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scallyrally
V4 Beginner

85 Posts

Posted - 07 Jan 2010 :  14:57:48 Show Profile Reply with Quote
Im trying to setup the carb (weber 34ich) as per gentys advice on his website - but having problems setting up the idle speed screw - its taking far more than 4 full turns from the point where the screw is not in contact with the throttle stop lever get an acceptable idle.

Im also getting oil coming up the dipstick - the dipstick is not the tightest of fits but have tried 2 and they both seem the same

Also getting a fair amount of smoke coming up the breather hose from the left hand rocker cover (as if you were standing in front of the car) which then connects to the carb filter housing)
I can post some pics if needed

Cheers!!

UK_Sub
Moderator

United Kingdom
2103 Posts

Posted - 07 Jan 2010 :  15:47:38 Show Profile Reply with Quote
Pics would be useful, especially of the linkage on the carb.

As far as oil on the dipstick and the smoke, might be worth taking the rocker covers off and checking you're getting oil to the rockers (could be an oil circulation problem?). You'll need a new set of gaskets if you're doing that though, but at least you could set the tappets up at the same time.
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scallyrally
V4 Beginner

85 Posts

Posted - 07 Jan 2010 :  16:44:34 Show Profile Reply with Quote










rocker covers were next on my list - Can I get gaskets easily enough?
Or is it from USA or Germany?

Cheers!!
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pchristy
V4 Guru

United Kingdom
1737 Posts

Posted - 07 Jan 2010 :  18:14:32 Show Profile Reply with Quote
There was an outfit in the States doing re-useable silcone ones a year ago at very reasonable prices! I'm at work at the moment, so I can't find the details, but they'll be on this forum somewhere. I got two sets, and they are superb!


--
Pete
"Duct tape is like the Force: It has a light side and a dark side, and it binds the Universe together!"
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pchristy
V4 Guru

United Kingdom
1737 Posts

Posted - 07 Jan 2010 :  18:19:07 Show Profile Reply with Quote
Found the link....

http://www.realgaskets.com/


--
Pete
"Duct tape is like the Force: It has a light side and a dark side, and it binds the Universe together!"
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UK_Sub
Moderator

United Kingdom
2103 Posts

Posted - 07 Jan 2010 :  18:58:33 Show Profile Reply with Quote
It looks like the vacuum advance pipe from the dizzy isn't attached?

Don't know if it would help, but I got hold of a different throttle arm (the one that runs from the heater box to the manifold) - that has a throttle stop. This was mainly because the arm was rotating too far. I've tried to highlight it in this pic . . .



It could help you set up the idle!?!

I've got those rubber gaskets too - they turned up quite quickly.

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scallyrally
V4 Beginner

85 Posts

Posted - 07 Jan 2010 :  19:38:41 Show Profile Reply with Quote
Just ordered the gaskets - thanks for the links
even better they are reusable!

The vacuum advance pipe is connected from dizzy to carb (I know you can only see the pipe coming from the dizzy!)

The linkages all seem to operate well - but will recheck
Did you get a new throttle arm with stop from - fast road cars?
Could it just be down to timing? i have only set it up statically and not via strobe or dwell

I'm still amazed by the helpfulness and wealth of knowledge on here
Thanks all
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Derek
V4 Guru

United Kingdom
1778 Posts

Posted - 07 Jan 2010 :  19:46:42 Show Profile Reply with Quote
"Im trying to setup the carb (weber 34ich) as per gentys advice on his website - but having problems setting up the idle speed screw - its taking far more than 4 full turns from the point where the screw is not in contact with the throttle stop lever get an acceptable idle."

The screw you describe just sets the butterfly position for the idle and is likely to be a long way "out". This isn't the idle jet adjustment, that screws into the carb body. If it is more than 2 turns out from fully in you may need a different pilot jet.

Oil blowing out of the dip stick hole either means serious piston blow by or the breathing system is wrongly fitted. If the engine normally has a pipe from the oil filler to the air filter this is essential but is often omitted when a sports filter is fitted. Changing manifolds and carbs can cause problems but a version of the factory pipework will have to be worked out.
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scallyrally
V4 Beginner

85 Posts

Posted - 07 Jan 2010 :  20:11:37 Show Profile Reply with Quote


Im new carbs! - these are the screws i had been using?
Is the idle speed screw visible in my pics?

This is how the car was when i got it and my other one has exactly the same setup with the carbs and sports filter except that the rocker cover breather pipe does not go to the filter on the beige car just a long pipe from the rocker breather nozzle to the wing
on both cars the oil filler caps are sealed with no pipes anywhere?
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UK_Sub
Moderator

United Kingdom
2103 Posts

Posted - 07 Jan 2010 :  21:25:11 Show Profile Reply with Quote
If you have a oil breather pipe in the rocker cover - I think it's MEANT to go to the air filter - definitely not the wing (that was probably to get it through an emissions test (which our cars don't need to pass anymore).

The only reason to have vented oil filler caps is if you DONT have the pipe in the cover - hope that makes sense.

I see your vacuum pipe now - sorry didn't look at the top pic very well!

Have you checked the position of the dizzy, it may need advancing/retarding slightly?

Here's a link to the running problems I had . . .

http://www.saab-v4.co.uk/speedball/topic.asp?TOPIC_ID=653&SearchTerms=faces

http://www.saab-v4.co.uk/speedball/topic.asp?topic_id=708&whichpage=4&SearchTerms=hair

http://www.saab-v4.co.uk/speedball/topic.asp?TOPIC_ID=830&SearchTerms=faces

http://www.saab-v4.co.uk/speedball/topic.asp?TOPIC_ID=837&whichpage=1&SearchTerms=replaced

I would recommend a mobile tune-up guy, as they can see stuff a lot easier when it's plugged into their computer, saves a lot of hassle in the long run, but it SHOULD work if you follow the setup guide in the Haynes manual.

Hope it goes OK!


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scallyrally
V4 Beginner

85 Posts

Posted - 07 Jan 2010 :  21:43:27 Show Profile Reply with Quote
Ill have a read though those - its taking me ages makin notes and going through all the previous post on this and the old forum!!
The blue 95 as shown in the last of my original pics does have the breather pipe from the rocker cover to the air filter and this is the one blowin smoke and small amounts of oil as you can see on the white plastic nut
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Woody
V4 Guru

United Kingdom
2373 Posts

Posted - 07 Jan 2010 :  22:20:55 Show Profile Reply with Quote
The breathing pipes appear correct to me - 1/2 up to filter and 3/4 to the adaptor plate. Check that the rubber pipes on the breathers are not too soft or can flatten under load which would cause pressure build up in the crankcase.
Interesting that there is oil on the take off in the air filter, as air is supposed to go down this into 1/2 rocker cover. Is this adaptor straight through? Evidence of the oil suggests blow back here. Might be worth checking the integrity of the pipes on 3/4 and the PC valve on the intake adaptor.
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rsimps
V4 Guru

United Kingdom
1616 Posts

Posted - 08 Jan 2010 :  07:52:23 Show Profile Reply with Quote
I would say the adapter on the filter has a far too small ID. Check your carb linkage is not stopping the throttle spindle. It should always rest on the idle screw. Your diagram is correct. Check that the breather pipes etc are not blocked up, the v4 engine can soil up in the top of the rocker covers if the oil is not changed and the car run on short journeys. It might be a good idea to check the compression of the engine. What grade of oil are you using?
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scallyrally
V4 Beginner

85 Posts

Posted - 08 Jan 2010 :  13:43:18 Show Profile Reply with Quote
Once rocker gaskets arrive will have a strip down adjust tappets oil change etc and report back - not to worried about the carb as she starts and runs and its gonna be just some fiddling!
More concerned about the oil - the 1/2 rocker cover is definatley blowin and not suckin even after changin rubber breather pipes and if you place just light finger pressure over the 1/2 rocker breather you can see oil weep from the dipstick - took it for a very short spin and it has emptied lots of oil from the dipstick over exhaust plugs and starter motor so some sort of blockage somewhere
again thanks for all the advice
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scallyrally
V4 Beginner

85 Posts

Posted - 25 Jan 2010 :  18:43:17 Show Profile Reply with Quote
Ok the reusable Rocker gaskets arrived this afternoon from the US of A

So thats tomorrows job

Just look at the Haynes re valve adjustment - now ive only done this before using the rule of 9s -
From what i can gather Haynes are saying
Balance shaft notch to mark at TDC
If rocker arms on 4 cylinder are rocking then 1 piston is at TDC (which it should be if timing is right?)
so I can then adjust

1 inlet 2 exhaust 4 inlet 6 exhaust

Now take it i have to turn balance shaft 180? to get no 4 piston at TDC?

then i can adjust 3 exhaust 5 inlet 7 exhaust and 8 inlet

Have I understood Haynes correctly??

Thanks

Edited by - scallyrally on 25 Jan 2010 18:43:55
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UK_Sub
Moderator

United Kingdom
2103 Posts

Posted - 25 Jan 2010 :  21:40:37 Show Profile Reply with Quote
I remember the Haynes manual is really confusing, but you should get it by trial and error.
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