RSCossieGaz

iTrader: (6)

is there a small gasket that goes between the elbow part on a 2wd cosworth manifold? if not has anyone used sealent or anything like that ! also on the part where it bolts to the turbo? I ask this because there seems to be a slight blowing on my manifold and it appears to be coming from that area.

any info would be appreaciated

costina

iTrader: (1)

Burton Power sell a copper gasket i think

col cos1

iTrader: (5)

i was told it was a dry fit

you sure it doesnt only do this on start up (vaupor) until it expands once hot?

Micky The Finn

no gasket fitted here.

RWD_cossie_wil

iTrader: (9)

make sure it is perfectly flat on both faces, and it will seal a treat

Mr C

iTrader: (2)

never had gaskets on mine, does leak moisture from cold, not an issue when hot

Stu @ M Developments

iTrader: (12)

Use gaskets or paste at your peril.

RSCossieGaz

iTrader: (6)

ok cool i will give it a long run at w/end and see what happens,thanks for your input guys

rapidcossie

I welded mine after trying everything else.

Sure PF dave has a nice video of my car on the rollers with MASSIVE flames coming out of the elbow

RSCossieGaz

iTrader: (6)

rapidcossie

A leaking/blowin manifold is also loosing you alot of horsepower.

This is the reason my car only made 352 ATW at the AVA RR day that was in PF last year.

We were expecting it to make over 400 ATW.

RWD_cossie_wil

iTrader: (9)

Whys that stu just out of interest?

RSCossieGaz

iTrader: (6)

would like to know also

Niall.b

i got both faces machined to ensure good fit. u can get gaskets to fit (believe it or not try a tractor spares dealer) just depends how much it blows out

rapidcossie

Gaskets will be sucked in to the turbo if they fail

JTECH James

iTrader: (13)

also if you get a leak in the manifold and you have converted the car to run closed loop it goes completly tits,

JTECH James

iTrader: (13)

and bits of hard paste would too

best bet is to get a machine shop to skim the two surfaces

rapidcossie

I had this done but bolts that hold the elbow together kept coming out.

Had enough of it so just welded it for a proper fix

col cos1

iTrader: (5)

ive had all this sh@te tae,new proper nut and bolts from ggd sorted it

but as euan says a weld is probably best,solid as

costina

iTrader: (1)

Explain please

JTECH James

iTrader: (13)

the lambda sensor will detect more oxygen, and adjust the mixture accordingly, which will be completly wrong

in my experience , over 50% of cars that fail a cat test, are due to small exhaust leaks around the manifold area

rapidcossie

I used to get Massive flames from my tail pipe and I mean massive.

no flames now the mani is fixed.

JTECH James

iTrader: (13)

no oxygen now then euan

rapidcossie

final straw on the leaking manifold is when at 7500rpm in 5th on the local privat test track my oil light came on

After shitting a brick then chacking the SPA to see that oil press was fine I stopped and looked under the bonnet to see that the flames from the manifold had burnt straigh thru my heat sheild and half the wiring down the chassis leg, thus giving me hair wire dash lights

NEIL A

iTrader: (6)

Sounds like another mod to add to the ava worklist.

foreigneRS

i think you mean haywire

rapidcossie

sorry mate was trying to type while eating my lunch at the same time