Volvo 480 Club Europe

Hi,
I need urgently the theottle brass screw that adjusts the idle. It's for a 91 turbo.

Anyone has one that can sell?
Cheers

Part number is 3344818 (no longer available, surprise, surprise)‎. Parts book has this used on the 2.0 cars too so that should widen your search a bit. 

gsa60 wrote: ↑

Sun Jan 13, 2019 3:57 pm

Hi,
I need urgently the theottle brass screw that adjusts the idle. It's for a 91 turbo.

Anyone has one that can sell?
Cheers

Do you know the thread pattern? it is likely metric ?

or which one is it on the two litre and i can have a quick look if that helps then but a box of twenty from Screwfix

Turbo, item 3:‎
‎

B20, item 3
‎[url=https://postimg.cc/TKTCNHpk]
‎

cheers

might be the week-end cos it's dark when i get home and car is outside, and don't fancy dropping the ruddy thing then having to explain to SWAMBO why the car is 'off the road'

Hi
Maybe I can help you , have 1.7 Turbo and 2.0 engines for spares .
Marek

If this #3 is indeed the screw you're worried about, just use anything to plug the hole. There's no use for it. Let alone for adjusting idle.

Robou wrote: ↑

Wed Jan 16, 2019 11:13 pm

If this #3 is indeed the screw you're worried about, just use anything to plug the hole. There's no use for it. Let alone for adjusting idle.

Given this post are you still needing a blanking screw? I got sort of distracted today with drive shaft issues

Yep, PM sent

BTW,
Robou: pluging the hole from the outside (and not between the manifold and the intake pipe) a high reving engine. Pluging the hole between the intake manifold and the intake pipe, leads to low idle.
Cheers

gsa60 wrote: ↑

Sun Jan 20, 2019 2:28 pm

Yep, PM sent

well I had a look this evening (under flood light, so not as good as day light) and I can't see any screw that is on the back of the throttle body pointing forward!!!

there is a small 'item' that is covered with a plastic fitting and an aluminium 'clip' but it is maybe a throttle stop (I THINK) but it runs from left ot right
the screw (if it is a screw ) might be threaded in from the engine side and goes towards the air filter

I lost my idle screw this summer, turns out it's the same as in a Porsche 944
Porsche code is 951.110.919.00
https://www.paragon-products.com/Idle-S ... 919.00.htm

Gmac34 wrote: ↑

Tue Jan 29, 2019 2:36 pm

I lost my idle screw this summer, turns out it's the same as in Porsche 944
Porsche code is 951.110.919.00
https://www.paragon-products.com/Idle-S ... 919.00.htm

Brilliant!

the original Volvo one that I found after a while on the side of the road...

I replaced with a new one anyway as I wasn't able to find a correct size O-ring and the old one was the reason it was loose in the first place.

BTW I think this indeed has an effect on the idle, The ICV is making the fine work of course, but I think it is still good to follow this procedure:
viewtopic.php?t=19073

Check the idle speed and adjust the basic setting
Move the idle speed regulating valve to the basic setting by earthing the cable* in the test point near the crankcase ventilation.
*B18F: brown/green; B18FT: brown/grey.
-Switch off the airconditioning and wait until the thermostat is fully open and the cooling fan has switched itself off.
-The idle speed should then be 11.7 r/s (700 r/min); adjust, if necessary, with the adjusting screw on the front of the TB. (brassy - gold colour)
-Remove the earth connection from the test point.
-The idle speed should then increase to 13.3 r/s (800 +-25 r/min).

In my understanding, it lets the ICV work in the correct range and it made quite a difference (for the better) to do it this way instead of just screwign it in all the way, mostly noticeable while parking as the engine revs would not dip down that much