Topic: 76 750K this bike will change my life.

[Little_Horse]

well, looks like the project will be on a fast forward for awhile.  i need to buy some more motorcycles because one of my best friends asked me to escort him and his fiancee off after the ceremony.  basically, i need two or three sohc's working properly. The rear tire needs to be able to do burn outs and the exhaust needs to be louder.  So that's 5-600 that is going towards the bike...  i'm only thinking a couple months!  or less...  this rocks, but motorcycles will always be my first "baby" so  when they need attention, they get it!

 

I fixed all your... um grammar... or actually "this is your conscience speaking" (booming voice in head)

[wannabridin]

haha, nicely put!  if you had this mustang, you'd understand!  had her for over 10 years now!!!  she was the reason my gear-headedness has evolved so "quickly"!!! 

[Little_Horse]

alright I will bite... lets see some pics of the "stang"

[wannabridin]

at a boy!!

[Little_Horse]

ok I will concede, it is worthy of a little time re-placement away from the bike. I like my classic cars too. I have a 65 vw bus and it sometimes gets my time over bike builds too.

I really like the color

[Zaipai]

Nice Mustang wannabridin... You defiantly want to keep it up for sure..

.: Scott :.

[wannabridin]

thanks for the comps guys!  i know i need to keep her up, so that's why i'm going to do this work this summer.  sorry to the CB, but the 10 year older girl gets priority when she beckons! 

Ok, so opinions for those with old cars, especially Bill!  i'm still on a budget and i really like sticking to the "original" technology of the day.  ie, Hooker full length headers wern't available like they are now, but Tri-y's were!  opinions on Tri-y's vs. full length headers on a street car?  won't see the track, just a friday night date car for the most part!  i found a nice set, with gaskets and ceramic coating, for less than $300 new!  thanks guys!!

[wannabridin]

ok, i just had an epiphany!!  i've been so narrow minded on getting this old girl the EXACT way i want her that i've just been stubborn to throw her on the road for anything short of EXACTLY what i want!  i'm not an old timer like MCRider with a good amount of bike builds under my belt, so i can't "afford" to have this girl down for the count for SO long!  ok, here's my new proposal, please offer input and correct me where i'm wrong!  i'm ready to get her back on the road with MOST of the parts i already have!  this would mean:

-"Gordons" frame kit
-my rear sets
-GL front end
-stock wheels, cleaned up and re-spoked to be safe
-go through the transmission and fix everything i can since i'll be able to remove the head and cylinders later
-do my own porting
-Hondaman ignition (i probably need to snatch one up before he goes commercial with them!!!)
-MAYBE do my own valve job, but probably take it to a guy here who does good work for good prices (sorry MReick, you'll get it when i have the funds next year!)
-new cam w/ HD springs
-if the pistons and/or cylinders are not in service limits, throw the 4th over pistons on there from z1
-all frame mods i had originally planned on
-re-do electrics
-oil cooler
-paint job
-new rear shocks and progressive springs up front
-Hondaman swingarm rebuild
-etc...

ok, so what are your thoughts on this?  i'd rather have the bike back on the road than wait around for money!  this way i'll get a better "bang for the buck" and since i'll be able to remove the top end and cylinders later, i can always work on things there.  well i could do almost everything except the dry clutch, if it comes to fruition.  

thoughts?  opinions?  advice?  thanks guys!

[wannabridin]

bump for my latest post please!  i'm in need of inspiration that doesn't require much money! 

[Zaipai]

I say go for it, I had to do the same thing. There was so much more I wanted to do but I settled for what I had and what I could afford. The front wheel for example. Take what you have and get her rolling. That way you can ride it around and work out the bugs while you amass your fortune!!

.: Scott :.

[wannabridin]

ok guys, so i'm going to try to start working on some things slowly while i have some extra time.  i have the super sport tank and i'm going to weld up the door cover and add a carpy fuel cap, but i want to know how y'all think i should go about this?

should i just weld up the stock cap and drill a hole for the new filler?  i'm thinking i should get a piece of tube and weld it on to the existing filler hole and do a full weld on the inside to seal it up.  then i can cut out a piece of sheet metal and weld up the rest and the hole then cut down the tube flush to the patch piece and bolt the cap on.  this way i won't have to worry about any fuel getting stuck somewhere it shouldn't be.  thoughts??

[Little_Horse]

well, it never a good thing to have gas in places it shouldn't be so I would think your idea of putting a neck in first is a good one.

[wannabridin]

so should i take off the old tank lid and use some sheet metal?  i think this would be better because someone could probably use the lid and cap.

[Little_Horse]

I would think building from scratch would give you a better fit for welding things backup vs the gaps in the lid.

[wannabridin]

that was my logic too, i'd rather weld in a 1/16" gap instead of almost a 1/4" in places!  on thin stuff it'll warp a lot less and reduce my risk of burn through!!

so andrew, how's the back??  also, we need to work up some plans for my seat 

[Little_Horse]

I already have started making plans. I even went shopping and bought a few new tools to make the job easier... in theory at least. The back is on the mend, I still am only supposed to lift less then 5 lbs but I am figuring out ways to fumble around some.

[wannabridin]

just lift with your legs!      or have the old lady do it!

either way, don't stress/strain yourself on this, we'll slowly work out the details and cash flow.  i still need to go over to the storage unit and take some measurements for you...

[Little_Horse]

yep no rush here I can only lift 5 lbs so it may not happen right away but I can dream right?

[wannabridin]

ok, so time for a REAL update...  about the only good thing that happened today was that i got some serious work done on the cb!  the rest of the day sucked, because i got laid off from work!!  i got 2 weeks severance, my vacation pay out and insurance coverage til the end of the year, but still a #$%*ty time...  so i digress.  i decided to start checking out my spare engine to see what i was working with and what i could use.  sorry for the length of a single post, but i'd really appreciate some insight from everyone!

looks like i'm going to just have to gut it, since the cases are crap...  engine mounts are broke and someone didn't do a good job of a case repair in front of the sprocket....  here's pictures of it all!

engine on the stand awaiting tear down:





problem from the start, broken engine mount:



valvetrain awaiting teardown:


so how bad are broken helicoils??




piston tops in cylinders:


all the pistons look like this on the inside.  if they measure up ok with the calipers and mic, do they look ok to use from this angle??


i'd say i need a new tensioner eh??


shifter mechanism, looks to be in good shape.  can i order new screws for the bearing retainer??


nobody forget this o-ring!  it isn't made anymore!  thanks Mark!!


i didn't have the tool to "properly" remove this nut, so i tried using my punch, and i inflicted minimal damage, as you can see from the picture.  not to worry either way, Rob needs to get that dry clutch over to me!


the cases are split, FINALLY!! 



here's the NASTY case repairs someone else did before...



does anyone know where this half room came from?  could it be a broke half of a retaining ring for the shifter assembly??


does this look like too much play in the primary chains?  i don't remember what Honda calls out for...


underside of the head.  how do thes valves look?  i was expecting more shrouding, like Mark said in his book.  i need to take a picture of the ports and everything up close to see where i should work on the porting since this will be the head used on the engine build...  up close of cylinder 1, 2, 3 then 4.






and pictures of the cylinder bores.  # 1, 2 and 3 are all super smooth, looks like they just need a good hone.  #4 has one ridge that i can just catch my fingernail on and another smoother one, but i think a hone will knock that down.  you can see them at about 12 and 1-130...  thoughts?  pictures are of cylinders 1, 2 3 then 4.

[voxonda]

"does anyone know where this half room came from?  could it be a broke half of a retaining ring for the shifter assembly??"

Hey G,

These are retainers for the bearings of the gearbox, they are not broken, look at the grooves in the outer bearingrings and in the cases. Throw these cases out, they are really crap. You should be able to find good ones if not I have a set of F1 cases which are very good.

Rob

[Zaipai]

Wow, that is quite the mess there. However I believe you can clean er up. I agree the cases should go, tho you could fix bad spots I would think it would be cheaper and better just to replace them. Keep up the good work. Great documentation!

TTYS,
.: Scott :.

[wannabridin]

I'm going to use the cases that are on the engine on the bike.  This motor was basically bought for the head and spare parts...

I'm going to try to disassemble the head today and start documenting all the clearances to see what's still useable. 

[wannabridin]

can someone please give me a link or show me a diagram of how you measured your clearances in your valve guides?  my exhaust ones SEEM to be ok, but i think my intakes might be a bit loose...  i'm using a magnetic based dial indicator, but with the head disassembled, it's tough to get a good accurate reading!

[wannabridin]

ok, well i've kept on going, dunno if anyone here has any advice for measuring those valves...  i digress!

well here's the bike as it sat today, i pulled the motor out of this, and what a bear it was!!  got all the engine mounts undone just fine, except the front left one (clutch handle side) and it gave me SO much hell!!  bolt head broke off, so i tried to dill it out, nothing...  then i finally got the nut off on the engine side, wedged the motor away from the frame enough and cut the damn bolt in half with the sawzall... 

bike as it sat today, i'm thinking about lowering the front maybe, instead of raising the rear??  thoughts?  either way, i think if it were lowered a tad up front it would look really good??






here's the broken bolt...  does the case still look ok, even though i "kissed" the inside some with the drill and removed a little bit of material?  it doesn't appear to be structural, so i think i'll be ok






finally, i made a little trip with some 20% off coupons to harbor freight to get some measurement tools so i can measure the motor parts and an electric die grinder to do some porting.  it's big, but i think it'll do pretty good!  if not, air die grinders are only about $12, so i think this will do!  just thought i'd brag some, i'm really hoping everything works out well!  oh ya, and the paper towel holder is magnetic and i think REALLY slick!





more progress to ensue this week for sure!!  if anyone has any help for questions i posted earlier, i'd really appreciate it!

[Little_Horse]

the case should be ok even with a few nicks. As far as I can see in the pics.