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Author Topic: copper washers and domed nuts on F2 heads  (Read 546 times)

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Offline mazingerzeca

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copper washers and domed nuts on F2 heads
« on: April 08, 2014, 11:52:19 AM »
Hello all.
I've searched through the forum and I'm a bit confused.
I am reassembling an CB750 F2 engine and I have 4 copper washers and 4 domed nuts for the cylinder studs. I've read that these ones go on the 4 studs which are closer to the cam chain tunnel (which should be 1, 2, 3 and 4 on my picture), but in other post I've read that are 5, 6, 7, 8 in the tightening sequence (my picture is the tightening sequence  from the factory book). So, could you light a candle? Which are exactly the studs in which I should put the domed nuts and copper washers according to my picture?
Thank you.
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Offline flybox1

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Re: copper washers and domed nuts on F2 heads
« Reply #1 on: April 08, 2014, 12:15:08 PM »
I'm at this stage of my build, too.
Per your picture, 5,6,7,8 are the correct ones.
You would have put o-rings on these studs before installing the cylinders.
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'78 750K (F3 engine) PD42b's, Modified airbox w/K&N  filter, 40/110 jets, 1 needle shim, IMS@ 1 turn out. Kerker + Cone 18" QuietCore

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1974 550K0 (stock), 1973 CB350F (stock), 1983 Yamaha XS400K (POS)
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Offline bytio

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Re: copper washers and domed nuts on F2 heads
« Reply #2 on: April 08, 2014, 12:47:53 PM »


Your picture is not the correct one this one shows the domed nut and copper washer position
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Offline flybox1

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Re: copper washers and domed nuts on F2 heads
« Reply #3 on: April 08, 2014, 12:55:53 PM »
hmmm...kinda looks like 5, 6, 7 & 8 to me  ???

Oh sorry, you were just pointing out his picture was wrong  ;D
« Last Edit: April 08, 2014, 01:47:37 PM by flybox1 »
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'78 750K (F3 engine) PD42b's, Modified airbox w/K&N  filter, 40/110 jets, 1 needle shim, IMS@ 1 turn out. Kerker + Cone 18" QuietCore

Past Bikes
1974 550K0 (stock), 1973 CB350F (stock), 1983 Yamaha XS400K (POS)
77/78 cool 2 member #3
"Knowledge without mileage equals bullsh!t" - Henry Rollins

"This is my CB. There are many like it, but this one is mine…"

Offline mazingerzeca

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Re: copper washers and domed nuts on F2 heads
« Reply #4 on: April 08, 2014, 02:51:31 PM »
Done. Thank you very much.
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