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Author Topic: Crankshaft seal CB750F2  (Read 1075 times)

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Offline jtb

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Crankshaft seal CB750F2
« on: July 31, 2006, 07:18:03 PM »
I'm finally assembling my F2 engine, but ground to a halt when I unpacked the oil seal that goes behind the spark advancer.  Does the metal part face the spart advancer, as I think it should?

John
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1986 VFR 750 (gone but missed greatly)

Offline MRieck

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Re: Crankshaft seal CB750F2
« Reply #1 on: July 31, 2006, 07:51:32 PM »
Quote from: jtb on July 31, 2006, 07:18:03 PM
I'm finally assembling my F2 engine, but ground to a halt when I unpacked the oil seal that goes behind the spark advancer.  Does the metal part face the spart advancer, as I think it should?

John
Yes John.
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Offline MRieck

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Re: Crankshaft seal CB750F2
« Reply #2 on: July 31, 2006, 07:52:34 PM »
Grease it up a bit too....the inside ;)
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Offline jtb

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Re: Crankshaft seal CB750F2
« Reply #3 on: July 31, 2006, 07:54:11 PM »
Thanks, Mike.  I'll let you know how it goes. :D :D :D
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Offline MRieck

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Re: Crankshaft seal CB750F2
« Reply #4 on: July 31, 2006, 07:57:08 PM »
Thanks John....I've been wondering how it has been going. ;) ;D
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Offline jtb

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Re: Crankshaft seal CB750F2
« Reply #5 on: July 31, 2006, 09:09:38 PM »
 Got the cases glued together, pistons, cylinders and head all together.  Shift linkage is installed, and runs up and down through all 5.  Just put in the final drive seal and the crankshaft seal on the right side.  The starter is installed.  Cam and rockers tomorrow.

John
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1985 V65 Sabre
1986 VFR 750 (gone but missed greatly)

Offline bryanj

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Re: Crankshaft seal CB750F2
« Reply #6 on: August 01, 2006, 03:30:37 AM »
I thought the crank seal had a lip on it that goes into a groove before you bolt up the cases? (same on sprocket seal)
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Semi Geriatric ex-Honda mechanic and MOT tester (UK version of annual inspection). Garage full of "projects" mostly 500/4 from pre 73 (no road tax in UK).

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Offline jtb

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Re: Crankshaft seal CB750F2
« Reply #7 on: August 01, 2006, 04:57:42 AM »
SH*T!  No lip on sprocket seal.  If so, then the metal part of the crankshaft seal goes to the inside.   I think you're right, Bryan.  :-[
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1986 VFR 750 (gone but missed greatly)

Offline MRieck

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Re: Crankshaft seal CB750F2
« Reply #8 on: August 01, 2006, 05:08:38 AM »
John
  Byran is correct. Those seals have to be on the shafts before the cases are put together. Plus I just read my initial response and I f'd up. The rubber always faces the outside on all seals. I apologize!!
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Offline bryanj

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Re: Crankshaft seal CB750F2
« Reply #9 on: August 01, 2006, 07:08:53 AM »
Kike Dont fret my old boss always said "the only persone who makes no mistakes is the one that does nowt!" Talked to dennis this week, hopefully you will have a 500 head soon
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Semi Geriatric ex-Honda mechanic and MOT tester (UK version of annual inspection). Garage full of "projects" mostly 500/4 from pre 73 (no road tax in UK).

Remember "Its always in the last place you look" COURSE IT IS YOU STOP LOOKIN THEN!

Offline bryanj

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Re: Crankshaft seal CB750F2
« Reply #10 on: August 01, 2006, 07:09:52 AM »
OK Milke, now its my turn ! God knows where the spell check got the wrong name from!!
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Semi Geriatric ex-Honda mechanic and MOT tester (UK version of annual inspection). Garage full of "projects" mostly 500/4 from pre 73 (no road tax in UK).

Remember "Its always in the last place you look" COURSE IT IS YOU STOP LOOKIN THEN!

Offline jtb

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Re: Crankshaft seal CB750F2
« Reply #11 on: August 01, 2006, 09:19:00 AM »
Just ordered 2 new seals.  I hope I can get by with just splitting the cases. :-\
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Offline MRieck

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Re: Crankshaft seal CB750F2
« Reply #12 on: August 01, 2006, 12:02:54 PM »
All you have to do is split the cases John. No need remove the clinders or head. Remove the top case bolts first, flip the engine over, remove the bottom bolts and pull the lower off. You will have to clean off the sealer but it could be worse. Seeing how you have already put the cases together once you should be able to reassemble them twice as quick! ;)
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Offline MRieck

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Re: Crankshaft seal CB750F2
« Reply #13 on: August 01, 2006, 12:04:41 PM »
Quote from: bryanj on August 01, 2006, 07:09:52 AM
OK Milke, now its my turn ! God knows where the spell check got the wrong name from!!
That's funny Bryan. Sure...just let me know about the head (no rush).
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