean shitload of oil in intake manifold .. install catch can.. check weekly!
Well... figure at least 20 ml per 1000 miles. that'd be about 1.2 quarts. but don't worry, I'm sure you've burned some of it off
blow by what the rings? I'm talking about cars that have catch cans and or no PCV system to begin with. I first thought it was an engine prob cuz I was seeing it on strokers but I've seen it on cars with and without catch cans and with and without any PCV. Replaced valve stem seals and same issue so theres only one place, the rings I guess. Leakdown test shows good and doesn't really show oil usage but guarantee if you pull the intake off there will be oil sitting on the valves and the intake runners are wet with oil. I'm stumped as to why :search:
well i bought mine used with 12000 on it so no can there and i probally put another 5-10 on it before can was installed. at most i empty it every other oil change. when i changed my tb out there was no oil on the blade at all. but this past weekend when i changed out the mannifold there was oil in it. i just figure that the can catches most of it and the low weight of the oil allows some blow by. and yes i do have it installed correctly. not knocking the can, love the can, just dont want someone to think it will totally get rid of that problem. unless something is wrong with mine???? hmmmmm
I know this isn't going to be a popular post, but... A little oil in the intake stream is actually a GOOD thing. It lubricates the interface between the intake valve and seat. Making that interface totally dry "can" cause abnormal wear on the seat, valve, or both. Under high cylinder pressures, the valve can actually act like an oil can...which leads to sliding between the valve and seat. Keep in mind that any durability tests at Chrysler would have been done with the factory PCV system. They would have "accepted" or "rejected" any valve recession with this type of system. Now, I'm not saying that those who put on the catch cans are going to get immediate valve wear or that it will be a problem...even in the long haul. All I'm saying is that a little lubrication is actually good for that joint. It may be robust enough that it doesn't need the extra lubrication...only the engineers at Chrysler will know that. The other thing we don't know is how much the valve "oil cans". It may be none at all. It could be possible that with the oil removed the valve/seat wear is unaffected...possible, but highly unlikely. Too much oil isn't good either...as you can start getting carbon packing in areas that you don't want it. Then, the carbon packing can itself cause wear...depending on where it is...top ring land...for example. I don't know what the optimum amount of lubrication would be...again a good question for the Chrysler engineers...based on their durability test results. FYI...a similar argument can be made on valve stem seal leakage. Too dry can actually be very bad. Anywho...not trying to start a big debate. I'm just offering up some information where I do have some experience...albeit on a different engine platform. Keith
