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-   -   Another kick at the cat, 71 CL 450 restoration (http://www.advrider.com/forums/showthread.php?t=721089)

anonny 08-30-2011 10:29 PM

Another kick at the cat, 71 CL 450 restoration
 
I have RTW02 to thank for giving me the "hot tip" on this one :evil Bought it from a nice couple in Kelowna who let me have it for a decent price for both parties, this is going to be a stock resto but not concours enough to break the bank.... a rider shall we say.

Let the fun begin.... caved in tank on this side, anyone have a spare getting in the way? :rofl
http://img683.imageshack.us/img683/4718/87104127.jpg



http://img638.imageshack.us/img638/1556/58127483.jpg

Luckily it's all there with relatively low mileage, but engine is seized :cry $

http://img31.imageshack.us/img31/5449/95684965.jpg

This better reflects the general overall condition.

http://img24.imageshack.us/img24/6184/64569007.jpg

Skowinski 08-31-2011 09:28 AM

Those old 450's are cool bikes. I was looking at one, the CB model, a while back, but the owner was just asking too much for it so I walked.

MacNoob 08-31-2011 11:38 AM

Awesome, I have your bike's little brother - pic is when we dragged it out from behind a shed:

http://www.mts.net/%7Ecorvair/CL175/cl175-2.jpg

anonny 08-31-2011 09:14 PM

Quote:

Originally Posted by MacNoob (Post 16754420)
Awesome, I have your bike's little brother -


What year is that, I notice the paint is the same but my has chrome fenders. Are you doing anything with it? wanna sell the tank :evil:rofl

Todays chore was to see why the engine was stuck, aaaha just as I expected

http://img10.imageshack.us/img10/5958/44016967.jpg

Top end doesn't look too bad

http://img109.imageshack.us/img109/2323/61587146.jpg

http://img825.imageshack.us/img825/8972/80893488.jpg

So after a few days soaking the cylinders were reluctant to come off.... time for some friendly persuasion

http://img28.imageshack.us/img28/4609/63473446.jpg

a flawless execution, took some leverage and tapping as the right piston was real bad
http://img651.imageshack.us/img651/6828/50199388.jpg

http://img36.imageshack.us/img36/7536/25720568.jpg

The helpless victim
http://img706.imageshack.us/img706/4758/81692056.jpg





The piston and cylinder fate will be determined with some measuring, anyone been able to reuse stuff that looked this trashed before?

MacNoob 08-31-2011 09:28 PM

Quote:

Originally Posted by anonny (Post 16758720)
What year is that, I notice the paint is the same but my has chrome fenders. Are you doing anything with it? wanna sell the tank :evil:rofl

It's a '71 CL175. ONE of your cylinders is bigger than both of mine together.... I don't think there would be too much parts commonality with your bike! But yes, the tank is in nice shape. I hope to just polish this thing up and not have to repaint much.

Make sure you come visit at www.hondatwins.net the source of all goodness for these bikes.

crazydrummerdude 08-31-2011 09:32 PM

Quote:

Originally Posted by anonny (Post 16758720)
anyone been able to reuse stuff that looked this trashed before?

Yep.

anonny 09-01-2011 09:33 PM

Rods don't look too bad
http://img846.imageshack.us/img846/3739/20364039.jpg

Piston rings stuck big time, notice the bent oil control ring. Now how do you get the seized rings out? For the first time I broke a ring trying to get it out, this was the "good" piston (read less seized) :D

http://img32.imageshack.us/img32/7548/29836862.jpg

As soon as I can free the rings a friend will do some measuring for me.

anonny 09-03-2011 04:18 PM

Anyone know how to remove the crank drive gear?

http://img593.imageshack.us/img593/2648/dscf0515w.jpg

bit of an odd design. :huh

briarpatch 09-04-2011 06:43 PM

It's been a long time since I tore down a CB/CL 450, but I believe you remove the inside snap ring and pull the cover out of the oil sludge trap. Inside is a nut (left hand thread?) removed by a special four pin socket after peening down a security washer. At any rate, pull that snap ring and cover and you can see inside. THANKS - Stan PS Those torsion bar valve springs were WAY cool for an everymans bike back then.

electroken 09-04-2011 07:50 PM

That's a pretty standard centrifugal oil filer design for the early Honda twins.

Once the snap ring is out, you can thread a long M6 screw into the inner half of the centrifugal filter to help pull it out. A 40 year old o-ring will be fighting you the whole way. Coming up with the special four-fingered tool to remove the filter nut from the crank will be the hard part. There should be a locking washer staked in place under the nut that will have to be flattened before the nut will come off.

anonny 09-04-2011 09:40 PM

You guys were right on the money, inside the centrifuge and no that is not my handy work
http://img62.imageshack.us/img62/1435/58705748.jpg

it gets better
http://img33.imageshack.us/img33/9341/85512561.jpg
oil drain bolt
http://img851.imageshack.us/img851/7595/84184577.jpg
and no again.... I cannot take credit for the alternative tool work.

But on the brighter side of things
Tranny looked good, bearings good... whew
http://img843.imageshack.us/img843/8990/38896186.jpg
Shift forks are decent
http://img38.imageshack.us/img38/1523/74034809.jpg

But the biggest prize is the crank looks good, bearings check out and I don't have to worry about sending it out and spending a ton o cash (I remember my Mach 3 costing $1000 for a crank rebuild)

http://img851.imageshack.us/img851/453/15125545.jpg

electroken 09-05-2011 06:33 AM

It appears that a previous owner had 3 tools in the tool box: Vise-grips, a punch, and a big-ass hammer.

AtLarge 09-05-2011 07:17 AM

Quote:

Originally Posted by electroken (Post 16786467)
It appears that a previous owner had 3 tools in the tool box: Vise-grips, a punch, and a big-ass hammer.

:roflAnd no skills or common sense.

Skowinski 09-05-2011 07:22 AM

Looks pretty typical of lots of the work I've seen on used bikes, unfortunately... :lol3

LasseNC 09-05-2011 12:20 PM

I'd say the small-ends look scored?


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