Author Topic: 77cb750 1st engine rebuild (Read 1601 times)

K7-Steppy · « **on:** January 11, 2019, 11:53:36 am »

First time rebuild with no previous engine experience and was hoping someone could help me with a question. I'm ready to split the cases but only doing it to replace the primary chains and was wondering if I can do so from the top (just taking off top case). I've noticed most vids people turn the engine upside down to work on it by taking the bottom case half off so I wasn't sure if it had to be done that way.

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PeWe · « **Reply #1 on:** January 11, 2019, 12:15:26 pm »

I have always split the cases as it sit. Head cylinder, pistons off then open the cases. This for a total rebuild. Assmebly in oppsosite order. This way make it possible to test shifting gears to verify forks mounted correctly before closing the cases.

Open engine upside down when doing gearbox job without touching the head, cylinder which then need new gaskets and tighten head correctly.

K7-Steppy · « **Reply #2 on:** January 11, 2019, 12:18:21 pm »

Thank you very much!

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flybox1 · « **Reply #3 on:** January 11, 2019, 01:47:39 pm »

Good thread by brandEn....

http://forums.sohc4.net/index.php?topic=107040.0

Don R · « **Reply #4 on:** January 11, 2019, 04:07:46 pm »

I'd just remove the bottom case for primary chains only. That said, my projects get out of hand and I usually end up doing it all anyway.

HondaMan · « **Reply #5 on:** January 11, 2019, 08:25:32 pm »

Need a book on how to do it?

Don R · « **Reply #6 on:** January 11, 2019, 08:54:29 pm »

This^!

K7-Steppy · « **Reply #7 on:** January 11, 2019, 09:08:13 pm »

I've downloaded a few manuals but mostly relying on youtube and you guys since I already spent all of my money. Luckily I got enough Amazon cards for Christmas to get a full engine rebuild kit from 4into1......I hope it's good

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flybox1 · « **Reply #8 on:** January 14, 2019, 06:49:32 am »

There aint no manuals like this one....

Quote from: HondaMan on January 11, 2019, 08:25:32 pm

Need a book on how to do it?

MauiK3 · « **Reply #9 on:** January 14, 2019, 08:41:47 am »

Hondaman's book is THE book to help you, it will save you a lot of heartache and dollars.

Really, it's a must have item.

K7-Steppy · « **Reply #10 on:** January 14, 2019, 10:33:25 am »

How much for said book?

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kerryb · « **Reply #11 on:** January 14, 2019, 12:39:53 pm »

Quote from: K7-Steppy on January 14, 2019, 10:33:25 am

How much for said book?

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Only 1/3 of what you will pay for the mistakes and extra work the book will make sure you avoid. AND...it is so much better on the coffee table than that picture book of national parks!

K7-Steppy · « **Reply #12 on:** January 14, 2019, 12:43:07 pm »

Well considering this is my first rebuild that sounds pretty expensive lol

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flybox1 · « **Reply #13 on:** January 14, 2019, 02:39:37 pm »

My wife wont let mine on the coffee table because of the stains on the pages

I dont see the problem.... $:-\$

Stev-o · « **Reply #14 on:** January 14, 2019, 02:40:02 pm »

Quote from: K7-Steppy on January 14, 2019, 12:43:07 pm

Well considering this is my first rebuild that sounds pretty expensive lol

Here is said book. Nearly all of us that have done an engine rebuild have one.

https://www.amazon.com/CB750-book-Putting-Them-Back/dp/0557310237

kerryb · « **Reply #15 on:** January 14, 2019, 02:41:59 pm »

At around $100 I though it was very expensive...I was wrong, it has saved me at least three times that, and is very entertaining too.

K7-Steppy · « **Reply #16 on:** January 14, 2019, 03:11:41 pm »

I'll definitely be picking that one up sometime. I feel like I've seen some pages before from it on this forum

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MauiK3 · « **Reply #17 on:** January 14, 2019, 03:16:19 pm »

Pick it up before you start. Just think of the cost as enabling you to avoid any parts, costing more, from being trashed due to improper work practices. It will also help you avoid doing things more than once.
It’s a must read.

Stev-o · « **Reply #18 on:** January 14, 2019, 03:44:47 pm »

Quote from: K7-Steppy on January 14, 2019, 03:11:41 pm

I'll definitely be picking that one up sometime. I feel like I've seen some pages before from it on this forum

Have you read the FAQ Thoughts of Hondaman?

http://forums.sohc4.net/index.php/topic,7401.0.html

bryanj · « **Reply #19 on:** January 15, 2019, 03:34:27 am »

Apart from Marks book you will need:-
3/8 dive good quality socket set with 6 sided sockets
3/8 drive torque wrench
JIS impact screwdriver
Circlip pliers
Decent feeler gauges
Oil and filter
Throw away the RTV gasket goo.

With those and a hand for lifting in and out of frame you can rebuild to as new with appropriate spare parts.

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Author Topic: 77cb750 1st engine rebuild (Read 1601 times)