Poly bushes

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george68
Newbie
Posts: 6
Joined: Mon May 21, 2012 9:34 pm
MMOC Member: No

Poly bushes

Post by george68 »

Morning all, I have gradually been refurbing my traveller and have arrived at the rattly suspension. I've read opinion after opinion on how wonderful poly bushes are if they are not too hard, ok I'm sold on that opinion but where can I find a supplier who specifies the shore(hardness) rating for their bushes. All the regular MM spares suppliers will sell me every bush I need but they do not specify the hardness of the product.
I've rebuilt the engine(ex Marina) with help from an A series specialist, it's now bored out to about 1310 cc. with polished ports and converted for unleaded fuel. The camshaft is a fast street cam and a T9 Sierra gearbox, front discs and Marina back axle, although it's only done 300 miles it is nice to drive(apart from the suspension). There's no vacuum connection on the HIF44 carb and only one tapping on the inlet manifold, do I need to connect the breather to the suction side of the engine?
Thanks. George 68.
Alex'n'Ane
Minor Legend
Posts: 1024
Joined: Fri Dec 18, 2009 5:06 pm
Location: Nottingham
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Re: Poly bushes

Post by Alex'n'Ane »

I believe jlh sell poly bush ones, they will have done the most thorough testing and comparison i would imagine. From other cars, i've found superpro bushes to be the best.
___Anne___

MarkyB
Minor Maniac
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Joined: Thu Jan 25, 2007 3:18 pm
Location: South East London
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Re: Poly bushes

Post by MarkyB »

Very interesting article about these in the latest Minor Matters.

"Once you break something you will see how it was put together"
george68
Newbie
Posts: 6
Joined: Mon May 21, 2012 9:34 pm
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Re: Poly bushes

Post by george68 »

Thanks for your replies folks, I have read all the letters in Minor Matters and the article by Howard Bentham and they all mention specialists but no names. I know from some of the items I've bought in the past have been of inferior quality but you can't always tell until they are in use. I see JLH as suggested may be the company to use as the name on the packaging in their advert has superflex on it.
Any thoughts on connecting the timing cover breather to the inlet manifold or straight to a catch pot?
Thanks.
bmcecosse
Minor Maniac
Posts: 46561
Joined: Wed Feb 16, 2005 11:24 pm
Location: ML9
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Re: Poly bushes

Post by bmcecosse »

All HIF carbs DO have a vacuum connection for the breather - you MUST use it!
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