Author Topic: 400 engine rebuild  (Read 1073 times)

Offline mike the bike

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400 engine rebuild
« on: June 03, 2017, 09:02:33 PM »
Put some oil and petrol in it and....

Started up no bother.  After spannering every single nut and bolt in the engine it's a relief.  I just rode it around the block a few times owing to the fact there's no headlamp, no MOT and I wasn't wearing a helmet.

Sounds a bit clattery at low revs but I reckon that will go when I've synced the carbs.  The clutch needs adjusting as does the choke (sticking somewhere)

Shouod be OK for the Crich Tramway museum trip.
Where's that 10mm socket got to?

Offline hairygit

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Re: 400 engine rebuild
« Reply #1 on: June 03, 2017, 09:06:31 PM »
Well done! The feeling you get when it starts and runs after your first few engines is amazing!

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If it's got tits or wheels, it's hassle, if it's got both, RUN!!!

Offline mike the bike

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Re: 400 engine rebuild
« Reply #2 on: June 03, 2017, 09:14:58 PM »
Oh yes.
Where's that 10mm socket got to?

Offline Nurse Julie

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Re: 400 engine rebuild
« Reply #3 on: June 03, 2017, 09:34:58 PM »
Well done Mike. My engine will be coming out at the end of the summer and I'm threatening to do the strip and rebuild myself.........with no help from him indoors :o :o :o :o I hope it's as successful as yours.
LINK TO MY EBAY PAGE. As many of you know already, I give 10% discount and do post at cost to forum members if you PM me direct.
https://www.ebay.co.uk/sch/julies9731/m.html?item=165142672569&rt=nc&_trksid=p2047675.m3561.l2562

LINK TO MY CB400/4 ENGINE STRIP / ASSESSMENT AND REBUILD...NOW COMPLETE
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Offline Green1

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Re: 400 engine rebuild
« Reply #4 on: June 03, 2017, 09:43:37 PM »
Crich forgot about that  ::)
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Offline Nurse Julie

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Re: 400 engine rebuild
« Reply #5 on: June 03, 2017, 09:51:29 PM »
Crich forgot about that  ::)
I only reminded you a fortnight ago !!! ::) ::) ::)
LINK TO MY EBAY PAGE. As many of you know already, I give 10% discount and do post at cost to forum members if you PM me direct.
https://www.ebay.co.uk/sch/julies9731/m.html?item=165142672569&rt=nc&_trksid=p2047675.m3561.l2562

LINK TO MY CB400/4 ENGINE STRIP / ASSESSMENT AND REBUILD...NOW COMPLETE
http://www.sohc.co.uk/index.php/topic,14049.msg112691/topicseen.html#new

Offline Green1

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Re: 400 engine rebuild
« Reply #6 on: June 03, 2017, 09:58:51 PM »
Been crazy busy some of us haven't retired just yet.
Good job I finally managed to sort the 550 fork seals out just got to do the 750 ones now and re MOT it.
Current bikes
Honda CB750k1 Valley Green Metallic
Honda CB750k1 Candy Gold
Honda CB550k Candy Jade Green
Honda CG125
Aprilia Pegaso 650
Moto guzzi 1200 sport
Kawasaki EX650R (Mine until dave pays for it)
Kawasaki ZXR400 J

Offline PatM

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Re: 400 engine rebuild
« Reply #7 on: June 03, 2017, 10:22:01 PM »
Well done Mike. Getting a bike going or any engine is better than....
and its not forgotten about the next morning... happy days!

Online Johnwebley

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Re: 400 engine rebuild
« Reply #8 on: June 04, 2017, 03:25:27 PM »
Put some oil and petrol in it and....

Started up no bother.  After spannering every single nut and bolt in the engine it's a relief.  I just rode it around the block a few times owing to the fact there's no headlamp, no MOT and I wasn't wearing a helmet.

Sounds a bit clattery at low revs but I reckon that will go when I've synced the carbs.  The clutch needs adjusting as does the choke (sticking somewhere)

Shouod be OK for the Crich Tramway museum trip.

 well done Mike,soon be purring again
lifelong motorcycle rider,and fan

Offline mike the bike

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Re: 400 engine rebuild
« Reply #9 on: June 04, 2017, 06:06:23 PM »
The sunshine beckoned so I went out for a blast today on it and there's a troublesome problem with the gear change.  It doesn't want to change down or go into first from neutral.  I was thinking I had to remove the clutch and have a look at the gearchange bits.  Anyway, rode it home and I found the gearchange was on the wrong spline and the boot was biffing the sprocket cover - which is why it wouldn't change down.  So that's sorted.

Other issues;  weeping from the rocker shaft end stops.  Tightened, now OK
Dripping oil from the sump gasket.  Tightened but will keep an eye on it.

The positive terminal on the battery has broken off so I'll have to get the big soldering iron out to repair it.  It's a good battery apart from that.

Apart from these little snags, the bike rides great and the engine feels nice and tight.  Well happy with it.
Where's that 10mm socket got to?

 

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