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Old 03-12-2010, 12:51 PM   #46
Hondo OP
What if its a Samsquamch?
 
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Location: Denver, Colorado
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Quote:
Originally Posted by Yarddog
Here's a blasting suggestion for ya...in addition to having the equipment for agressive blasting that will remove paint and gork, AND give you a good surface to paint on, invest in a soda blaster...it's not as agressive, nor is it as invasive as the aluminum oxide or silica media...it will remove paint and gork, but it won't hurt your gaskets and rubber, and it breaks down easily if you spray it off with water...And here's the kicker for ya, OP...it's environmentally friendly!!!

I've used it to blast heads, cylinders, engines that have been sealed off and/or still together, and it won't eat your aluminum like aluminum oxide et all will...

As far as a blasting cabinet goes, just get a blasting hood and wear coveralls...and blast somewhere that is kinda away from things...I went out and bought one of those inexpensive Harbor Freight cabinets, and it's really been more of a pain in the ass than it should have been...It's hard to see inside of it, the blaster that came with it is junk, I rigged a Sears blaster to work with it, been one problem after another, to be honest...
I've read about soda, but it isn't good with some materials (or so I read).

I have been doing media blasting for many years. When I move into a larger garage/shop I will be investing in a dedicated cabinet and high volume compressor. What I did yesterday was what I had to work with.
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Old 03-12-2010, 01:36 PM   #47
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Day 10

I got started early today- I have to pick my kids up at 3 pm and wanted to get as much done as possible before then.

So I went out to the shop and got some parts ready for paint.

The starter cover and oil pan -



Oil filter housing -



Here is the cylinder taped up - top -



bottom -



After the cylinder dried enough to be moved I put it into the bottom of an old bottom box to cook for the next week -



I dragged the engine out into the sun to inspect it and remove the tape -

[img]

And here's the head -



I removed all of the bolts on each side of the engine (one at a time) and polished them up on the wire wheel -



As you can see I also installed a few shiny pieces.

I also painted and installed this support bracket -



I took a bunch of gunk covered parts (kickstand, vent reservoir, other ) and put them into the Pine Sol vat to soak.

And I put the airbox into a tub of hot soapy water to clean up -



I'll be finishing the airbox this afternoon, maybe do some other little stuff if I find the time.

Gotta get cleaned up & then get the kids!
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Old 03-12-2010, 07:15 PM   #48
Yarddog
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Yeah, you either like soda or ya don't, and I like it so far, just gotta blow things off and wash 'em with (shudder) solvent and carb choke cleaner to get 'em clean...This might be another use for Pinesol... washin' away baking soda...
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Old 03-13-2010, 09:05 PM   #49
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Day 11

I got up today and started off by removing the parts that had been soaking overnight in the Pine Sol vat & washed them off in the sink.

The auto petcock valve assy cleaned up nicely -



(And yes, I did take it apart to make sure that it was ok inside)

I went out to get some stuff at Performance Cycle in Denver and came home with this -



So getting the valves back into the head won't be an issue (I love having the right tools).

We picked up some paint while we were out and when I got back I started on the painting.

The kickstand before disassembly -



I took it apart and got it ready for paint, along with the other parts. Brake cleaner makes 'em as clean as possible. Some of the hardware -



And some parts drying off -



I took some picks of the cam chain tensioner parts -





This chain guide looks suspect -





I think I'll be replacing that guide.

I also painted the oil cooler -



Then we were off to the car wash to clean up the pipes.



I laid them on an old pair of jeans to protect the finish-



They were pretty nasty. Just wanted to get the mud off of them-



They look a lot better but will have to wiped down with laquer thinner to remove the baked on oil & road grime -



I took the pipes back to the shop and hung them up to dry and called it a day.

I'm off on a 5 day trip tomorrow, so all of the painted parts will have a good amount of time to have their paint set up.

More next weekend -
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Old 03-13-2010, 10:28 PM   #50
racer 07
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Thumb

Great thread. Thanks for takeing the time. I have a 1981 cb900 that I'll be doing later this year. This will be a big help. Racer07
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Old 03-14-2010, 07:43 AM   #51
Hondo OP
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Quote:
Originally Posted by racer 07
Great thread. Thanks for takeing the time. I have a 1981 cb900 that I'll be doing later this year. This will be a big help. Racer07
Document it here and at The DOHC Custom Forums -

http://www.cb750c.com/modules.php?name=Forums
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Hondo screwed with this post 03-15-2010 at 09:40 AM
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Old 03-16-2010, 11:30 PM   #52
Brad Felmey
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Quote:
Originally Posted by Hondo
I knew that was gonna come up.

I am trying Pine Sol on the recommendation of the folks at the DOHC Forums.

Seems to be working well in the soak. Won't damage the delicate parts, degreases great, and rises away easily.
I tried this, but I also put my pan on a hot plate set on very low (maybe kept the temp 95F or so).

Holy hell did it work well, and does not seem to damage nor swell the soft parts. Leaves that beautiful as-cast aluminum look.

Now part of me wants to put Pine-Sol in an ultrasonic cleaner.
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Old 03-17-2010, 11:13 AM   #53
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Yeah, the Pine So as a soak degreaser is pretty friggin' amazing-

Who woulda thunk?
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Old 03-17-2010, 12:11 PM   #54
Hondo OP
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A Pine Sol Degreaser Thread -

http://www.advrider.com/forums/showthread.php?t=560117
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Old 03-18-2010, 06:20 PM   #55
Hondo OP
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Day 12

I made a few stops on the way home from work and picked up some things -

A digital caliper, a UNI filter and and a Motion Pro bucket wrench -



I'll be using the No Toil system with the Uni. It comes with some stickers for the tool box -



For those that are not familiar with Uni filers, they are vastly superior at filtering dirt and also flow better than stock. The inside -



There are 2 ridges on the top alaowing the CB owner to use the standard air filter clip with filter -



I brought the buckets and shims inside to measure with the new caliper.

The underside of one of the shims -



The calipers measurement (sorry about the focus) -



And the worksheet (with some extra notes) pd750 designed -



I'm done for the night, but plan on getting up early tomorrow to lap the valves.
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Old 03-18-2010, 07:02 PM   #56
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Laugh best engine rebuild feature EVER on advrider

I must say this is the best thread that I've read in a long while regarding a bike build especially the detail of the engine disassembly .

My hats of to you .

I got a 1973 Suzuki GT-380 for free from afriend and want to make it into a cafè racer .It is when Iread thread like yours , my mind starts running with what I still have to do .

You atleast give me inspiration .Keep it up .
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Old 03-19-2010, 06:21 PM   #57
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Day 13

Yesterday's weather was a really nice 65 degrees & sunny and today I awoke to fresh snow and 30 F.

So I headed out to my local Honda dealer (RPM Honda, Lakewood, CO) to pick up a bunch of parts that I ordered.

It was pretty nasty out -



Some of the parts I picked up were for the oil pan & pickup, so I decided to install those items.

The prepped pan, clean and painted-



new gasket & o-ring- time for the pan -



After I got the pan installed I removed the oil drain bolt in order to install a new crush washer (the old one was rounding over the egdes of the bolt & needed replacing).

I had to put the bolt in the vice and drive the washer off with a drift. You can see how "smushed" it was -



Installed the crush washer and all was good on the bottom of the engine -



While I had the engine flipped I installed a new oil filter -



And with the housing installed -



Then I flipped the engine to install the starter. First I had to install the new boot that was missing -



The starter in it's home -



And the cover installed (I polished up the bolts before I installed them) -



I was running out of time so I did just a few more things. First, I put the kickstand back together (from memory) -



Looks really nice, right? Well, I messed up- the spring is on backwards. I'll get it later.

Then I decided to move the valve springs & their associated hardware from the disintegrating paper egg crate to a plastic box -


I also moved the head (and everything I will need to lapp the valves) into the house- that's for tomorrow.
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Old 03-21-2010, 06:58 AM   #58
Hondo OP
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Day 14

I started this day with another quest- looking for fine grit lapping compound to use when lapping the valves.

I couldn't find it anywhere in Denver, so I put out an appeal to the ADV Rockies members and theantipaul offered some up- Thanks Paul!

So the kids & I drove to Pauls' shop and he gave me three grits - even put them in plastic bags for me -



On the way back home I stopped at a pharmacy and picked up 2 bottles of Glycerin- to soften up a rubber boot.

This is the rubber boot that covers the shaft drive connection. It is no longer available from Honda and my seal was getting a bit stiff -



So I dumped both bottles of the Glycerin into a plastic bag and added the seal- I'll let it soften up until I need to install it -



Then I got busy lapping the valves.

Here is an exhaust valve with some lapping compound on the seat/valve -



Using Genesound's method, I connected my electric drill to the back of the valve using a short length of tubing to connect the valve stem to the drill -



I used a slow speed, reversing and in & out acion to lapp the valves.

All was going well until I found one of the intake valves was bent & wouldn't seat properly for the lapp. I figure that I bent the valve when I was cleaning it of deposits on the wire wheel side of my bench grinder- it got caught and slammed into the bench.

So I then stopped everything and checked the rest of the valves. I found another intake that had a wobble to it as well (when rotated in the head you can spot a bent valve very easily).

I posted up the problem at the DOHC forums and Gene recommended Cycle-Re-Cycle II in Indianapolis. I bought 2 new intake valves for $36 shipped.

http://www.crc2onlinecatalog.com/

I'll be finishing up the rest of the valves today -
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Old 03-21-2010, 09:22 AM   #59
nachtflug
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is there nothing this man won't power wash?..

very cool thread, just saw one on CL.

http://albany.craigslist.org/mcy/1649559889.html
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Old 03-21-2010, 09:28 AM   #60
Hondo OP
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Quote:
Originally Posted by nachtflug
is there nothing this man won't power wash?..

very cool thread, just saw one on CL.

http://albany.craigslist.org/mcy/1649559889.html

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