Avoneer
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| posted on 21/10/07 at 01:37 PM |
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Prop Adaptor keeps coming loose
Anyone any experience of these coming loose?
Mine keeps getting a sligh wobble on it.
Is it possible for the splines of the adaptor to actualy wear requiring a new one as each time i've removed it and re-tightened up the central
nut FT.
Pat...
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However a large number of electrons were terribly inconvenienced.
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daviep
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| posted on 21/10/07 at 02:46 PM |
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In answer to your question then yes if it runs slack for any length of time something will wear.
If it keeps coming loose I would be having a look at the output shaft. If it's been run loose the face may be damaged. If the the face which the
adaptor clamps against is not flat and clean then you'll never keep the adaptor clean.
Are you using the correct tab washer or correct grade of loctite? How tight is FT?
Just mt 2p's worth
Davie
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ReMan
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| posted on 21/10/07 at 04:53 PM |
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Save my typing, check this link....
http://www.locostbuilders.co.uk/viewthread.php?tid=27604
Any help?
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smart51
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| posted on 21/10/07 at 05:00 PM |
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mine came loose because the tabbed lock washer won't fit in. I used threadlock and it seems OK now.
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Avoneer
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| posted on 21/10/07 at 07:11 PM |
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Mine is different from the scenario mentioned above as the prop adaptor is a couple of mm longer than the spline from the gearbox, so it doesn't
need spacing forward as when the central bolt is tight, the prop adaptor can't move back and forward as the bolt doesn't hit the end of
the gearbox splines.
The ony flat face is where the end of the prop bolts onto the prop adaptor with 4 M8 bolts and these have never come loose.
It's just a faf to undo all 4 to get to the nut hiding behind the end of the prop.
The 1st time, the bolt came loose and I think this may have caused the splines in the prop adaptor to wear slightly (as they are probably much softer
than the gearbox splines).
I guess I'll have to take the prop off again and see how it looks when the central bolt is tight again.
The only other thing is that because the prop adaptor sticks out a couple of mm further than the gearbox spline, when I tighten up the bolt, is
concaves the washer every so slightly - would this effect things? Do I need a thicker washer?
Pat...
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However a large number of electrons were terribly inconvenienced.
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bigrich
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| posted on 21/10/07 at 09:09 PM |
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Pat the problem is probably due to the adaptor being longer than the spline, the washer will distort when tightened and evetually come loose i would
have it machined to a flush finish then retorque to spec using a loctite type product
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A pint for the gent and a white wine/fruit based drink for the lady. Those are the rules
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Avoneer
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| posted on 21/10/07 at 09:33 PM |
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Do MAC#1 have a laithe?
Need a few other little bits doing as well.
Removing my grill worked as well - didn't get the water temp over 100 at Rockingham.
Pat...
No trees were killed in the sending of this message.
However a large number of electrons were terribly inconvenienced.
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bigrich
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| posted on 21/10/07 at 09:42 PM |
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used to have one, its on the list of thing to replace i think post fire rebuild etc they currently farm out these jobs to a very nice man.
A pint for the gent and a white wine/fruit based drink for the lady. Those are the rules
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ChrisGamlin
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| posted on 22/10/07 at 08:42 PM |
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Dont get it machined completely flush, you do want it very slightly proud of the output shaft so it all nips up tight with no movement along the
splines.
I only had mine come loose once, but a bit of locktite sorted it out.
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Avoneer
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| posted on 22/10/07 at 10:12 PM |
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Did you use a big fat washer on the nut as a pose to a normal repair washer type?
Pat...
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However a large number of electrons were terribly inconvenienced.
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ChrisGamlin
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| posted on 23/10/07 at 11:33 AM |
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Yep I think so, it was the original Honda bolt. Was the bolt / washer not in the end of the output shaft when I sold you the engine?
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Avoneer
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| posted on 23/10/07 at 06:51 PM |
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Hi Chris,
I can't remember.
I think I got the sprocket adaptor off you a few months later and the engine came with the chain sprocket and bolt with small washer.
No other problems though and still no complaints about the engine ;-)
I think I'll just fabricate a 3mm thick jobber!
Pat...
No trees were killed in the sending of this message.
However a large number of electrons were terribly inconvenienced.
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andrew.carwithen
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| posted on 24/10/07 at 09:08 AM |
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I bought the bolt and washer from a local Honda dealer.
I think it cost a couple of pounds or so...
The washer was definitely a thicker item than a 'standard' washer.
Andy.
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carlgeldard
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| posted on 24/10/07 at 08:41 PM |
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You need to sort it Pat. Just look what happened to Tim Hovard
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Guinness
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| posted on 24/10/07 at 09:56 PM |
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Just read about Tim's car. Gutted for him.
Reminder to self, get out to the garage tomorrow and check all my nuts are tight.
Mike
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ChrisGamlin
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| posted on 25/10/07 at 07:10 PM |
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Sad to see his car end up like that but I must say his comments regarding the incident at Spa disappoint me. Speaking to him in person on the day he
seems like a nice chap but it does appear that he could do with losing a bit of the "racer on a trackday" bravado when safely behind a
keyboard and be a little more diplomatic with his comments about other people's misfortune. I know for a fact that his version of the event at
Spa with the Westie spinning are rather different to what he's trying to portray, but hey ho.
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