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Engine mounts

Technical help for Series one, two and three Lambrettas. Models include the Li, Li Special, TV, SX, GP, Serveta and API/SIL models

Engine mounts

Postby Andyf » Tue Jun 04, 2019 8:00 pm

I've often grumbled through gritted teeth about my innate ability to buy rubbish engine mounts, I seem to have to change them much too regularly. Is it likely that I may have been a contributor to the problem by over tightening the nuts on the engine bolt thus causing the rubber to handle the rotation instead of the mounts rotating on the bar? If so, how does one know when to stop tightening?
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Re: Engine mounts

Postby Sticky » Tue Jun 04, 2019 8:21 pm

The rubber is supposed to handle the rotation. Bar cones and centre tubes supposed to be rigid.
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Re: Engine mounts

Postby Andyf » Tue Jun 04, 2019 8:38 pm

Thank heavens for that, it is my fault then. :oops:
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Re: Engine mounts

Postby HxPaul » Tue Jun 04, 2019 9:32 pm

Make sure you lift the back of the engine onto the shock absorber before tightening the nuts on the engine bar.If you tighten them before you lift the back of the engine the rubber will be rotated and they will ware quickly.
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Re: Engine mounts

Postby Sticky » Tue Jun 04, 2019 9:38 pm

HxPaul wrote:Make sure you lift the back of the engine onto the shock absorber before tightening the nuts on the engine bar.If you tighten them before you lift the back of the engine the rubber will be rotated and they will ware quickly.


Good tip that
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Re: Engine mounts

Postby Andyf » Wed Jun 05, 2019 11:52 am

+1
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Re: Engine mounts

Postby lam1962brettagg » Thu Jun 06, 2019 7:48 am

I always use chrome plastic car tow hook covers to protect against contaminates ie petrol oil etc. had my mounts in now 15 years. still as good as new.
hope you get em soted
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Re: Engine mounts

Postby Toddy » Thu Jun 06, 2019 12:13 pm

lam1962brettagg wrote:I always use chrome plastic car tow hook covers to protect against contaminates ie petrol oil etc. had my mounts in now 15 years. still as good as new.
hope you get em soted


What sort of mileage per year do you do ?
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Re: Engine mounts

Postby nickw » Thu Jun 06, 2019 6:59 pm

lam1962brettagg wrote:I always use chrome plastic car tow hook covers to protect against contaminates ie petrol oil etc. had my mounts in now 15 years. still as good as new.
hope you get em soted


I tried these and ended up with chrome flakey bits all over one side of the scooter where the petrol had spoilt the cover. I must remember to find another pair that aren't chrome.
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Re: Engine mounts

Postby lam1962brettagg » Fri Jun 07, 2019 7:54 am

never had chrome flecks coming off at all.
did a few thou miles every year. no probs.
get good quality tow hooks and make sure they fit snuggly and dont move or spin.
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Re: Engine mounts

Postby nickw » Fri Jun 07, 2019 12:08 pm

lam1962brettagg wrote:get good quality tow hooks and make sure they fit snuggly and dont move or spin.

That will be my problem. Cheapest from ebay. Gonna order some black one's now, cheers
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Re: Engine mounts

Postby Andyf » Sat Jun 08, 2019 6:00 pm

lam1962brettagg wrote:never had chrome flecks coming off at all.
did a few thou miles every year. no probs.
get good quality tow hooks and make sure they fit snuggly and dont move or spin.



>1000m!!!! I'm definitely using crap ones. Will buy SIL next time methinks, I've heard they're decent.
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Re: Engine mounts

Postby gaz_powell » Sun Jun 09, 2019 8:28 am

Before the rake of so called high end and crap unbranded mounts all we had were SIL.
They do the job adequately and have always been my choice in any type of motor. I've used UNI and found them to be good aswell.
They both seem to have the right balance of ride comfort and longevity.
SIL from Scooter Restorations or UNI from AF both about 20quid a pr.
I always use covers on the mounts with open mouth carbs aswell.
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