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1.5 roller rockers


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#1 bullmini

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Posted 01 July 2007 - 05:26 PM

just a quick question got a stage 3 head on my car [ 1275 cooper carb version ]with double valve springs standard cam can i put 1.5 rollers straight on or do i have to change anythink [ push rods ect] and also how do u set them up as i have some but am not sure what im doing please help thanks

#2 biggav

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Posted 01 July 2007 - 05:29 PM

you can just whack em on and check the clearances i think. I had a cracking set of Keith Dodds somewhere but i'll be chuffed if i can find them!!!

#3 bullmini

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Posted 01 July 2007 - 05:38 PM

you can just whack em on and check the clearances i think. I had a cracking set of Keith Dodds somewhere but i'll be chuffed if i can find them!!!

thanks mate do i use the rule of 9 and also what gauge feeler do i set them at ?

#4 biggav

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Posted 01 July 2007 - 05:43 PM

same as usual i think

#5 Bungle

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Posted 01 July 2007 - 05:57 PM

check the valve springs don't crush on fully down

#6 bullmini

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Posted 01 July 2007 - 06:06 PM

check the valve springs don't crush on fully down

whats the best way around this slack them all off to start with ?

#7 bullmini

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Posted 01 July 2007 - 06:09 PM

if it helps there from a john cooper 90bhp kit both head n rockers any 1 know what there worth not important just wonderd

#8 Bungle

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Posted 01 July 2007 - 06:18 PM

check the valve springs don't crush on fully down

whats the best way around this slack them all off to start with ?


fit rockers set tapets and push car in 4th and watch the valve springs

if the coils touch then you need different springs

to fit the rockers properly you need to change the head gasket (some times you get lucky and don't) so while the head is off you could buy the right springs any way

a good mini parts supplier should be able to sell you rockers and matching springs




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