Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: garyb-sardinia on 21 June 2010, 04:00:21

Title: Auto to Manual conversion, what is needed?
Post by: garyb-sardinia on 21 June 2010, 04:00:21
I'm new to the forum so a quick hello to everyone.  8-)

Now onto my problem.

I've been looking to buy an Omega with set parameters - 3.0 (X30XE), Manual, MV6 or Elite, dark colour ( definitely not white, silver, grey, gold etc) - and am finding the manual option is really restricting choice. I have a couple lined up to see but obviously if the auto-to-manual conversion is relatively straightforward there would be plenty more fish in the sea so to speak.

How easy is it to convert an automatic to manual - is it a purely 'mechanical' job or are there looms/ electrics involved?  Do they use the same chassis, subframe, floorpan, exhaust/ manifs and so on.

I have TIS & EPC at home but I'm travelling at the moment and ideally want to pickup a car before getting back. Furthermore any parts needed are also best picked up on my current travels as they are highly unlikely to be available in home pastures so if someone can create the necessary shopping list for me it would be most helpful. For example does the R28 us the same prop as the auto etc.
Title: Re: Auto to Manual conversion, what is needed?
Post by: RobG on 21 June 2010, 08:14:30
Here you go Gary http://www.omegaowners.com/forum/YaBB.pl?num=1218634381
Title: Re: Auto to Manual conversion, what is needed?
Post by: karlc on 21 June 2010, 09:55:23
did this conversion a few years ago -bought an ex-police manual car with blown engine was handy having a complete car for all the silly little bits that add up to a fortune and are hard to obtain - other than that follow the link
Title: Re: Auto to Manual conversion, what is needed?
Post by: 2woody on 21 June 2010, 15:45:06
I'm on my 9th conversion now.

at the very least, you'll need to do the following......

change the transmission, flywheel, clutch, propshaft and differential.

then you need to add a clutch pedal including bracket, spigot bearing in crankshaft rear, master cylinder and pipework and the gear lever and surround of course.

to do the job properly, you then need to remove the redundant automatic transmission wiring and the control unit. I prefer to leave no trace that the car was ever automatic

you also need to add a reversing light loom and earth the connection from the engine ECU that tells the car it's manual.

Finally, some tech1 action will remove the "automatic transmission" warning from the display, unless like me you like the irony.
Title: Re: Auto to Manual conversion, what is needed?
Post by: Jim on 23 June 2010, 15:05:56
Quote
I'm on my 9th conversion now.

at the very least, you'll need to do the following......

change the transmission, flywheel, clutch, propshaft and differential.
then you need to add a clutch pedal including bracket, spigot bearing in crankshaft rear, master cylinder and pipework and the gear lever and surround of course.

to do the job properly, you then need to remove the redundant automatic transmission wiring and the control unit. I prefer to leave no trace that the car was ever automatic

you also need to add a reversing light loom and earth the connection from the engine ECU that tells the car it's manual.

Finally, some tech1 action will remove the "automatic transmission" warning from the display, unless like me you like the irony.
I'm thinking of converting one of my omegas to manual, do I need the complete differential or can the auto differential be converted?
Title: Re: Auto to Manual conversion, what is needed?
Post by: RobG on 23 June 2010, 15:18:01
Quote
Quote
I'm on my 9th conversion now.

at the very least, you'll need to do the following......

change the transmission, flywheel, clutch, propshaft and differential.
then you need to add a clutch pedal including bracket, spigot bearing in crankshaft rear, master cylinder and pipework and the gear lever and surround of course.

to do the job properly, you then need to remove the redundant automatic transmission wiring and the control unit. I prefer to leave no trace that the car was ever automatic

you also need to add a reversing light loom and earth the connection from the engine ECU that tells the car it's manual.

Finally, some tech1 action will remove the "automatic transmission" warning from the display, unless like me you like the irony.
I'm thinking of converting one of my omegas to manual, do I need the complete differential or can the auto differential be converted?
Not necessarily, depends on your existing ratio`s
Title: Re: Auto to Manual conversion, what is needed?
Post by: serek on 23 June 2010, 15:23:29
Jim what year of the car you think of converting??? late 3.0 auto got 3.9 dif ratio where same like on manual

EDIT: here all dif ratios http://www.opel-infos.de/getriebe/ha_diff.html
Title: Re: Auto to Manual conversion, what is needed?
Post by: Jim on 23 June 2010, 15:37:28
Quote
Jim what year of the car you think of converting??? late 3.0 auto got 3.9 dif ratio where same like on manual

EDIT: here all dif ratios http://www.opel-infos.de/getriebe/ha_diff.html
Well, I'm thinking of converting my 3.0 96 auto elite
Title: Re: Auto to Manual conversion, what is needed?
Post by: RobG on 23 June 2010, 17:39:07
Quote
Quote
Jim what year of the car you think of converting??? late 3.0 auto got 3.9 dif ratio where same like on manual

EDIT: here all dif ratios http://www.opel-infos.de/getriebe/ha_diff.html
Well, I'm thinking of converting my 3.0 96 auto elite
All 3.0ltrs up to MY `98 both manual & auto have the same FD ratio, 3.70:1. After MY `98 manual is 3.70:1 & auto is 3.90:1.
Title: Re: Auto to Manual conversion, what is needed?
Post by: Jim on 24 June 2010, 17:16:55
Quote
Quote
Quote
Jim what year of the car you think of converting??? late 3.0 auto got 3.9 dif ratio where same like on manual

EDIT: here all dif ratios http://www.opel-infos.de/getriebe/ha_diff.html
Well, I'm thinking of converting my 3.0 96 auto elite
All 3.0ltrs up to MY `98 both manual & auto have the same FD ratio, 3.70:1. After MY `98 manual is 3.70:1 & auto is 3.90:1.
So mine should be OK :y
Title: Re: Auto to Manual conversion, what is needed?
Post by: RobG on 24 June 2010, 18:21:16
Quote
Quote
Quote
Quote
Jim what year of the car you think of converting??? late 3.0 auto got 3.9 dif ratio where same like on manual

EDIT: here all dif ratios http://www.opel-infos.de/getriebe/ha_diff.html
Well, I'm thinking of converting my 3.0 96 auto elite
All 3.0ltrs up to MY `98 both manual & auto have the same FD ratio, 3.70:1. After MY `98 manual is 3.70:1 & auto is 3.90:1.
So mine should be OK :y
It appears so Jim :y
Title: Re: Auto to Manual conversion, what is needed?
Post by: CaptainZok on 24 June 2010, 18:33:27
EPC usually tells you which diff was fitted at the factory.
Title: Re: Auto to Manual conversion, what is needed?
Post by: Jim on 24 June 2010, 20:14:15
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Jim what year of the car you think of converting??? late 3.0 auto got 3.9 dif ratio where same like on manual

EDIT: here all dif ratios http://www.opel-infos.de/getriebe/ha_diff.html
Well, I'm thinking of converting my 3.0 96 auto elite
All 3.0ltrs up to MY `98 both manual & auto have the same FD ratio, 3.70:1. After MY `98 manual is 3.70:1 & auto is 3.90:1.
So mine should be OK :y
It appears so Jim :y
Great, anyone want to help me with a conversion ;)
Title: Re: Auto to Manual conversion, what is needed?
Post by: serek on 24 June 2010, 21:24:56
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Jim what year of the car you think of converting??? late 3.0 auto got 3.9 dif ratio where same like on manual

EDIT: here all dif ratios http://www.opel-infos.de/getriebe/ha_diff.html
Well, I'm thinking of converting my 3.0 96 auto elite
All 3.0ltrs up to MY `98 both manual & auto have the same FD ratio, 3.70:1. After MY `98 manual is 3.70:1 & auto is 3.90:1.
So mine should be OK :y
It appears so Jim :y
Great, anyone want to help me with a conversion ;)
I happy to help but long way to go for me to your place.

Title: Re: Auto to Manual conversion, what is needed?
Post by: Jim on 25 June 2010, 06:46:37
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Quote
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Jim what year of the car you think of converting??? late 3.0 auto got 3.9 dif ratio where same like on manual

EDIT: here all dif ratios http://www.opel-infos.de/getriebe/ha_diff.html
Well, I'm thinking of converting my 3.0 96 auto elite
All 3.0ltrs up to MY `98 both manual & auto have the same FD ratio, 3.70:1. After MY `98 manual is 3.70:1 & auto is 3.90:1.
So mine should be OK :y
It appears so Jim :y
Great, anyone want to help me with a conversion ;)
I happy to help but long way to go for me to your place.
Which place, Glasgow or Milan ;D ;D
Title: Re: Auto to Manual conversion, what is needed?
Post by: 2woody on 25 June 2010, 13:13:32
I'm just over the border in the very top of England. Would be prepared to do it for a consideration. Depends on exactly how much of it you want doing and if you have the parts already.
Title: Re: Auto to Manual conversion, what is needed?
Post by: Jim on 25 June 2010, 17:52:15
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I'm just over the border in the very top of England. Would be prepared to do it for a consideration. Depends on exactly how much of it you want doing and if you have the parts already.
I've never done a conversion before and I can only do small jobs on the mig ie: servicing, change a radiator etc but would be willing to do all the work under guidance and bring the car to you.