OK so I am new to the con rod issue, but slowly getting an education. What is the bottom line, I need to get my 82 250 XC on the trail again. It needs a crank overhaul and I am stuck on the con rod. What I have figured out:
I can get one from HVA-factory for a whole bunch of money
I can get one machined from Halls for around $350
A) Are there any other options?
B) What years and models are the same?
C) What makes them so obsolete?
D) Should I just not worry about this and fork up the $$
A)
Get a useable used crank
get an auto crank and get the longer pin new
get a used crank with the bolt for the ignition busted off and switch out your good crank piece
I could keep going but not as fast
get a used lower end
get a used engine
Get a crank with the correct rod and pin but for a different displacement study the parts sheets for same rod part number.
B) Pretty much all of the approx 82 250 have the same stroke up until 87 when it got longer. need verify for yourself For some strange reason I started out on a 500 because my friends went out west in 11,000 foot elevations, I tend to get multiples of what I have so not real knowledgable about the 250.
C) I won't answer this one the question makes a statement. I have bought some nice harley mirrors on stalks that were obseleted. That just means no longer for sale from Harley best as I know.
D) Yes you should worry. By the time a crank wears out the small gear on the back of the clutch is mostly worn way past whatever hardening there ever was. The hole the swingarm pivot goes into if not egged out will soon, etc.
To get a crank serviced one needs a reliable crank service to bring or send it to. It might be advisable to locate that first.
Auto cranks can have the drive taper fail. If the 85-86 crank will work a lot of those go down to engine case failure, more so than earlier ones. For me the choice was new crank $285 rod and pin kit available at the time $150*- then find and hire a shop. Some cranks were up into the $400's at the time.
Not sure if it is proper to jump on this thread or make a new one for this issue
Put a location
How many private message offers so far?
How to check a crank rod put crank in vice, put dial indicator against end of pin push and pull. so long as that timing side bearind didn't send chips into the mix should be pretty reliable.
Fran