Honda-SOHC
SOHC.co.uk Forums => CB350/400 => Topic started by: Eldrick on May 14, 2022, 01:55:24 PM
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I want to do more work on my 400f myself and I think I want a torque wrench and a carb synchronizing kit.
I keep looking online and get overwhelmed with choice. The other issue is I don't really know which is best overall for this specific bike rather than ‘the best make’. No good having a best make torque if I can't perform most/all jobs on my bike and end up buying another one.
I also thought I wanted a single gauge, four into one, sync kit, I could be fooling myself though. I liked the idea that all four carbs were being tested on one gauge.
So, if you can recommend a good torque wrench and carb synchronizing kit I can get started on being a shed mechanic and maybe even get a second (His and Hers) 400f.
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Decent name 3/8 drive torque wrench and sealey 4 gauge set which costs about £120 on ebay, single gauge sets will drive you crazy
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My trusty Britool 1/2" wrench was too big so I bought a 3/8" Draper. Good tool but the Imperial & Metric Scales are in Inch-Lbs or Newton Metres range is 10-80Nm. I had to do a conversion for all the settings in my manuals.
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My trusty Britool 1/2" wrench was too big so I bought a 3/8" Draper. Good tool but the Imperial & Metric Scales are in Inch-Lbs or Newton Metres range is 10-80Nm. I had to do a conversion for all the settings in my manuals.
Ha, see, I didn't even think about all that maths! Glad I asked before buying.
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Get a Britool 3/8 torque wrench if you can. That will cover 99.9% of the torques on your bike. Don't worry too much about vac sync gauges, you can set the slides very, very, very close by manual bench sync.
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Don't worry too much about vac sync gauges, you can set the slides very, very, very close by manual bench sync.
I may have just done that bit with 3.2mm feeler guage. I also think I can afford that wrench if it is the Britool AVT300A
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Don't worry too much about vac sync gauges, you can set the slides very, very, very close by manual bench sync.
I may have just done that bit with 3.2mm feeler guage. I also think I can afford that wrench if it is the Britool AVT300A
Not sure that model has a high enough range at 33Nm?
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3.2 is a bit big, better using a 1/16 drill bit shank preferably new so no damage
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Get a Britool 3/8 torque wrench if you can. That will cover 99.9% of the torques on your bike. Don't worry too much about vac sync gauges, you can set the slides very, very, very close by manual bench sync.
ok so what torque range do we need?
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If you want to torque every thing 8 ftlbs to 50 ftlbs, leave out the alternator, primary gear and clutch nut and 8 ftlbs to 20 ftlbs will do.
Those 3 are normaly done to BT.
Gauges are Sealey VS209 gone up to £150 cheapest on ebay, nearest thing to genuine Honda ive seen anywhere
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If you want to torque every thing 8 ftlbs to 50 ftlbs, leave out the alternator, primary gear and clutch nut and 8 ftlbs to 20 ftlbs will do.
Those 3 are normaly done to BT.
What's BT Bryan?
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Bleedin’ Tight (?)
Sent from my iPhone using Tapatalk
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3.2 is a bit big, better using a 1/16 drill bit shank preferably new so no damage
OK so about 1.5mm, I may have a dril bit, if not the guage will do it
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If you want to torque every thing 8 ftlbs to 50 ftlbs, leave out the alternator, primary gear and clutch nut and 8 ftlbs to 20 ftlbs will do.
Those 3 are normaly done to BT.
I don't anticipate ever replacing pistons myself but I would be ok replacing gaskets in the head. I also would not be touching gear boxes, so with that in mind, what range may I need?
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Personally the torque wrench I use most is my Seeley 1/4“ as a) it came with a calibration certificate and b) the range is low enough for the 8ft/Lb for 6mm bolts (and there are plenty of those on the 400/4 engine). My 3/8 torque wrench starts at 10ft/Lb and is not accurate at 8ft/Lb, ask me how I discovered this! If you are going to strip a thread it will be a 6mm!
If you can afford both get a 1/4“ and a 3/8". If you go to one of the larger shows Seeley normally have their stand with some deals on (or try eBay).
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For small values I have the Sealey 1/4" . For higher torque settings like rear wheel spindle nut I've got an old faithful Norbar 1/2" torque wrench. I've had it since the seventies... it might need calibrating!
I can recommend the Morgan Carbtune carb balancer, reliable and accurate. 👍
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This seems to cover the ranges? Is it too wide a coverage to be accurate? Anybody have one?
https://www.ebay.co.uk/itm/392237175390?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=dGsYz2xWT-y&sssrc=2349624&ssuid=Wwl4JSf7QJi&var=&widget_ver=artemis&media=COPY
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If you want to torque every thing 8 ftlbs to 50 ftlbs, leave out the alternator, primary gear and clutch nut and 8 ftlbs to 20 ftlbs will do.
Those 3 are normaly done to BT.
I don't anticipate ever replacing pistons myself but I would be ok replacing gaskets in the head. I also would not be touching gear boxes, so with that in mind, what range may I need?
Like yourself, I don't (hopefully!) have any ambition to go any further beyond head and barrels. One of my favourite online suppliers for tools etc., is White Rose Tools in Yorkshire. Have virtually kitted out my garage using them, very quick service and reasonable prices. My personal choice of torque wrenches from them was a 1/4dr and 3/8dr Blue Spot, the 1/4dr being on offer at the moment! Have fun. Mike.
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The one you listed should be ok and Sealey is a reasonable mid range supplier
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Cheers Bryan.
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Whilst talking about tools, I wonder if anyone actually uses JIS screwdrivers or just Philips. I tend to use the latter with no issues but I would be interested to know. BTW, I have more screwdrivers than is healthy but no JIS ones!
Matt
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I use JIS screwdrivers with JIS screws. Philips drivers will not sit correctly in a JIS screw and the risk of rounding of the screw is very great at high torque. Just my opinion and minor experience.
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I use JIS screwdrivers with JIS screws. Philips drivers will not sit correctly in a JIS screw and the risk of rounding of the screw is very great at high torque. Just my opinion and minor experience.
Perhaps I should buy a set - you can't have too many screwdrivers!! ;)
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I bought cheap 3 driver set from Halfords. They are absolutely fine for the amount of use I give them.
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I have an old T-bar JIS screwdriver for the common case size screws. Never failed me yet.
The issue is the angle of the points being different, so a phillips doesn't apply torque on th e full area it should on a JIS fastener. Right tool for the job is always best.
A lot of folk blaming rounded off screws on bad materials were just using hte wrong tool. Not always......but
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I used impact driver JIS heads with my cordless impact driver it undid crankcase covers that had not moved for decades.