bleed valve help, still not enough boost
Turbo Mini Forums

my bleed valve stopped bleeding at 12 psi what would it be? ive got a escort t3 actuator

cheers eden

Edited by eden7842 on 13th Jul, 2011.

13.95 1/4 mile on a 2.95 fd. Carnt be that hard to beat!

You need a restrictor in the actuator feed.

Put it in the feed pipe before the bleed valve. I find a 1.5mm one works well.

Be warned though, it will cause a slight spike in your boost as it ramps up. I run 12psi, but see 15 occasionally as the boost ramps up and the restrictor dosent enable the actuator to move quick enough.

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

Or use smaller ID pipe. Works on mine.

In the 13's at last!.. Just

would some sort of crimp in the pipe do the job?

13.95 1/4 mile on a 2.95 fd. Carnt be that hard to beat!

Yes a crimp would work, but it would be difficult to control how big the or small you make it.

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

use a jubilee clamp. then you can tighten it a bit at a time until it works as you want.

Ok i will try that,

why does it need to have this?

13.95 1/4 mile on a 2.95 fd. Carnt be that hard to beat!

should this resrictor make the pipe bore 1.5 mm ?

13.95 1/4 mile on a 2.95 fd. Carnt be that hard to beat!

so ive tried putting a bike spoke nipple in the feed pipe to the bleed valve and still no more that 12psi,

if wen i fitted the actuator i didont set the preload properly would this cause the problem?

sorry to be a doosh, for some reason the actuator goes over my head

cheers

13.95 1/4 mile on a 2.95 fd. Carnt be that hard to beat!

anyone? please

13.95 1/4 mile on a 2.95 fd. Carnt be that hard to beat!

Try some more preload. Half a hole is around standard.

In the 13's at last!.. Just

Before we put a restrictor inline on the van we could only manager 8-9psi. We have found that an old dizzy vac pipe has an OD of 3mm and an ID of 1.5mm. Slots nicely in the vac hose before the bleed valve (we have clamped the pipe down to make sure the bit of hose doesn't slip into the bleed valve) and we can now get 17psi with 1 full turn on the bleed valve.

If something is worth doing, it's worth doing half of.

ah well my spoke nipple has done about the same job with no diffrence, i think its my preload, i just havent had time to look at it yet, i will let you know how i get on

13.95 1/4 mile on a 2.95 fd. Carnt be that hard to beat!

put a narrower restrictor in it pre-avon John boy. 17 psi is not enough

ok so ive checked my preload (all fine) got a tiny restrictor in (1-1.5 mm) ish and still on 12ish psi.

ive got one of those stupid brass bleed valves. could this be a problem?

13.95 1/4 mile on a 2.95 fd. Carnt be that hard to beat!

As a test you could pull the hose off the actuator and then go for a quick run. Build the boost and see if you can get over 12psi. If so then its down to either your restrictor not being small enough or your bleed valve.

If it doesn't go about 12psi it's likely that your wastegate is being pushed open by exhaust pressure and that your actuator spring isn't strong enough to hold it shut.

EDIT: BE CAREFUL NOT TO LET THE BOOST GO BONKERS OR YOU MAY MULLER YOUR ENGINE.
THIS IS AT YOUR OWN RISK, I TAKE NO RESPONSIBILITY FOR THIS.

Edited by John on 13th Jul, 2011.

If something is worth doing, it's worth doing half of.

thanks john,

well ive just broke my shitty bleed valve so ive borrowed 1 and im just going to see what happens, will try your idea if its the same.

will update in 15mins

13.95 1/4 mile on a 2.95 fd. Carnt be that hard to beat!

ok john, been down the road dun what you said and it looks like the actuators not strong enough, its a escort t3 one,

what the best way to get boost now without spending loads of money?

cheers

13.95 1/4 mile on a 2.95 fd. Carnt be that hard to beat!

get a better actuator cheaply? lol

I'm sure you can find them cheap enough.

Edited by John on 13th Jul, 2011.

If something is worth doing, it's worth doing half of.

Expensive!?

http://cgi.ebay.co.uk/FORD-ESCORT-RS-TURBO...=item19c6834a58

http://cgi.ebay.co.uk/31-actuator-turbo-ra...=item3f0b9bbd2d

Pedro Silva

http://miniciados.blogspot.pt/

Wind the pre load up and try again.

yeah cheap as im going on my hols next week and im skint!

il try some more preload 1st

13.95 1/4 mile on a 2.95 fd. Carnt be that hard to beat!

more preload has given me 15ish psi so that will do for now. then il find another to give me that extra 5-7 psi

mental note ''enrich-en mixture''

13.95 1/4 mile on a 2.95 fd. Carnt be that hard to beat!

What turbo is it?

If something is worth doing, it's worth doing half of.

the good old t3

13.95 1/4 mile on a 2.95 fd. Carnt be that hard to beat!