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03 tc88 oil from air intake

Discussion in 'Motorcycle Tech Talk' started by wideglide03, Sep 23, 2011.

  1. wideglide03

    wideglide03 New Member

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    New to this forum and need advice.
    I have a 03 DWG stage 1 air cleaner (think hd) aftermarket pipes (modified baffles and torque cones) Cv jet kit. all else stock
    Riding yesterday 50 to 55 mph steady. Engine missed then major white smoke out of exhaust. stopped to look had oil pouring from the intake, I knew that I was a little overfull on oil and was getting blow by. I ran for a little longer and the smoke cleared, problem solved I thought. This was the start of our weekend ride so on the hwy we went 70 to 75 mph more smoke then lifter chatter. stopped to check oil 1 1/2 qt low. I talked with a mach. He said blow by, top it off and it will be fine. Did as he said and back on hwy, things were fine for about a mile then it looked like a forest fire was chasing me for about 2 miles, lifter chatter again (off and on sounds for about 20 miles) stopped for oil check 1 1/2 qt low again. Decided to call it and limped her home stopping every 20 to 30 miles to add oil.
    Talked to mach. today, he said the oil pump is bad.
    Could this be the problem or just one of them?
    I have rebuilt many auto motors but new to Harley. How hard is it to change the oil pump?
    Would I need all the special tools?
    Or should I leave the twin cam to pros.
  2. NAILIT

    NAILIT New Member

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    If it was 1-1/2 Qt low on oil at one point and the oil pump is bad I would be worried about engine damage...???
  3. cardboard

    cardboard Well-Known Member

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    Take it to a mechanic and have it checked.
    I would be concerned that you've got more problems.
  4. baggerpaul

    baggerpaul Well-Known Member

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    that makes no sense its using oil because of blow by and building crank case pressure do a compression and leak down test on the motor find out why its youseing oil then put a pump in if needed sounds more like a head gasket to me !!!!
  5. cardboard

    cardboard Well-Known Member

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    If you used that much Oil. Look around the heads like BaggerPaul said and look for oil that might of leaked.
    Then look at the intake and see if you got oil there.
    Then go look at the exhaust pipes and see where the oil came out the mufflers.
    If oil come out the mufflers I would be concerned of rings or more.
    I had a buddy with a 06 WG that ran over something and it bounced up and knocked a hole in the engine case.
    He had to fight it , but finally got the insurance company to fix it.

    If you see no oil Check Compression on the motor. This will show rings and valves being seated.
    But to use a quart and a half of oil over and over, you'd drown the folks behind you.
    It would be blowed all over the bike.:rant:
    I think you got more than we might realize.....
  6. wideglide03

    wideglide03 New Member

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    Thank u for the fast replies. There is no oil leaking from anywhere other than the intake. Oil is dripping out of the pipes as seen on the floor. Oil is sprayed from the timing cover to the license plate but no higher than the bottom of the battery box. All my test equipment is for autos and the adapters do not fit my bike I guess its a trip to the tool store for me. No one has a repair manual in stock so I have to order one. The plugs finally fouled about a mile from home, but the engine had no loss of power or broken part sounds before fouling. I could feel the oil starting to spray into the carb. It had a very slight hesitation then smoke. All my seat of the pants observations make no sense of how that much oil could be injected into the carb and still run like normal

    Attached Files:

  7. baggerpaul

    baggerpaul Well-Known Member

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    i think if he does a leak down then he will see if it is rings. but i have a feelling that he is building compresion in to the crank case. and the head gasget aint sealing proper allowing that to happen .
  8. baggerpaul

    baggerpaul Well-Known Member

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    dude you got bad breather umbrella seals thats whats wrong looking at the pics thats it
  9. wideglide03

    wideglide03 New Member

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    I will pull the rockers and take a look at the umbrella seals, is there any other advice on things to look for, ie. valve seals not seated, valve burn, etc.
    Never been in one before, I guess your not learning unless parts are puking all over the floor!!!:puke:

    I have read a lot of post on this problem but not as bad as this. 6 of us started out on this ride and all of us are pretty good mach. but it had all of us scratching our heads. It sucks to be at home and not on a weekend ride without the wives!!:gah:
  10. cowboy

    cowboy Moderator Staff Member

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    There's a flat oil breather right in the middle of the rockets both heads they might be dirty as well , the inside rag type is replaceable you can't miss them a bolt on each end
  11. wideglide03

    wideglide03 New Member

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    I found the umbrella valve!
    I know it comes apart but it is not being nice I am afraid I will break it.
    The umb. valve seems stiff, when I push the edge it does not snap back, it slowly returns to seal.
    Also there is a warp to it seen in the pic with me holding it. is this a prob?
    Note there is a good amount of oil in the rocker box (good I guess)

    Attached Files:

  12. baggerpaul

    baggerpaul Well-Known Member

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    it should be very soft and plyable if not it wont seal and let the oil return back threw the air cleaner in large amount . also if there is lots of oil up top that oil pump is pumping and also if pump was bad you wont have much in the air cleaner !!!!!!! twin cam dont make lots of pressure they make lots of volume . 7- 10 psi at idle hot 32 -36 high idle hot .
  13. baggerpaul

    baggerpaul Well-Known Member

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    :cool:p.s. when you instal the new ones they pull up tight `against the the umbrella valve housing. make sure you change the round breather packing as well looks like small sponge . dont over torque the rocker boxes and install all gaskets dry twin cams dont leak when they are put togther correctly. take your time and replace all the seals gaskets . in the kit you can buy them as a rocker box gasket kit at hd .talk at ya later hope we were able to help;)
  14. cowboy

    cowboy Moderator Staff Member

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    WG03 make sure you TQ to specs & in order if you don't have to service manual See if one of your buddies do
  15. wideglide03

    wideglide03 New Member

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    Thanks
    I will let you know how it goes. Going to the Hundred Dollar store tomarrow
  16. Tomflhrci98

    Tomflhrci98 Active Member

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    I don't own a twinkie but I'm still interested in hearing how this comes out.

    Let us know.

    Thanks
  17. cowboy

    cowboy Moderator Staff Member

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    The way the oil is dripping out the pipes , just might be more then that filter
  18. AnthonyMartello

    AnthonyMartello New Member

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    Hi,

    Generally alleged clouds of white smoke are from one of two things. Either the crankcase breather has failed or the oil is contaminated. As evaporation takes place it could show itself as white smoke from breather.
    I have seen breather pipes half full of this stuff (over here anyway). A good clean up and fresh oil in there is all it will need. Short runs in cold weather is the biggest culprit for causing this.

    Cheers!!
    Anthony
  19. Lucifer

    Lucifer Well-Known Member

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    Are they the plastic breather assemblies??If they are toss them and get the updated ones made of cast aluminum or stamped steel...I don't know if that's the whole problem,but it would be part of it,the warped one would leak...
    My '03 had a cast one on the rear and a plastic one on the front and my front head had a fair amount of oil going to the breather(why it had one of each is a mystery)Once I had the metal ones on front and rear I barely get any oil out of the breather...I also vented the breathers to the atmosphere instead of the intake...
  20. wideglide03

    wideglide03 New Member

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    They are Plastic and both of them are warped.
    I tried doing a search for (rocker box breather assembly)
    I am getting how to remove but no parts to buy. Is this what they are really called? I did notice that the pics. of them are metal. Does anyone have a ball park on price? (found them $12.99 at HD had to use part # they did not know what they are called either They are the new design metal units)
    I did get the rocker cover info on torque specs and order of install from one site.

    I also have another set of ?
    I was reading some post on oil pump issues and if the timing cover is removed and the engine is rolled oil will run out (sign of good pump) Is this true?
    If it is great (when I did this it shot oil out on my legs)
    After a good inspection with a flashlight around the timing chain and cams I found one of the inner tension pads is wore 1/2 off could not see any others on the inside. Is it possible to take the cams out as an assembly or does everything have to be removed?
    I also can see some scoring on the front cyl. rear cam lobe is this a sign of lifter roller bearing bad?

    Attached Files:

    Last edited: Sep 24, 2011

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