Oil cooler return to block line has leak at fitting / 99 RT

flhfxd · Sep 3, 2020

Need to disconnect the cooler return line at the lower left side of the block and replace the 2 crush washers to see if this is my fix. Pretty sure these got butchered and are cause of leak. Approximately how much oil will drain out as I disconnect the banjo bolt, clean up the area, replace with 2 new crush washers and re-torque to spec? Is it just the quantity in the line? Thx

pglaves · Sep 3, 2020

flhfxd said:
Need to disconnect the cooler return line at the lower left side of the block and replace the 2 crush washers to see if this is my fix. Pretty sure these got butchered and are cause of leak. Approximately how much oil will drain out as I disconnect the banjo bolt, clean up the area, replace with 2 new crush washers and re-torque to spec? Is it just the quantity in the line? Thx

I am not positive but believe that the oil that will drain out is what is in that line and the oil cooler. So I'm guessing maybe 500cc or so.

gsaddict · Sep 4, 2020

It will drain out of the block as well.
Either lay the bike on its side on the lawn or drain the crankcase into a clean container to reuse.

dieselyoda · Sep 4, 2020

I heard of a trick, don't know if it works but if it did, your problem solved!

I have a customer that had the engine oil temp sensor on his machine start leaking and significantly after an oil change. He said that he duct taped a shop-vac to the oil fill and plugged the road draft tube, turned the vacuum on and removed the sensor and replaced it. He swears that the shop-vac held all 10 gallons of oil!

Could work????

Oil cooler return to block line has leak at fitting / 99 RT

flhfxd

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