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TOPIC: Look what followed me home last weekend... '81 IT175H

Look what followed me home last weekend... '81 IT175H 22 Feb 2019 17:28 #51

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MarkT wrote: Nice work! :OnFire


Thanks Mark!

Basically I'm going through all the systems to inspect and replace anything that's necessary. I need to get a break in the weather to finish painting the frame, then I can start some assembly. I'm waiting on a few items so I can finish the bottom end seals and for the top end from EN. The shock is out for rebuilding and that'll be 2-3 weeks.

And cleaning, cleaning, cleaning...I think i'm on my 6th can of contact cleaner! Not to mention mineral spirits, purple degreaser, WD40, brake cleaner, carb cleaner, dishwashing liquid...

Onward and upward :Excited

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Look what followed me home last weekend... '81 IT175H 23 Feb 2019 09:05 #52

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I just love seeing motorcycles being put back to life, great work! Yay2

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Thanks Mark
Roseville, Ca.

'76 Bultaco 143 Frontera
'06 GL1800
07 DL650
74 DT360
75 Norton
73 CB500K
63 C200
87 PW50
64 McClane Edger

Look what followed me home last weekend... '81 IT175H 23 Feb 2019 10:27 #53

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Very nice, great work! I like the idea with the o-ring to replace the felt seal.:likey

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71 Z50 Minitrail
72 RT2
74 250A
78 XT500E
06 F650GS Dakar
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Look what followed me home last weekend... '81 IT175H 23 Feb 2019 13:08 #54

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Thanks guys!

Got a short break in the weather, one day in the 60's anyway, so I took advantage to get a couple more things done.

Knocked down the paint on the frame with a 3m Scotch Brite pad and spot treated any small surface rust areas with naval jelly.



May be a while still before I can get a coat of paint on it, supposed to be nice mid next week...

onward...
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Last Edit: by RT360Fan.

Look what followed me home last weekend... '81 IT175H 23 Feb 2019 13:26 #55

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Also, I decided to turn my attention to the swingarm mounted mud guard. It has a hole/groove in it, probably from the chain at some point, and the mounting 'boss' is badly cracked. This part is NLA and ones on eBay are expensive and for the most part, in worse shape than this one. So try and fix it I will. Now, I'm no bodywork guy, and I admit I wasn't quite sure how to tackle this but here is what I've come up with...

Decided to start with the easy part, the hole/groove in the side. This area is relatively flat and I decided to use some JB Weld Plastic Weld in tandem with a piece of fiberglass cloth for reinforcement.

Here's the part...




Close up of the hole from the outside



Close up of the hole/groove on the inside



Closeup of the 'boss' area
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Look what followed me home last weekend... '81 IT175H 23 Feb 2019 13:36 #56

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So cleaned up the area with some 150 grit sandpaper and acetone. I laid a piece of parchment paper (to act as a release substrate) on the outside over the hole held on with a piece of blue painters tape. Over that I laid a relatively stiff piece of card stock, again with tape over the whole affair.


Heres how it looks on the outside



From the inside, you can see the parchment paper backing


On the inside, I cut a piece of fiberglass cloth to lay in the cut. I mixed up the JB Weld and brushed a thin coat inside and around the edges of the cut, then lad the cloth down inside, pressing gently, then 'filled' in on top on the fiberglass.

Here's how it looked


This product has a 15min working time and a 30min set time. Plenty of time to work with on this project.

Continued...
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Look what followed me home last weekend... '81 IT175H 23 Feb 2019 13:50 #57

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So after about an hour of curing I removed the backing. Looks like it worked great. I went at the backside with some #150 sandpaper to knock down the high spots and try and feather the edges a bit.

And here we are so far...








Initial impressions is that the repair seems very strong. I'll let it cure overnight and do a bit more sanding, but no-one is even gonna see this once the rear drive train is on.

Next is the far more complex 'boss' area :Ugh
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Look what followed me home last weekend... '81 IT175H 23 Feb 2019 16:20 #58

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Let us know the long term test on the fiber glass on plastic, basically if it stays on.

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Thanks Mark
Roseville, Ca.

'76 Bultaco 143 Frontera
'06 GL1800
07 DL650
74 DT360
75 Norton
73 CB500K
63 C200
87 PW50
64 McClane Edger

Look what followed me home last weekend... '81 IT175H 23 Feb 2019 17:11 #59

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mdscott wrote: Let us know the long term test on the fiber glass on plastic, basically if it stays on.


Yeah, I'm wondering too. I may end up running without it anyway. But for $5 and 20 min worth of effort I won't be out much if it doesn't work out.

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Look what followed me home last weekend... '81 IT175H 01 Mar 2019 09:07 #60

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Seals and gaskets came in so I got some work done on the bottom end



See anything wrong with this pic? Wow



Stator is crusty but wiring/coils are intact and in solid shape



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