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.



3 Answers

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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.



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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.

Posted on Sep 06, 2009

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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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Timing Chain & Gears Removal & Installation To Remove:
NOTE: Keep the cam chain away from magnetic fields.
Crankshaft set at TDC marks hnda_trk_crv_crank_tdc_marks.gif

  1. Turn the crankshaft pulley so its Top Dead Center (TDC) mark (1) lines up with the pointer (2).
  2. Raise and support the vehicle.
  3. Remove the front tires/wheels. Front undercar splash shield hnda_trk_crv_frt_under_splsh_shld.gif

  4. Remove the front undercar splash shield.
  5. Remove the drive belt.
  6. Remove the cylinder head cover (See section on Valve Cover).
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  8. Disconnect the Crankshaft Position (CKP) sensor connector (1) and Variable Valve Timing Control (VTC) oil control solenoid valve connector (2).
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  10. Support the engine with a jack and wood block under the oil pan. Ground cable and upper bracket removal hnda_trk_crv_grnd_cbl_uppr_brckt_rem.gif

  11. Remove the ground cable (1), and remove the upper bracket (2). Side engine mount bracket removal hnda_trk_crv_side_eng_mount_brckt_rem.gif

  12. Remove the side engine mount bracket. Timing chain cover removal hnda_trk_crv_timng_chain_cov_rem.gif

  13. Remove the timing chain cover bolts both from the front to the block and from the bottom to the oil pan.
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  15. Loosely install the crankshaft pulley. Compress the timing chain auto-tensioner hnda_trk_crv_compr_tim_chain_auto_tensnr.gif

  16. Turn the crankshaft counterclockwise to compress the auto-tensioner. Lock the timing chain auto-tensioner hnda_trk_crv_lock_tim_chain_auto_tensnr.gif

  17. Align the holes on the lock (1) and the auto tensioner (2), and then insert a 0.06 inch (1.5 mm) diameter pin (3) into the holes.
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  19. Remove the auto-tensioner. Removal of the timing chain guide B hnda_trk_crv_rem_tim_chain_guide.gif

  20. Remove the cam chain guide B. Removal of the timing chain guide A hnda_trk_crv_rem_tim_chain_guidea.gif

  21. Remove the cam chain guide A (1) and tensioner arm (2).
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