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 Post subject: weird vibration
PostPosted: Mon Aug 22, 2005 7:24 pm 
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848cc
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Joined: Sun Apr 18, 2004 8:03 pm
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Location: Sandringham, vic
i have been getting a strong vibration through the whol car recently

i'm thinking it's one of the inner rubber uni things that is gone.
it's noticable on straight ahead acceleration, barely there on right hand turns
but verging on violent on left hand turns under acceleration. but is barely noticable on the left turns if your not on the gas.

i haven't been able to get it on the hoist yet to check it out properly.

it started after i did an oil change and put penrte hpr 50 in (too thick for winter, but i usualy use hpr 40 but couldn't get any at the time)
could this have done anything with the diff perhaps? or just a coincidence?

what do people think??

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Cheers Steve.

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1973 south african mk3, 1275 +30 (1300), RE13 cam, hif44, mildy worked head with s sized valves, pulsar dizzy, 1.5:1 minispares forged rockers.


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PostPosted: Mon Aug 22, 2005 7:29 pm 
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1275cc
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Joined: Sun Apr 04, 2004 7:36 pm
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Location: sydney
Where is the vibration coming from? If it's from the engine it could be an engine mount is lose, or needs replacing.. If it's your uni's the vibrations will probably be coming from underneith you.. your gear stick will vibrate like hell.


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PostPosted: Mon Aug 22, 2005 7:38 pm 
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848cc
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it comes through the whole car, mainly felt through the steering wheel when it's not so bad, but when it's real bad you have no hope of pinpointing it, it comes through everything. oh and it seems to be going at wheel speed.

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Cheers Steve.

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1973 south african mk3, 1275 +30 (1300), RE13 cam, hif44, mildy worked head with s sized valves, pulsar dizzy, 1.5:1 minispares forged rockers.


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PostPosted: Mon Aug 22, 2005 7:42 pm 
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Joined: Fri Mar 19, 2004 6:19 pm
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Location: near Baulkham Hills, NSW
HPR50 won't hurt the diff but it may make the primary gear drag on the crank. I tried it once and couldn't get gears when stopped. Too bloody thick, it's 40W/70... :shock:
Check the rubber donuts first but I doubt it.
It could be a C/V is dry, or (hope not) breaking up planet gears in the diff... as Baracade had. Is it making crunching noises?

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:


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 Post subject:
PostPosted: Mon Aug 22, 2005 7:51 pm 
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1098cc
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Joined: Fri Jul 15, 2005 8:13 pm
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Location: Bunbury/Barrow Island
I know this is a bit simplistic but it could be wheel alignment could it?


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PostPosted: Mon Aug 22, 2005 8:08 pm 
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848cc
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Location: Sandringham, vic
it has been hard to get gears, the first few changes from stationary. too expensive to change it to something thiner just yet.


it really is quite a violent vibration on left turns and accelerating.

there are no noises at all, no grinding, no crashing, nothing untoward in that regard.


wheel alignment/balance is way off unfortunately.

how much are disc brake cv's worth? ball park.

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Cheers Steve.

Image
1973 south african mk3, 1275 +30 (1300), RE13 cam, hif44, mildy worked head with s sized valves, pulsar dizzy, 1.5:1 minispares forged rockers.


Last edited by steveandsash on Tue Aug 23, 2005 5:51 pm, edited 1 time in total.

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 Post subject:
PostPosted: Mon Aug 22, 2005 8:14 pm 
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Location: near Baulkham Hills, NSW
CV is probably just dry. Wash it out, `recondition' it with a $14 kit... :wink:
New ones are $80- $120 ea.

:idea: Test. Put on full LH lock in a carpark, do some laps at full lock. Does it click? If so needs cleaning/greasing. Do both. :wink:

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:


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 Post subject:
PostPosted: Mon Aug 22, 2005 9:31 pm 
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998cc
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Joined: Wed Oct 06, 2004 7:26 am
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Location: Tannum Sands, QLD
That reminds me , I need to check mine, it's been clicking for a while on full lock, ahhh the joys of a car that's been on the road since I was 9 :lol: fix one thing and watch the next start to fail :lol:


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