7A engine in B2 (passat) General guide. - Page 2

PoloGaz · 26-03-15, 06:32 PM

Having a few teething problems. Clutch feels like it needs bleeding again (what a pain it is to do that!) it's biting right on the floor and feels like it's dragging a bit. Possibly related; once the engines hot it's not sometimes possible to get it in gear at all. I had to set off in third before, luckily car was pointing downhill! Seems ok when engines stopped, which seems to tie in with it being a clutch issue

Also the idle cutoff seems very severe, any ideas why that might be? Very annoying in stop-start traffic!

Colin Aitchison · 02-11-15, 05:12 AM

Hi, My winter project is to fit a 7A 20v into my B2 Audi Coupe 2.2 GT (KV), how did you connect your rev counter, the coupe rev counter is wired from the negative side of the coil (black / red / yellow wire) this also connects to the fuel pump relay and the oil pressure warning system.

PoloGaz · 02-11-15, 06:57 AM

I wired it to the same place on the 7a ignition coil. Simples! I can get a pic if you need one, but might take me a few days an I'm not where the car is at the moment

Colin Aitchison · 02-11-15, 07:19 AM

Is the coil on your 7A the small square type with the amplifying box bolted to the same bracket

PoloGaz · 02-11-15, 07:27 AM

Yeah the coil low tension terminals are two screws exposed on top of the amp so you can attach a feed to one of them it's the smaller diameter of the two screws that's negative if I remember right

Colin Aitchison · 02-11-15, 08:04 AM

When you get a chance can you post a photo of the coil, I will start a new post as soon as I can with photo of my own install.
Many Thanks.

Jake Blight · 02-11-15, 08:24 AM

Superb info and write up. Thanks for sharing it.

Colin Aitchison · 09-11-15, 11:44 AM

Hi Again,
7A engine is in the car now but can't get a spark, the pin in the front of the fly wheel I am happy with but for some odd reason the KV flywheel starter ring gear has a different part number from the 7A flywheel starter ring gear, I have used the KV flywheel due to using the original coupe gearbox, did you swap the starter ring gear from the 7A flywheel to the KV flywheel ? The KV engine dose not have an engine speed sensor that counts the starter ring gear teeth but all the other engines like MB/RR/3B/NM/7A that have the second sensor fitted to the alloy bracket on the rear left hand side on the engine block use the a different flywheel starter ring gear (035105275E) not as the KV fly starter ring gear (046105275A) Can you confirm what starter ring gear is fitted to your flywheel.
Many Thanks Again.

PoloGaz · 06-10-16, 09:36 AM

Sorry that I didn't see this message before. I assume you have sorted this now. Apart from the timing dowel I had installed I did no other mods to the flywheel. I simply counted the number of teeth and was satisfied there were the same number on both flywheels. I used the original 2.0L starter.

I did have trouble starting when the distributor wasn't positioned exactly right. Otherwise I had no issue.

26-03-15, 06:32 PM	#11
PoloGaz Grown up member Classic Audi Club Member Join Date: Aug 2012 Location: Manchester Posts: 362	Having a few teething problems. Clutch feels like it needs bleeding again (what a pain it is to do that!) it's biting right on the floor and feels like it's dragging a bit. Possibly related; once the engines hot it's not sometimes possible to get it in gear at all. I had to set off in third before, luckily car was pointing downhill! Seems ok when engines stopped, which seems to tie in with it being a clutch issue Also the idle cutoff seems very severe, any ideas why that might be? Very annoying in stop-start traffic! Last edited by PoloGaz; 26-03-15 at 06:47 PM.

02-11-15, 05:12 AM	#12
Colin Aitchison Senior Member Classic Audi Club Member Join Date: Dec 2013 Location: Back home in Tillicoultry Posts: 1,315	Hi, My winter project is to fit a 7A 20v into my B2 Audi Coupe 2.2 GT (KV), how did you connect your rev counter, the coupe rev counter is wired from the negative side of the coil (black / red / yellow wire) this also connects to the fuel pump relay and the oil pressure warning system.

02-11-15, 06:57 AM	#13
PoloGaz Grown up member Classic Audi Club Member Join Date: Aug 2012 Location: Manchester Posts: 362	I wired it to the same place on the 7a ignition coil. Simples! I can get a pic if you need one, but might take me a few days an I'm not where the car is at the moment

02-11-15, 07:19 AM	#14
Colin Aitchison Senior Member Classic Audi Club Member Join Date: Dec 2013 Location: Back home in Tillicoultry Posts: 1,315	Is the coil on your 7A the small square type with the amplifying box bolted to the same bracket

02-11-15, 07:27 AM	#15
PoloGaz Grown up member Classic Audi Club Member Join Date: Aug 2012 Location: Manchester Posts: 362	Yeah the coil low tension terminals are two screws exposed on top of the amp so you can attach a feed to one of them it's the smaller diameter of the two screws that's negative if I remember right

02-11-15, 08:04 AM	#16
Colin Aitchison Senior Member Classic Audi Club Member Join Date: Dec 2013 Location: Back home in Tillicoultry Posts: 1,315	When you get a chance can you post a photo of the coil, I will start a new post as soon as I can with photo of my own install. Many Thanks.

02-11-15, 08:24 AM	#17
Jake Blight Grown up member Classic Audi Club Member Join Date: Sep 2015 Location: Cornwall, near England Posts: 881	Superb info and write up. Thanks for sharing it.

09-11-15, 11:44 AM	#18
Colin Aitchison Senior Member Classic Audi Club Member Join Date: Dec 2013 Location: Back home in Tillicoultry Posts: 1,315	Hi Again, 7A engine is in the car now but can't get a spark, the pin in the front of the fly wheel I am happy with but for some odd reason the KV flywheel starter ring gear has a different part number from the 7A flywheel starter ring gear, I have used the KV flywheel due to using the original coupe gearbox, did you swap the starter ring gear from the 7A flywheel to the KV flywheel ? The KV engine dose not have an engine speed sensor that counts the starter ring gear teeth but all the other engines like MB/RR/3B/NM/7A that have the second sensor fitted to the alloy bracket on the rear left hand side on the engine block use the a different flywheel starter ring gear (035105275E) not as the KV fly starter ring gear (046105275A) Can you confirm what starter ring gear is fitted to your flywheel. Many Thanks Again.

06-10-16, 09:36 AM	#19
PoloGaz Grown up member Classic Audi Club Member Join Date: Aug 2012 Location: Manchester Posts: 362	Sorry that I didn't see this message before. I assume you have sorted this now. Apart from the timing dowel I had installed I did no other mods to the flywheel. I simply counted the number of teeth and was satisfied there were the same number on both flywheels. I used the original 2.0L starter. I did have trouble starting when the distributor wasn't positioned exactly right. Otherwise I had no issue.