1.7 prop rattle (very)

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CBA
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1.7 prop rattle (very)

Post by CBA » 01 Mar 2013 06:18 pm

What parts are needed to get rid of the lash+play at the *front end of the prop? Mine is paticularly rattly.

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jon-ovlov
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Re: 1.7 prop rattle (very)

Post by jon-ovlov » 01 Mar 2013 08:28 pm

When mine did that, it was closely followed by failure. On mine the splines ended up rounding an eventually wore through. Whip the prop off and check the splines. If they are worn, itll be new prop time.
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Ride_on
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Re: 1.7 prop rattle (very)

Post by Ride_on » 03 Mar 2013 02:03 pm

It should be locked up solid against the engine through the clutch. The only part that should have free play is the clutch on the clutch shaft. The prop clamp must be rock solid.

Are the clutch take-up springs all intact?
1980 345 DL_______1987 360 GLE (project car restored to GLT spec and B230FT'd)
1984 360 GLT______1987 360 GLT
1983 360 GLS______1989 360 GLE
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1985 360 GLS______1995 940 SE 2.3 Turbo Estate (daily)
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Chris_C
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Re: 1.7 prop rattle (very)

Post by Chris_C » 03 Mar 2013 04:41 pm

There should be zero lash. Rattles are normally caused by knackered output shaft bearings at the front (which are rubber mounted, I've not managed to find a supplier so far)
'89(G) 340 GLE B172k
'03 S60 D5 SE, '91 (J) MX5, 1954 Cyclemaster
Ex:
'89(F) 340 GL F7R (ex B172k) - Fake -> SBKV 300 Runner Up 08, 12; '91(H) 340 GL B14.4E - Kar; '88(F) 360 GLT B200E - Jet -> BKV 300 Runner Up 09; '89(G) 360 GLT B200E - Beast

CBA
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Re: 1.7 prop rattle (very)

Post by CBA » 04 Mar 2013 04:10 pm

output shaft bearing.... pretty sure that's causing the rattle+lash: circular motion of prop(front) is not circular, has up-down/left-right rattling.

CBA
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Re: 1.7 prop rattle (very)

Post by CBA » 04 Mar 2013 04:14 pm

*prop's ability to move off center feels like lash to me, it baulks in gear and you hear the knocks as the prop/bearing/etc bashes around.

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Chris_C
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Re: 1.7 prop rattle (very)

Post by Chris_C » 04 Mar 2013 06:16 pm

There is a pair of them. Standard bearings mounted in a rubber case that's moulded to the outside. I've been told that the rubber casing is an industry standard, but no one can find me a reference.

If you can suss out the shore rating of the rubberlike substance then casting your own around a new bearing would be a sexy approach.
'89(G) 340 GLE B172k
'03 S60 D5 SE, '91 (J) MX5, 1954 Cyclemaster
Ex:
'89(F) 340 GL F7R (ex B172k) - Fake -> SBKV 300 Runner Up 08, 12; '91(H) 340 GL B14.4E - Kar; '88(F) 360 GLT B200E - Jet -> BKV 300 Runner Up 09; '89(G) 360 GLT B200E - Beast

CBA
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Joined: 24 Mar 2010 02:14 am

Re: 1.7 prop rattle (very)

Post by CBA » 17 Mar 2013 06:19 am

I'll do it in course, sounds easy. There's a dozen engineering shops round here.

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