Honda CB750 Restoration - Cleaning, Examining and Preparing Part 8

We now have a pretty clear picture of what it's going to take to breathe new life into this old engine. Hope you enjoy!
This channel can be supported via Patreon.
www.patreon.com/peteranderson

[@garethreid6258]

Hi Peter, excellent videos! I'm married to an Australian and she's telling me all about the cars you've restored. I'm just about to start rebuilding a 1976 CB750 K6 which had done 61000 miles and was a bit tired. I'm reboring mine to 0.25mm oversize which is the first oversize option. Honda supply pistons and rings in 0.25, 0.5, 0.75 and 1mm oversize so you don't need to bore out to +1mm straight away if you don't want to. Cheers from Scotland!

[@PeterAndersons]

Thanks Gareth, you're right indeed... I will give the barrels to a machine shop for correct measurement and get the appropriate oversize. Cheers

[@MrButtonpresser]

'Loads of videos' is never a problem! Thanks.

[@brianb8401]

great attention to detail peter you are a compliment to our craft

[@PeterAndersons]

Thanks Brian... but I'm a bit green with bikes, but learning as I go. Cheers

[@steve87uk]

The dropping / throwing stuff around makes me chuckle. That's how I spend most of my time in the garage. My (not so) finest moment was dropping a bolt from a speedo drive into the hole in a gearbox (I'd oilled the thread it and was threading in by hand to try and clean up the thread before re-fitting the drive). Unfortunately it was about 10 seconds after I said "if I drop this I'm going to look like a right idiot!"

[@jaredthereal]

I stripped my CL360 engine last year and I fear I've forgotten where all the little bits go! This is motivating me to get it back together. Great content my friend.

[@PeterAndersons]

Welcome Jared, jump back in mate, the rewards will make it worth it. Cheers

[@paulmanson253]

Never used oil of wintergreen but silicon grease can make a huge difference in softening old rubber. Sometimes it will sufficiently resurrect that replacement is not needed.

[@PeterAndersons]

Yes I need to really investigate this rubber issue - I've heard that replacement items are not as good as original. Cheers

[@captpaulhaugan]

It's nice to see you know how to support a crankshaft for storage. I have seen an Alco locomotive 🚂 crankshaft break when laid on its side unsupported during storage.

[@NickelSpeedShop]

Great videos Peter, thank you for bringing us along for the adventure.

[@PeterAndersons]

Welcome sir, hopefully I can keep you interested in this stuff...

[@chrisriddiford6216]

@@PeterAndersons Chris riddiford

[@Rock-Forehead]

Congrats on 10K, Peter. Well deserved!

[@PeterAndersons]

I know mate... who'd have thought?

[@classic-fan6177]

Great videos! Having worked on a few Japanese bikes in the 70's/80's I'm amazed you managed to disassemble without an impact driver and without any of the screws/bolts shearing. Keep up the good work, I think you've got a good engine there.

[@TheRoyPeters]

Currently also restoring a cb750 k2! Good job👍

[@theprojectcollector7260]

I did! See you put it on wrong, but it would be my nightmare. I once opened a zundapp 50 cc bike, split it in half and all content dropped onto the workbench. I tell you a nightmare.

[@georgegrierson]

Oil of Wintergreen and 90% rubbing isopryl alcohol works wonderful on old hard rubber parts. 1 part oil of wintergreen with 3 parts alcohol.

[@alanlake5220]

Hi Peter thanks for another very informative video, cant wait for the next one. As someone from the uk I must say you have some strange sounding wildlife in the background, at the beginning of this vid, sounded like the clangers !! but guess some kind of bird

[@PeterAndersons]

I didn't hear them, but there are an abundance of Crows and Magpies in this area. Cheers

[@Gokizzmass]

yep magpies.

[@benmoss5639]

Enjoying the videos, thanks for making them. Hoping I never have to tear my cb750 apart.

[@PeterAndersons]

That's it Ben... keep it in one piece and enjoy it! Cheers

[@spacystacy51]

great video. happy to see this is in good hands.

[@PeterAndersons]

Thanks for the kind words mate. Cheers

[@gregmeares5711]

im excited to get home from work and watch this series. i love all your videos watch them all at least three times 😂good work mam keep it up

[@PeterAndersons]

That's brilliant Greg, glad you like my ramblings... nobody here listens to them haha.

[@gregmeares5711]

Peter Anderson as i always say drive safe and injoy your classics 😂love it

[@Fairlanecustom300]

Hi Peter, There are some Vids on KZbin about softening rubber parts. I've seen one using oil of wintergreen, but can't remember who did it. They did rubber boots from a Honda air cleaner from memory or carby boots

[@gilgameshismist]

I tried with Oil of wintergreen, which was a mess and the rubber ended swollen-up. So I ended up buying a new set of manifold inlet boots. That was 70 dollar well spend since the carburettor went on and of way easier with the new ones.

[@PeterAndersons]

Thanks mate, not sure what to do yet... I'll get to them once then engine is in one piece, thanks for the info. Cheers

[@blairguinea1337]

Awesome job and narrative as ever Peter............thanks so much

[@MidwestMotoRider]

Awesome, and your right when you are done you will know exactly how good the motor is.

[@Mercmad]

Regarding that nut in the clutch. I make my own sockets for those. I buy 2nd sockets from cash convertors and grind /machine the end of the socket so has 4 or 6 teeth to fit the socket . most of the sockets are a few cents and it takes 5 minutes to make one . It's easier if you have a mate with a milling machine to knock one up but i have used a cutting disc in a 4' grinder and three cornered file on occasion .. :-)

[@PeterAndersons]

Good ideal mate... I may need to try that to refit it. Cheers

[@-DC-]

fantastic detail Pete really appreciate it.

[@PeterAndersons]

There's going to be lots of detail on this one. Cheers and thanks

[@tomeyssen9674]

Gotta be the Magpies.....anyway love the video and the thoroughness of procedure. -Knoxville, TN

[@trentkahler7]

👍🏻loving these videos

[@PeterAndersons]

Thanks mate.

[@tombob671]

wow, you know your stuff, these things are made like a watch great video

[@PeterAndersons]

Thanks Tom, I'm learning as I go and from a bit of past experience. Cheers

[@captpaulhaugan]

When doing transmissions I like to use 2 dozen egg flats to lay all parts in order. It's also a good surface to absorb oil.

[@davidz1421]

Hello Very good and correct restoration I wish had the fuel tank painted original look and also had more vintage looking tires on other than that beautiful job.

[@newby46]

HI, Peter. I just wanted you to know that I have been thoroughly enjoying your videos (even the ones about the motorcycle). I can't afford to be a patron, but just know that piss-poor people watch too.

[@matthewsmith1925]

Hi Peter, I’ve been enjoying watching your videos on the cb750 rebuild, I’m in the middle of doing the same and have found them invaluable. Could you tell me if you changed all of the roller bearings in the engine/gearbox as I have a 12000 mile bike where everything seems good and the bearings run free with no noise but am in a quandary as to whether to change them all. I’ve renewed pretty much everything else whilst inside the engine but not sure whether to change these. I did the strip because it has had crank case damage in the past from a snapped drive train. Many thanks Matt smith

[@DarylKing75]

Oh no! I've caught up. Enjoying the videos as usual. Although, I'm not sure how you find the time (my wife is a teacher also). I'm off to pop over to your patron to do my part. :)

[@bathurst1000]

Hi Peter, be careful with that gear at 23.20. It cannot go either way. There is advice in the Honda shop manual about getting the boss in the correct orientation to the neighbouring gear. People on the SOHC forum have had gear selection problems resulting from installing it incorrectly. Have to pull the entire engine to fix.

[@PeterAndersons]

Thanks for that and very much appreciated. The gear looks to be the same either side, so mustn't be phased symmetrically between the spline and the teeth ... I can't find reference to it in my manual - can you send me a private message and point me in the right direction in the forum or send a copy of the relevant page. Cheers Pete

[@gregwilson2362]

Hi Peter, I'm currently on my 3rd CB750 build. Not sure how to PM you? However check this link. forums.sohc4.net/index.php?topic=162257.0 I may also have some info on that 'head crack' for you.

[@PeterAndersons]

You're a legend, I now know precisely what is meant. Any other info is eagerly sought. Cheers and thanks again

[@iansouthoz3773]

Loving your vlogs, thankyou. looking forward to the next one.

[@jackhodge9824]

Hey Peter. I have been enjoying your videos alongside my build. I was wondering, was one tube of HondaBond enough?

[@therat5680]

Grate video and Great information thanks for the videos mate 👍

[@PeterAndersons]

No problem, glad you liked it. Cheers

[@zalion0]

Where did you get the manual from? I’ve been after one of these! Picking up my ‘77 CB750 F2 next weekend!

[@PeterAndersons]

I think I downloaded and printed most of it, cheers.

[@rustangcoady3421]

Hello Mr. Anderson I really enjoy your videos and I have learned alot from them. Could you please do a detailed video on how to dial in Holley 4150 HP series double pumper. Thanks and have a good one!

[@PeterAndersons]

Hello sir, well, I need to do a Holley for my XW, but not quite ready yet... will post when I can. Cheers and thanks

[@rustangcoady3421]

Peter Anderson Awesome looking forward to it.

[@cambo1200]

This is the part of the restoration where the checkbook comes out.

[@PeterAndersons]

Oh yes mate, I will be learning a lot about that. Cheers

[@richardgraham7781]

Hi Peter - Oil of Wintergreen is the common name of Methyl Salicylate, the smelly ingredient in most heat rubs and liniments - should be available from your Phamacist. I can probably get some for you if you really want it. Also - I noticed a bit of lateral runout in the gearbox sprocket of the primary drive chain when you spun it - should that be there?

[@PeterAndersons]

Thanks Richard I had no idea what it was... the lateral runout shouldn't be there, so will check it out... may need to check a few other odds and ends with a dial indicator before reassembly. Cheers mate... (fingers crossed on the Chookshed issue).

[@DatBlueHusky]

i just love your videos! you are like me and picky about everything when working on engines lol

[@wiveybloke]

i think you'll find there is a circlip holding the clutch basket on to the shaft

[@gosportjamie]

Yep, I noticed that you put the large gear back on the shaft the wrong way round...

[@johntopia7800]

thx peter for this video waiting for the next cheers

[@ChadwickRider]

My shift drum will not come out... I'm wondering... how did yours just slide right out? Was there a part that wasn't documented... like you holding the drum with your hand and loosening the center screw? I ask because mine will not come out, and some jackass before me tried using a Phillips head (instead of JIS) on it and pretty much stripped it. Can't get the gears out without removing that shift drum... so I guess I'm going to clean the lower half of my case with the gears, shift drum and bearing still in it... I didn't want to but I have no choice.

[@wix-lj8un]

Hi Peter, great videos just wondering if you still have the crash bar and how much would you want for it, cheers Glen

[@PeterAndersons]

Hi Glen, I will swap you for a box of Lipton Black Tea... they're about $3.00 from the supermarket. Cheers

[@wix-lj8un]

excellent done deal, just wondering how i can contact you privately to arrange postage thanks,

[@wix-lj8un]

Hi Peter i have private messaged you on youtube regarding the crash bar postage cheers Glen.

[@JMassengill]

nice! also loving these videos

[@PeterAndersons]

Thanks Johnny.

[@darrenanderson4436]

Pete you shouldn't have to rebore to 1mm oversize if it doesn't need it, thats the 4th oversize. should clean up at .25 or .50 thats the 1st and 2nd oversize. see how it measures up. cheers ando

[@PeterAndersons]

Thanks mate and yes, you're right... I will go for the smallest oversize I can get pistons for. Cheers

[@genesiscomputersystems5628]

loved it

[@PeterAndersons]

Excellent. Cheers

[@mixablefluid9353]

for your next series I think you should take your Ford to a car show or go to some car clubs and show us how actually car clubs work like memberships and Club days out and I think that you said in one of your show's that one of your mates was doing up a car we can see how that's going yeah it was just an idea

[@mcfast52]

Check the 2sec gear carefully it is the weak point of the transmission, like most bikes

[@PeterAndersons]

Will do John and thanks for the tip. Cheers

[@SuperSpannerX1]

Awesome :)

[@PeterAndersons]

Thanks

[@chrispainter3590]

put the cases in the dishwasher after hydro blasting it gets out all the glass beads dont tell the wife!

[@PeterAndersons]

She'd kill me! Even if I didn't tell her, she'd see the look on my face... not much gets past her. Cheers

[@ocavant]

Any way to get a list of parts suppliers? Thanks!

[@gbowne1]

Authentically Japanese bearings?? NSK.

[@jacildolustosa2155]

quero ver barulho do moto quando fucina

[@johnhetherington8830]

electric ASAP