Honda CB750 Sandcast
The Restoration Shop => Engine Mechanical => Topic started by: 4pots1969 on March 28, 2015, 07:26:23 am
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On the 4 x 6x25 bolts securing the oil engine lines one is mentioned "special" on the Part List with a different reference: 90040-300-000. That was t it special screw screw of the three other? :o
Thanks for the precision. ;)
Gerard
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One of those oil line screws had a cross point in the hex head if that's what you are asking about.
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yes, JIS head that went in rear hole of front oil line, if i remember correctly.
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Could someone post a picture of this special bolt 6x25? What is the usefulness of this special bolt? ???
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if you give me a couple days, i can do that. this bolt fixes front line. it's the rear bolt on front line. basically, it's a 10 mm hex head with a JIS (similar to Phillips head). this bolt accommodates a 10 mm wrench *and/or* a JIS (similar to Phillips) head screw driver. basically, it's like any 6 mm engine cover screw, except it is also a hex head.
Hi Mark !! what would you call this special "fastener?" a JIS/hex head screw ? or a JIS/hex head bolt ? :)
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From what i remember this special hex head bolt with the JIS or #3 phillips type screw driver head. This special bolt was closer inline with the frame tube making it more difficult to install/remove with a socket. A JIS or #3 phillips works nicely.
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Hi Mark !! what would you call this special "fastener?" a JIS/hex head screw ? or a JIS/hex head bolt ? :)
That would be a JIS/hex head screw. ;) :D
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Gerard, do you understand how this screw is unique ? Gerard, comprenez-vous comment cette vis est unique ?
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Could someone post a picture of this special bolt 6x25? What is the usefulness of this special bolt? ???
Steve... I ask you the question because I do not have the answer... ;)
I want to know is why Honda has decide to put this "special" screw, there must be a very good reason where then it's completely silly...
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Gerard, i couldn't load picture (too many pixels) on discussion board, so i sent you an email with picture last night.
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Steve, thank you for the picture.
If I have no plausible explanation when has the usefulness of such bolt, I put one as the other three...
Gerard
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From what i remember this special hex head bolt with the JIS or #3 phillips type screw driver head. This special bolt was closer inline with the frame tube making it more difficult to install/remove with a socket. A JIS or #3 phillips works nicely.
i concur with Marty's answer.
btw, fwiw, if you use these screwdrivers, you will never pick up another Phillips screwdriver. cost $89 from Vessel + shipping..... http://www.ebay.com/itm/Vessel-Megadora-8pc-Japanese-Motorcycle-ATV-Repair-JIS-Screwdriver-Set-/111604527890?pt=LH_DefaultDomain_0&hash=item19fc25f312 (http://www.ebay.com/itm/Vessel-Megadora-8pc-Japanese-Motorcycle-ATV-Repair-JIS-Screwdriver-Set-/111604527890?pt=LH_DefaultDomain_0&hash=item19fc25f312)
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Is it the special bolt we are talking about?
Marcello
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Thanks Marcello...
But why put this 'special' bolt with a cruxiforme footprint and this washer crimped methinks... ??? ???
Who can explain to me...
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Yes this picture is the special bolt for the forward oil line comming off the engine. Marty K.
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From what i remember this special hex head bolt with the JIS or #3 phillips type screw driver head. This special bolt was closer inline with the frame tube making it more difficult to install/remove with a socket. A JIS or #3 phillips works nicely.
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From what i remember this special hex head bolt with the JIS or #3 phillips type screw driver head. This special bolt was closer inline with the frame tube making it more difficult to install/remove with a socket. A JIS or #3 phillips works nicely.
Thank you because I had not seen this answer...