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1600 CT TIMING
Posted: 24 Jan 2011, 22:17
by DEVO
Hi.I rebuilt my 1600 CT engine recently and the timing is a bit off.just wondering what degrees BTDC or ATDC it should be set at ?a friend of mine timed it the way he does his 2ltr bay but i think the timing is different,anyone know?cheers
Re: 1600 CT TIMING
Posted: 25 Jan 2011, 07:00
by bigherb
Depends on which distributor is fitted. Early models twin vac 5 deg ATDC with both vac hoses connected. Later single vac 7.5 deg BTDC vac hose off.
Re: 1600 CT TIMING
Posted: 25 Jan 2011, 22:55
by dugcati
bigherb wrote:Later single vac 7.5 deg BTDC vac hose off.
are you sure? I've had several CT engines and not heard of that...
Re: 1600 CT TIMING
Posted: 26 Jan 2011, 07:30
by bigherb
Yep. Thats why it is important to check which distributor is fitted.
Re: 1600 CT TIMING
Posted: 26 Jan 2011, 19:00
by dugcati
interesting - where is that image from?
Re: 1600 CT TIMING
Posted: 26 Jan 2011, 19:10
by bigherb
The bleed through from the reverse side should give you a clue.
Re: 1600 CT TIMING
Posted: 26 Jan 2011, 19:20
by sarran1955
Hello,
Absolutely, Start from 7 1/2 dtdc, and I'm testing various set ups even 8 1/2 seems good, considering that 98 ron petrol, (or at least French petrol), has changed considerably these last few years.
To run the timing as far advanced and with good compression, you must have an adequate battery, as you are pushing up the cranking voltage, (esp on a cold morning )
Cordialement,
Re: 1600 CT TIMING
Posted: 27 Jan 2011, 19:40
by DEVO
Thanks guys,my dizzy is twin vac and i think its set at 5 BTDC at the minute so it must be way off.
Re: 1600 CT TIMING
Posted: 27 Jan 2011, 23:15
by dugcati
bigherb wrote:The bleed through from the reverse side should give you a clue.
thanks
I can see that...... maybe I need to ask a different way round - where did you get the
V.A.G Service Workshop Bulletin from/ is there anyway to obtain one/a copy of?
Be aware that advancing Timing on a CT = cooked heads which they don't need much assistance to do well , one of LAurie Pettit's tricks to make the 1776'd CT's last longer is to drop the compression
Re: 1600 CT TIMING
Posted: 17 Apr 2011, 20:10
by dubdaze
Hi,
Sorry for jumping in here, but I need to find a timing scale for my 1600ct engine. Does anyone know where I can find one?
Thanks,
R
Re: 1600 CT TIMING
Posted: 17 Apr 2011, 20:23
by sarran1955
Hello,
What is your CT setup
pistachio wrote:
She started up first time, good old girl! We took her for a quick test drive, she started off OK, moving but driving like a shed, coming back up the small hill to the house however she lost all power and we chugged along in 1st. John diagnosed this as dead points. We swiftly installed a new condenser and looked on ebay to replace the 009 with a Bosch SWDA. We managed a steal with a re-built dizzy for £12.50 and a new diaphragm unit. Basically the 009 dizzy was "pooh" from the start.
So we went skiing.
The following weekend we took the carbs off, we stripped them down and cleaned their important components in the ultra sonic bath. We reinstalled them as they were originally set. The right hand carb was flooded and everything had been over cranked to get the tick over down. So we had quite a bit of tuning to do. This gave John an opporunity to build a tuning contraption!! Here are some short videos of the state of the carbs before and after:
Before:
http://www.youtube.com/watch?v=4qayyc9Z ... re=related" onclick="window.open(this.href);return false; (click here to see carburettor set up for a shed
)
After:
http://www.youtube.com/watch?v=dsfo5ATg ... re=related" onclick="window.open(this.href);return false;
I can do you a template to paint the timing marks on the turbine tinware.
Cordialement,
Re: 1600 CT TIMING
Posted: 17 Apr 2011, 20:31
by dubdaze
Hi,
My CT setup is stock with the single vac Dizzy non electronic ignition. Is that what you meant?
R
Re: 1600 CT TIMING
Posted: 18 Apr 2011, 17:04
by sarran1955
Hello,
Assuming you have a Solex PICT 34/4 carb.
I run my CT 1600, with conventional ignition etc: 45 degrees of dwell, 8 degrees BTDC at 1000 rpm with vac hose off, 20 degrees of advance at 3000 rpm with hose on.Carb auxilliary pipes blocked.
I can make up a template for you to paint onto your turbine housing.
I get 28 mpg, with a top speed, (on the flat on motorway) of 113 KPH (confirmed on GPS)
Tintop, (with minimum weight interior).
If you need help setting up the carb, I can give advice, but I'm just a bit far away to pop over.
Cordialement,
Re: 1600 CT TIMING
Posted: 19 Apr 2011, 19:55
by dubdaze
Hi,
Yeah have a 34/4 carb on it. There are loads of vacuum pipe outlets, but unsure where they go as well! The template would be great, and any help tuning the carb would be appreciated as well.
Thanks,
R