Stupid Newbie Cracks His 550 Oil Pan

The Wheel

New Member
Bought my first bike this winter, a 1977 CB550F. Finally got my motorcycle license and before I ride I decide to change the oil. No problem everything looks good and I take it for its first ride. Today I notice some leakage from the crankcase drain plug. The bolt must need a little more tightening right? Grab my torque wrench set it to 20 ft-lb. and BAM the whole side of the plug rips off and oil is pouring out of the hole. So yeah now I'm looking for a replacement oil pan. The part# appears to be part# 11210-323-000. Here's a few pictures of the damage. Feeling like a complete idiot, but I want to get this bike on the road so bad! I'm assuming this part is busted and I need a new one. Can this be salvaged? Anybody know if other oil pans will fit? Trying to tell myself this is part of the learning process, but Holy $hit does this piss me off.
30ihoiv.jpg
nf5f1z.jpg
 
there are several on eBay for around $25.

you'll want to get a new crush washer for the drain bolt, too. :)
 
Yeah I'm pretty sure that was my problem. Looks like the previous owner lost it the last time the oil was changed. Same for the oil filter. Well now I will always remember to put a crush washer on. Damn.
 
Don't feel bad. Back when I was a newbie I cracked a couple heat fins off my head trying to beat it off, only to realize I had missed two head bolts.
 
Grabbed a pan on EBay for $15 and a new crush washer and gasket from bike bandits. Hopefully I'll be able to get it done this weekend. Definitely will make sure all my bolts are out. How much torque do you guys suggest?
 
Not much - 6-7 pounds. These are just 6mm bolts holding the pan on - you don't need much. Spray the gasket both sides with red gasket adhesive - helps seal and also I believe makes removal in the future easier.

Honestly I've never used a torque wrench on an oil pan. Tight is tight. Use a short wrench to tighten them, criss-cross across the pan tightening the bolts to do it evenly. You don't need to reef on them. Same as the oil plug bolt with the copper washer - just tighten it down with a wrench - not a long socket wrench - just a normal box wrench.
 
Tim said:
Not much - 6-7 pounds. These are just 6mm bolts holding the pan on - you don't need much. Spray the gasket both sides with red gasket adhesive - helps seal and also I believe makes removal in the future easier.

Honestly I've never used a torque wrench on an oil pan. Tight is tight. Use a short wrench to tighten them, criss-cross across the pan tightening the bolts to do it evenly. You don't need to reef on them. Same as the oil plug bolt with the copper washer - just tighten it down with a wrench - not a long socket wrench - just a normal box wrench.

+1
 
Awesome. I have a lot of experience working with bicycles and never used a torque wrench until I bought one for this bike. Sometimes it's better to just go with your gut I guess. Thanks for the help!
 
Tim said:
Not much - 6-7 pounds. These are just 6mm bolts holding the pan on - you don't need much. Spray the gasket both sides with red gasket adhesive - helps seal and also I believe makes removal in the future easier.

Honestly I've never used a torque wrench on an oil pan. Tight is tight. Use a short wrench to tighten them, criss-cross across the pan tightening the bolts to do it evenly. You don't need to reef on them. Same as the oil plug bolt with the copper washer - just tighten it down with a wrench - not a long socket wrench - just a normal box wrench.

+1 again. Tighten it like you would a sparkplug.
 
Rich Ard said:
+1 again. Tighten it like you would a sparkplug.

Don't tell that to whoever owned my KZ440 previously ::) ;D .... left cyl plug threads were basically stripped clean out
 
^ Some jackwagons think a spark plug has to be "DAMN TIGHT"!
Glad you found an oil pan, here is a little "Old Wrench" to "Noob" advice whn working with aluminum...
Learn to use your ratchet differently... what I call "Palm tight". Grab the head of your ratchet in your palm, not the handle. Let the handle run out between your thumb and index finger. You get enough leverage to tigten fasterners but not enough to strip or break shit. It'll start to feel natural after a while and actually becomes second nature. I have to conciously move my hand out to the handle to actually torque on bolts when needed. ;)
 
Back
Top Bottom