924Board.org

Jakkq · Joined: 29 Sep 2008 Posts: 810 Location: Omaha, Nebraska

I recently replaced all the vacuum hoses, and I am pretty certain I did it correctly!
The car starts a lot better now, but it seems to be slugging when driving. It seem like it's not getting enough power? I start in 1st gear and throughout all the other gears once in awhile it'll do a small rock like it's about to die. This makes me think a hose is not connected correctly, and air is escaping or something, but they all seem just fine!

Suggestions?
_________________
1979 Porsche 924- Snailshell
http://porsche924workblog.blogspot.com/

9XX Girl! · Posted: Sun Nov 08, 2009 9:23 am Post subject:

hmmm.... I have asked this question before but it still remains un answered. Why have you Americans got so many vacuum hoses? Or are you just a big bunch of suckers or something?

on the UK cars the only vac pipes we have are: (if t remember correctly)
one thin one from close to the throttle butterfly to the advance/retard diaphragm on the distributer,
one medium one from the inlet manifold to power the brake servo and,
one big one from the fuel dizzy to throttle body ducting, to suck the fumes out of the crank case.

So Jakkq why don't you just scrap the lot other than these 3?

Can anyone throw some light on this?

_________________
924 (84) N/A 2 ltr - 5 Speed - BLACK - Project (looking for 200BHP, any ideas!)
924 (81) N/A 2 ltr - 3 Speed Auto - SURINAM RED (Metallic) - Near Original Spec (sticking with originality)
BOTH ON THE ROAD, BOTH USED EVERY-OTHER DAY

datatrain · Posted: Sun Nov 08, 2009 9:31 am Post subject:

Emission controls !!
_________________
'78 924 NA with Collector plate
33 year old car, with me for 21 yrs
Mint '92 318i BMW
Near mint '98 Buick LeSabre
VE7HFR

9XX Girl! · Posted: Sun Nov 08, 2009 9:36 am Post subject:

Dankoneon81 · Joined: 30 Sep 2009 Posts: 136 Location: Mercersburg PA

what he said! We have air pump and egr not to mention the charcoal canister and all kinds of happy horse crap. BOO for emmisions hooray for having state inspector as a family friend!!

all of mine will be gone come monday afternoon
_________________
95 Neon gutted PnP MS2E turbo
94 Toyota sr5 the work horse
78 924 bone stock for now coming soon MS2E

RC · Joined: 25 Mar 2007 Posts: 2637 Location: Australia

9XX Girl! · Posted: Sun Nov 08, 2009 9:53 am Post subject:

Well kiss my carbon footprint! Sounds like you lot are slamming the stable door after the horse has bolted. We are past the point of no return, anyone heard of a thermal runaway? Dylan/Hendrix hit the nail on the head - outro of Watchtower "...four horsemen were approaching, and the wind began to howl, yer,yer..."

Sling the lot!

_________________
924 (84) N/A 2 ltr - 5 Speed - BLACK - Project (looking for 200BHP, any ideas!)
924 (81) N/A 2 ltr - 3 Speed Auto - SURINAM RED (Metallic) - Near Original Spec (sticking with originality)
BOTH ON THE ROAD, BOTH USED EVERY-OTHER DAY

Dankoneon81 · Joined: 30 Sep 2009 Posts: 136 Location: Mercersburg PA

9XX Girl! · Posted: Sun Nov 08, 2009 10:04 am Post subject:

You have lost me now, i don't understand any of this

_________________
924 (84) N/A 2 ltr - 5 Speed - BLACK - Project (looking for 200BHP, any ideas!)
924 (81) N/A 2 ltr - 3 Speed Auto - SURINAM RED (Metallic) - Near Original Spec (sticking with originality)
BOTH ON THE ROAD, BOTH USED EVERY-OTHER DAY

Dankoneon81 · Joined: 30 Sep 2009 Posts: 136 Location: Mercersburg PA

you asked why your american cars have so many hoses and i explained why we have pile of hose and then explained why the emissions crap is a load of poo
_________________
95 Neon gutted PnP MS2E turbo
94 Toyota sr5 the work horse
78 924 bone stock for now coming soon MS2E

JayZzzz4 · Joined: 23 Sep 2008 Posts: 544 Location: Milwaukee, WI USA

There is also a hose for the ac/heater box, opening and closing a vent door.
_________________
White 1987 Porsche 924S manual

Jakkq · Joined: 29 Sep 2008 Posts: 810 Location: Omaha, Nebraska

so What exactly is it that I should do?
_________________
1979 Porsche 924- Snailshell
http://porsche924workblog.blogspot.com/

datatrain · Posted: Sun Nov 08, 2009 1:23 pm Post subject:

Your lost ? I find that hard to believe. The idea of the system is to ensure the exhaust is as clean as possible.

It's achieved by several things working together. The engine has a proper operating temp where everything is working together. Part of the system has temp sensors to open valves to recycle exhaust gases. Part opens an air injection system into the exhaust manifold to complete burning. Part recycles the engine vapours back into the air intake system. Part is a catalytic on the exhaust pipe to finish the job. Part is a gasoline vapour capture system. Put it all together in one fantastic melody and it spells emission control. Yes it sucks the HP and you loose performance. But the up side is it's nice to be able to breath clean air.

California cars have the most comprehesive system and it has lots of parts. Unfortunately I have one of those cars. Where I live now testing is not required but I've been through the system and it is very clean.

So now you know !!!
_________________
'78 924 NA with Collector plate
33 year old car, with me for 21 yrs
Mint '92 318i BMW
Near mint '98 Buick LeSabre
VE7HFR

Jakkq · Joined: 29 Sep 2008 Posts: 810 Location: Omaha, Nebraska

Well this makes no sense! I need a lot of these hoses so the car will lactually drive! I'll take and post a picture once my camera charges.
In any case though it was working just fine before I replaced the hoses. I replaced the hoses 1 by one, putting them exactly where the old ones were, so nothing has changed!
_________________
1979 Porsche 924- Snailshell
http://porsche924workblog.blogspot.com/

9XX Girl! · Posted: Sun Nov 08, 2009 4:55 pm Post subject: