just fitted my saph engine into my 3 door. it was sweat when in my saph but now it's in my 3 door there is a rattle.
it only rattles when pressing the throttle. does'nt rattle on idle, does'nt rattle if i hold the rev's at 3000, 4000, or 5000rpm. only rattle's when putting my foot down.

what i've done since swapping engine.
cleaned engine
fitted new group a head gasket
remove 1 big end cap and 1 main's cap to check the size of crank and torqued back up.

i've had a problem with starting it as had the fuel pipes round the wrong way.
the only thing i can think of is that i turned it over that much it's done some damage.??

what do you think it will be??

 

anyone had a noise the same??

 

doubt you would of damaged it by turning it over mate!!possiable lifters just need time to settle down?

 

If you turned the car over and over the fuel will find its way into the sump and thin the oil and wash the shells, i doubt you have done this as you had the fuel lines back to front.
are you 100% you put the caps back without any dirt on the shells?.

 

Just what I was thinking, how long has the engine been sat? My car doesn't get used very often so on start up for the first minute or 2 my lifters are noisy but my car does sit for weeks on end without being started. Get it warm and it should go away.

 

a rattle which is heard only when revving the enging (under load) is normally a worn or damaged big or little end.

 

use a engine beam take sump and beam out and re check the big ends and mains

 

Damaged big end causes a rattle on over run doesn't it?

 

i've changed the lifter's as i have lots of spares and it's still the same

 

yeah 100% as i've built a couple of engines without a fault.

 

if it's a bearing problem i think i will build a fresh engine up as i have 2 in bit's. lol

 

if you need out mate giz a shout i have most things in stock

 

ok mate

does this noise sound like a bearing problem?? either little end, big end or mains?

 

its usuall little ends mate but we have little tool to listen to where its coming from my advice would be build a motor from parts and change it over when its done

you havnt got a 200 block have you

 

it sounds like mine did and it was the little ends,sounded sweet as a nut until you touched the throttle

 

unplug the ht lead off of the cyl that you checked the big end bearing on.

now rev the engine.

i know it will misfire but has the noise gone??

by unplugging the lead it will take the load off of that cylinder.

 

woodford garage recon little ends dont go on cosworths lol

 

that doesnt work lol well it never on mine

 

news to me. i've done that way for years and never had a wrong diagnosis yet.

 

can't really hear it when just revving. it's when you driving the car.

 

just out of interest you 100%sure your timing is correct?

 

i would say 99% mate. i've timed up a fair few now.

 

definatly when engine is on load then. must be big or little end.

can't think of anything else it could be.

little end sounds like a tappet, very light noise.

big end sounds alot deeper.

 

fair enough fella as it will knock if ya timing is out when you rev it!might be worth checking all 3 parts are timed up

 

little ends make a noise when you have revved it up and then taken your foot of the throttle.

 

i will check again mate thanks

 

it's sounds deeper than a tapper. more like a knock, so must big big end?

 

could still be a little end, mine was a quite bad knock and was little ends.

 

i was going to say if its a rattle more likely to be a little end but if its bottom its usually a knocking imo.if it has picked up on one you will probably get away with having the crank polished if you haven't deathed it.new set of shells and all should be fine.

 

Check the oil spray jets are'nt catching the crank, there is'nt to much clearance and it's easy to have disturbed them if you've been working on the bottom end, I made that mistake once and it does sound like a big end rattle!!.
Cheers, Paul T.