Oil Leak both cylinders - 03 1800R - VTXOA
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post #1 of 7 (permalink) Old 06-25-2019, 12:13 PM Thread Starter
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Oil Leak both cylinders - 03 1800R

The rear cylinder leak showed up last summer. I've seen this one many times here on other peoples bikes. Now, I have a similar leak on the front cylinder that showed up recently. Both leaks are very small, the rear one will eventually drip down on the left side chrome case cover and mess up a good polish job. What is the most likely cause and how difficult to fix ?

Front Cylinder Leak

Rear Cylinder Leak

2003 VTX 1800R3
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post #2 of 7 (permalink) Old 06-25-2019, 01:44 PM
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Camshaft plug in the head??? Clean and apply RTV around plug or pull out and replace.
Lost its elasticity. My o-rings over the exhaust valve leaked more than my camshaft plugs on my 1300.

Clean and examine the head to see where oil is coming from with spark plug cover removed.

2005 1300c Red, Mustang seat, HK 2.5 straights. Leds for safety-front & back. 192,235 VTX miles
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post #3 of 7 (permalink) Old 06-25-2019, 04:03 PM
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Take the spark plug covers off and see if it's not from loose plugs. Seen this before and the pics show it is higher than the head seal split.
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post #4 of 7 (permalink) Old 06-25-2019, 04:21 PM
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Loose spark plugs; probably as Spike says.

Clean the area; there is a torque number for used plugs, someone will know what that is.
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post #5 of 7 (permalink) Old 06-25-2019, 05:13 PM Thread Starter
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Thanks for the reply's everyone, I will pull the spark plug covers and see whats up. I ordered 4 new tappet cover O-rings as well.
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2003 VTX 1800R3
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post #6 of 7 (permalink) Old 06-30-2019, 08:08 PM Thread Starter
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Quote:
Originally Posted by Chicago-Spike View Post
Take the spark plug covers off and see if it's not from loose plugs. Seen this before and the pics show it is higher than the head seal split.
You were right Spike. I pulled the chrome spark plug covers off today and sure enough, the trail of soot is coming straight from the spark plug wells on both leaks. I pulled the plugs and the two that were leaking were not loose, but not snug like the other two either. I didn't have a torque wrench when I put them in a few years back and must have stayed too far on the safe side when tightening. Those two were pretty fouled so instead of cleaning them I bought all 4 new Autolite XP3923 Iridium Spark Plugs, put on some anti-seize and torqued them to 13 ft⋅lbf which is tighter than I thought it would be. Bareasschoppers shows the spark plug torque spec to be 13 ft⋅lbf so I should be good. Rode it about 100 miles today and no sign of seepage so far and is running better too.

2003 VTX 1800R3

Last edited by pushrod; 06-30-2019 at 08:13 PM.
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post #7 of 7 (permalink) Old 06-30-2019, 08:47 PM
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Glad I could help and that the fix was cheap and easy

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