Author Topic: 1977 400F2 first restore project  (Read 22570 times)

Offline Nurse Julie

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Re: 1977 400F2 first restore project
« Reply #30 on: October 22, 2020, 05:54:07 PM »
Try 400 four bits. If you can't see what you are looking for, email Steve and ask, he is a very helpful chap.

https://www.400fourbits.co.uk/
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 smoothoperator

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Re: 1977 400F2 first restore project
« Reply #31 on: October 24, 2020, 06:50:41 PM »
Yeehaw I've finally got the front brake working. I fitted a service kit to the spare, I think original, master cylinder. Now I have to tap in a new thread as I have removed the broken mirror stem by drilling most of it out. Could someone tell me what tap I need? Have sourced a clutch casing from 400 four bits. I'm concerned about what the thread might be like in the crankcase but that's for another time. Whilst idly moving the right footrest up and down as it is removed, it was clicking up and down nicely with a click in and out of the up position when suddenly it went floppy, I didn't see anything ping off anywhere but that's not to say anything didn't. Does anyone have a photo of one or a link to a drawing. Meanwhile, following in Macabthieles wake, I am in great admiration of the paint job on his, intact clutch cover. I must ask him how he did that super looking paint job.
Steve
2017 Triumph Bonneville T100
1977 Honda 400 Four Restored April 2022

Offline smoothoperator

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Re: 1977 400F2 first restore project
« Reply #32 on: October 25, 2020, 06:44:04 PM »
Got the front brake working yesterday but I thought it still felt a little spongy. So I used the cable tie trick on the handlebar that I found on this forum, well 24 hours later it is much improved. There is a tiny amount of fluid around the bleed nipple and I have read again on this forum that it needs to be really tight. I have fitted a new nipple but I'm loathe to swing on it much more as I have given it a fair old tweak already. I'll keep an eye on it to see how it goes.
Steve
2017 Triumph Bonneville T100
1977 Honda 400 Four Restored April 2022

Offline mike the bike

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Re: 1977 400F2 first restore project
« Reply #33 on: October 25, 2020, 06:46:15 PM »
Wrap PTFE tape around the bleed nipple, it's cures the leak and prevents it seizing.
Where's that 10mm socket got to?

Offline smoothoperator

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Re: 1977 400F2 first restore project
« Reply #34 on: October 25, 2020, 06:48:44 PM »
I did that with the old nipple, when I was fault finding. I thought I'd try without as it is a new nipple, however I'll have a look at doing that if it keeps weeping.
Steve
2017 Triumph Bonneville T100
1977 Honda 400 Four Restored April 2022

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Re: 1977 400F2 first restore project
« Reply #35 on: October 26, 2020, 10:32:10 AM »
I agree PTFE tape is very good even on new bleed nipples - more so when caliper bodies are alloy rather than steel.

With steel you can tighten them enough that the taper on the nipple fully beds in - with aluminium you can't risk a thread strip much better to squash some plastic based replaceable tape.
Honda CB500 K1 (new pit dug out ready)
Honda CB400 four super sport (first money pit)
Link to my full restoration http://www.sohc.co.uk/index.php/topic,23291.0.html

Offline smoothoperator

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Re: 1977 400F2 first restore project
« Reply #36 on: October 27, 2020, 06:02:40 PM »
Finished treating the tank with Evaporust and it has done a great job of removing the rust. The before and after pictures, as ever, don't do it justice. I've put a mix of petrol and oil in for now and given it a slosh around. Once the clutch cover arrives all being well swap for the broken one and then a short test ride before the disassembly stage. Now it's fingers crossed that there isn't a nasty surprise behind the clutch cover.
Steve
2017 Triumph Bonneville T100
1977 Honda 400 Four Restored April 2022

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Re: 1977 400F2 first restore project
« Reply #37 on: October 30, 2020, 12:03:53 AM »
Try 400 four bits. If you can't see what you are looking for, email Steve and ask, he is a very helpful chap.

https://www.400fourbits.co.uk/

I clicked on the link - there are no prices listed how does that work?
Honda CB500 K1 (new pit dug out ready)
Honda CB400 four super sport (first money pit)
Link to my full restoration http://www.sohc.co.uk/index.php/topic,23291.0.html

Offline Athame57

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Re: 1977 400F2 first restore project
« Reply #38 on: October 30, 2020, 12:32:48 AM »
Finished treating the tank with Evaporust and it has done a great job of removing the rust. The before and after pictures, as ever, don't do it justice. I've put a mix of petrol and oil in for now and given it a slosh around.
Did you fill the tank as per instructions or compromise given that this would cost more £100.oo to do?
« Last Edit: October 30, 2020, 12:37:14 AM by Athame57 »
I brake for animals!
1978 CB400F2

Offline Athame57

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Re: 1977 400F2 first restore project
« Reply #39 on: October 30, 2020, 12:40:10 AM »
Try 400 four bits. If you can't see what you are looking for, email Steve and ask, he is a very helpful chap.

https://www.400fourbits.co.uk/

I clicked on the link - there are no prices listed how does that work?
Just email Steve cooper there with the codes for the parts you want and ask for  a quote, he answers very soon. cooperman.12345@ntlworld.com
I brake for animals!
1978 CB400F2

Offline smoothoperator

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Re: 1977 400F2 first restore project
« Reply #40 on: October 30, 2020, 03:50:50 PM »
My plan A involved using a £3 3V aquarium pump with a stream of Evaporust directed over the upper part of the tank, the bit that rises up over the frame and is the hardest part to cover with the treatment. Whichever way you position the 14L tank it's impossible to cover with 5L of liquid. Very Heath Robinson and eventually I gave up, choosing instead to put 20kg of washed, dried pea gravel in to occupy the space. Then the 5L of liquid sat above the ridge with the tank tilted slightly forward. I didn't slosh the gravel around I just used it to occupy volume. I emptied the tank after 3 days then washed out with water, dried using my bike/dog dryer. Then I put in a mix of petrol and oil for temporary protection as I intend to use the tank soon for a road test. When I take the tank off prior to restoration I'll probably protect it with ACF50 as this stuff really sticks.
Steve
2017 Triumph Bonneville T100
1977 Honda 400 Four Restored April 2022

Offline smoothoperator

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Re: 1977 400F2 first restore project
« Reply #41 on: October 31, 2020, 06:54:41 PM »
Removed the damaged clutch cover ready to replace it with one from 400/4 bits. Sods law that the case that came off left one dowel in the crank case whereas the replacement has a dowel in that position, with the opposite for the other dowel. Are there any tips for pulling these out without causing damage to them?

Pics

https://photos.app.goo.gl/Qy59n2eGqLVMLAtEA
Steve
2017 Triumph Bonneville T100
1977 Honda 400 Four Restored April 2022

Offline robvangulik

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Re: 1977 400F2 first restore project
« Reply #42 on: October 31, 2020, 09:21:25 PM »
A bolt through the dowel so you can't squash it and then pull it with a pair of pliers. Heating it in advance can help too.

Online K2-K6

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Re: 1977 400F2 first restore project
« Reply #43 on: October 31, 2020, 09:26:23 PM »
You may find that you can twist it out with a 3 jaw drill chuck as it'll grab it equally.

Offline robvangulik

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Re: 1977 400F2 first restore project
« Reply #44 on: October 31, 2020, 09:30:04 PM »
Combine those two and it'll be perfect :D

 

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