2wd cosworth engine question
#1
2wd cosworth engine question
hi all; not sure if ive posted in the right place, but hey ho
i bought a 2wd sapphire cosworth on a G plate about 3 months ago, i'm new to cosworths so my knowledge isnt great
The engine has done 60k and its never been rebuilt, its running stage 3. (350bhp ish)
now when i start the engine up from cold it sounds really rough, now is this piston slap? once i've driven the car for 10 mins - 15 mins the noise has virtually gone
the car also uses a bit of oil, is that common with cossies? or is this a sympton of something else?
if it is just piston slap, should i be overly worried? i havent got the money at the moment to get the bottom end rebuilt
any help appreciated
Cheers, Terry (a worried owner!)
i bought a 2wd sapphire cosworth on a G plate about 3 months ago, i'm new to cosworths so my knowledge isnt great
The engine has done 60k and its never been rebuilt, its running stage 3. (350bhp ish)
now when i start the engine up from cold it sounds really rough, now is this piston slap? once i've driven the car for 10 mins - 15 mins the noise has virtually gone
the car also uses a bit of oil, is that common with cossies? or is this a sympton of something else?
if it is just piston slap, should i be overly worried? i havent got the money at the moment to get the bottom end rebuilt
any help appreciated
Cheers, Terry (a worried owner!)
#2
PassionFord Post Whore!!
sounds like most cossies mate,i didnt need to rebuild mine till over 100k.
Lots use a bit of oil too,but ome dont,could be losing it down the breather(if it has one),loads of places ,just keep an eye on it.
Lots use a bit of oil too,but ome dont,could be losing it down the breather(if it has one),loads of places ,just keep an eye on it.
#3
Engine Machinist
iTrader: (1)
hi, welcome to passionford
piston slap is not uncommon in 2wd cossies, neither is using oil . fortunately, there's not anything to really worry about, unless you get fed up with a constant loss oil system
just enjoy it until it goes bang , you can sort the problems out after then
piston slap is not uncommon in 2wd cossies, neither is using oil . fortunately, there's not anything to really worry about, unless you get fed up with a constant loss oil system
just enjoy it until it goes bang , you can sort the problems out after then
#4
Did Someone Mention TUV
iTrader: (1)
Hi Terry,
Piston slap on 2wd is common due to the gudgeon pin design in the piston. Once the piston has warmed up and expanded slightly in the bore the noise as you say goes away. Nothing to be concerned about. Oil consumption should be around the 1 litre mark per 1000 miles. If it is a lot more than that, then you like every other cosworth owener will need to start thinkng about an engine refresh/rebuild.
Dont let cossie paranoia ruin your fun. I would aslo recommend you get the car to an expert to have fueling and boost checked. Unless you 100% sure the person you bought it off had it setup correctly.
Piston slap on 2wd is common due to the gudgeon pin design in the piston. Once the piston has warmed up and expanded slightly in the bore the noise as you say goes away. Nothing to be concerned about. Oil consumption should be around the 1 litre mark per 1000 miles. If it is a lot more than that, then you like every other cosworth owener will need to start thinkng about an engine refresh/rebuild.
Dont let cossie paranoia ruin your fun. I would aslo recommend you get the car to an expert to have fueling and boost checked. Unless you 100% sure the person you bought it off had it setup correctly.
#6
PassionFord Post Whore!!
iTrader: (2)
Sound advice from Rich there.
I agree, try not to worry too much about things, it ruins driving it imo, as I worried about EVERYTHING on my Cossie for a little while, found I didnt really enjoy it beacuse of this.
Obviously keep an eye on the essentials, such as oil/temp/leaks etc...
I agree, try not to worry too much about things, it ruins driving it imo, as I worried about EVERYTHING on my Cossie for a little while, found I didnt really enjoy it beacuse of this.
Obviously keep an eye on the essentials, such as oil/temp/leaks etc...
#7
I've found that life I needed.. It's HERE!!
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Yep i had a 40000 mile 2wd with piston slap had only just got into the rs scene so i took the car to harvey gibbs as i thought the worst his words was i can rebuild it but theres no need as being 2wd it will sound the same in 20000 miles and i think the ford booklet that came with 2wds also says about piston slap
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#11
14000+ post superhero
my old 2wd celica used to smell like that from behind. strangely enough its because id fitted a 2wd cossie engine into it
#15
Testing the future
good advice already, but also get the chip/fuelling checked as lot of stg 3 chips overfuel like hell and contribute heavily to bore wear and oil consumption
#16
thanks for all the replies guys; that has put my mind at ease somewhat, i didnt realise all cossies burn that much oil
needless to say i might enjoy it a bit more now, and wont worrk too much about giving it some stick
at least the bottom end rebuild can wait
needless to say i might enjoy it a bit more now, and wont worrk too much about giving it some stick
at least the bottom end rebuild can wait
#17
Colossal Pervert
He said it sounds rough - could be anything! Could be say the coolant temp sensor playing up at lower temps making it run rough, but sorted when warm.. or could be the chip.. s'not necessarily something mechanical!
#25
Super Moderator
iTrader: (5)
the later sapph engine did but not the normal sapph
the 3 door block is identified by the 205 being small
the proper sapph bloch has a larger 205 on it
the 3 door head has a 2 bolt head where the stat bolts the sapph head has a 2 bolt stat housing but with a 3 bolt head
rs500 head is 3 bolt stat and 3 bolt head.
later 2wd heads had the closed water ports 1990 spec
these are the obvious differences the true way to identify the heads is the casting number on the front.
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