Question about 1979 Honda CBX

3 Answers

Leaking oil from the front of the motor. i have no manual ,i think its the cam chain tensioner

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  • dunc3700 Sep 05, 2009

    its actually an adjustment screw it leaks from,in the middle an just below the cams.

  • dunc3700 Sep 05, 2009

    cool ,is there any kind of adjustment to the screw,should i mark it so i know how many turns.

    is this a specality washer or outoparts type will work.

  • dunc3700 Sep 05, 2009

    worn out seal ,now i remember when i was at the honda dealer in calgary they could not get the seal for me.on the hunt for a seal.Thanks again.

  • dunc3700 Sep 06, 2009

    It was leaking from the bolt an nut that looks like an adjustment screw.The seal apears to be worn out ,i need to get another seal.

    Thanks for neverything this is my first time using this online stuff an i like it.but i did down load a manual.I have been searching for quite some time in canada for a manual,alot of dead ends.

    thanks again.

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  • Honda Master
  • 2,359 Answers

Re: Honda CBX1000


The front telescopic fork seal can leak. After the seal dry out,small amount of oil will leak. Get someone to spot you,compress the fork and listen for noise when it's rebounding.


The only time tested method to pin point an oil leak is by doing a fluorescent motor oil dye test.

Wipe down the head gasket area,engine seal area before the dye test.

Use the UV light and look for the source of the oil leak.


I would change the oil as soon as possible to prevent dyed oil from marking up the garage floor.


A shop can charge up to $100/hr just for labor. A complete dye kit is about $50.


Locate the oil leak like a professional. Get a dye test kit and locate the leak yourself.



Posted on Sep 07, 2009

  • Vincent_G
    Vincent_G Sep 19, 2009

    Please stop guessing and buy an oil dye kit like suggest it on my original post.

    Under $50 can save hours of guess work.

    Oil can leak from multiple spots,catch them all with just one dye test.


    DO WHAT THE PROFESSIONAL DO.



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  • Master
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First it need to find exactly where is the oil leak

Clean and dry the area really well: You can go to autoparts store to buy engine cleaner to clean off all oil from the head, fins, then cover with talcum powder. Fire it up and the white powder will discolor where it becomes moistened by the oil.
Most likely, the oil leak is coming from the oil gallery up through the cylinder block to the valvegear.Probably your head and/or cylinder block are a bit off flat as it aged, then oil slipped through.
1-Have the head resurfaced. It is cheap and relatively easy.
2- Replace all base, head gasket, and orifice valve seals.
Here is the link to download the manual.

http://www.tradebit.com/filedetail.php/6500367-service-manual-honda-cbx-1050-1979-1980-download

Posted on Sep 06, 2009

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  • Master
  • 1,167 Answers

Leaking oil from the front is this the barrel or bottom end or the exhaust which ever one it is it is only one thing the gasket/seals

Posted on Sep 05, 2009

  • ollie reece-jones
    ollie reece-jones Sep 05, 2009

    hi buddy take it out remove the old seal and replace with a new one it will either be a washer or a o ringok buddy

  • ollie reece-jones
    ollie reece-jones Sep 05, 2009

    yes buddy mark it i forgot too add sorry and also the type off washer depends on what it is normally there just a normal nut and bolt washer or there copper just take it to a garage and get one buddy

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