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Chat Area => General Car Chat => Topic started by: mathewst on 09 February 2012, 21:24:01

Title: buying another mig opinions on engine please
Post by: mathewst on 09 February 2012, 21:24:01
I'm thinking of buying another mig.
Found one 1999 2.5td estate with auto gearbox.
Car covered around 110 000 miles and looks really ok on pics.
Didn't have a diesel mig before so need some opinions on these engines and gearboxes.
All advices are welcome
Title: Re: buying another mig opinions on engine please
Post by: TheBoy on 09 February 2012, 21:31:34
BMW straight 6 with auto gearbox isn't that great. Poor MPG, gearbox will fail soon, radiators silt up, and its gutless.
Title: Re: buying another mig opinions on engine please
Post by: mathewst on 09 February 2012, 21:37:43
What do you mean Boy about the gearbox, what excatly fails?
Title: Re: buying another mig opinions on engine please
Post by: TheBoy on 09 February 2012, 21:41:33
It just wears out. All the friction plates have no friction left.
Title: Re: buying another mig opinions on engine please
Post by: mathewst on 09 February 2012, 21:45:20
Does this mean new gearbox or the parts can be replaced?
And do you have an estimate at what mileage this usually happens?
I could always convert it to manual I suppose?
Title: Re: buying another mig opinions on engine please
Post by: TheBoy on 09 February 2012, 21:48:20
Does this mean new gearbox or the parts can be replaced?
And do you have an estimate at what mileage this usually happens?
I could always convert it to manual I suppose?
Normally about 120k.

If you are happy to strip autoboxes, its doable, but a manual TD is a much nicer beast ;)
Title: Re: buying another mig opinions on engine please
Post by: mathewst on 09 February 2012, 21:50:21
Now you go me worried alot.
Cn these friction plates be replaced or do I need a new gearbox
Title: Re: buying another mig opinions on engine please
Post by: TheBoy on 09 February 2012, 22:01:24
Now you go me worried alot.
Cn these friction plates be replaced or do I need a new gearbox
To be perfectly honest, throw away the gearbox and either fit an AR35 (from a 3.0/3.2 - but reused the TD's torque converter and bell housing), or preferably, fit a manual.
Title: Re: buying another mig opinions on engine please
Post by: mathewst on 09 February 2012, 22:04:46
Om thanks Boy for the advice
I ll probably buy the car nd convert it later if I find problems with the gearbox.
Title: Re: buying another mig opinions on engine please
Post by: cem_devecioglu on 09 February 2012, 22:08:09
a diesel with 110 k miles , soon will start expensive problems here and there ..
if you have the budget to deal with that its ok..(and car must be cheap)
Title: Re: buying another mig opinions on engine please
Post by: TheBoy on 10 February 2012, 08:42:19
a diesel with 110 k miles , soon will start expensive problems here and there ..
if you have the budget to deal with that its ok..(and car must be cheap)
That TD lump, injection pump aside, is quite rubust if it hasn't been poorly serviced (virtually all have though). Although when it fails, its often spectacular.

It really isn't suited to the auto box though. A chipped manual one is a good, reasonably economical workhorse.  The autos have relatively poor MPG, chipping improves by about 10%, but that will kill the gearbox within a couple of hundred miles.
Title: Re: buying another mig opinions on engine please
Post by: cem_devecioglu on 10 February 2012, 09:26:40
a diesel with 110 k miles , soon will start expensive problems here and there ..
if you have the budget to deal with that its ok..(and car must be cheap)
That TD lump, injection pump aside, is quite rubust if it hasn't been poorly serviced (virtually all have though). Although when it fails, its often spectacular.

It really isn't suited to the auto box though. A chipped manual one is a good, reasonably economical workhorse.  The autos have relatively poor MPG, chipping improves by about 10%, but that will kill the gearbox within a couple of hundred miles.

imo 6 cylinders and economy is not a good match anyway.. ;D  besides if you add a heavy car and an autobox its really false economy.. :-\
Title: Re: buying another mig opinions on engine please
Post by: cem_devecioglu on 10 February 2012, 09:32:28
for the members information, here the diesel miggies are around 8000-12000 £.. (second hand) if you add the expensive repairs for turbo, injection pump and other bits.. these cars eat up your 5 years profit of diesel (unless you make galactic miles yearly) just at the beginning..
 
Title: Re: buying another mig opinions on engine please
Post by: TheBoy on 10 February 2012, 09:49:31
a diesel with 110 k miles , soon will start expensive problems here and there ..
if you have the budget to deal with that its ok..(and car must be cheap)
That TD lump, injection pump aside, is quite rubust if it hasn't been poorly serviced (virtually all have though). Although when it fails, its often spectacular.

It really isn't suited to the auto box though. A chipped manual one is a good, reasonably economical workhorse.  The autos have relatively poor MPG, chipping improves by about 10%, but that will kill the gearbox within a couple of hundred miles.

imo 6 cylinders and economy is not a good match anyway.. ;D  besides if you add a heavy car and an autobox its really false economy.. :-\
A manual TD should return around 35-40mpg day to day, unless all urban work.  My auto used to return around 32mpg.
Title: Re: buying another mig opinions on engine please
Post by: cem_devecioglu on 10 February 2012, 11:44:54
some half engine (3-4 cylinder, 0.8 -1.4  ;D ) diesels avg around 60-70 mpg.. :o

I bet if I have them I'll visit the fuel station once a month ;D
Title: Re: buying another mig opinions on engine please
Post by: TheBoy on 10 February 2012, 13:18:31
some half engine (3-4 cylinder, 0.8 -1.4  ;D ) diesels avg around 60-70 mpg.. :o

I bet if I have them I'll visit the fuel station once a month ;D
Omega is a big luxury exec, not a small shitbox, thus will never manage that sort of MPG. Nearest Vauxhall is the Insignia, and the 2.0 cdti only manages about 45mpg, and its noticibly smaller...
Title: Re: buying another mig opinions on engine please
Post by: mathewst on 10 February 2012, 20:43:23
Well I bought the car.
Drove it 400 miles today from th place where the seller lives to my town.
Of course there are some issues with the car (wishbones are dead, parking brake isnt working and the third problem which is REALLY ANNOYING.
I stoped the car and it woudnt start on the halfway home, of course I went beserk.
Called the seller and he told me to put more diesel in the car
When I put another 30 litres in the car started without much trouble.
Same thing happened just couple of minutes ago, it doesn't want to start.
It seems the car is having dificulty starting when the fuel is around or bellow half the tank.
When there is more fuel it starts without problems  :o :o :o
I'm guessing dirty fuel pump in the reservoire??
Other than these things mentioned it really is in good condition, no rust, seats are good, engine works like a charm (when it starts) and doesnt puff out black smoke at all
Title: Re: buying another mig opinions on engine please
Post by: cem_devecioglu on 10 February 2012, 22:53:35
ok.. you better open a thread in general help section imo..
Title: Re: buying another mig opinions on engine please
Post by: cem_devecioglu on 10 February 2012, 22:59:47
a diesel with 110 k miles , soon will start expensive problems here and there ..
if you have the budget to deal with that its ok..(and car must be cheap)

I wasnt expecting too soon ::)
Title: Re: buying another mig opinions on engine please
Post by: TheBoy on 11 February 2012, 09:29:42
Well I bought the car.
Drove it 400 miles today from th place where the seller lives to my town.
Of course there are some issues with the car (wishbones are dead, parking brake isnt working and the third problem which is REALLY ANNOYING.
I stoped the car and it woudnt start on the halfway home, of course I went beserk.
Called the seller and he told me to put more diesel in the car
When I put another 30 litres in the car started without much trouble.
Same thing happened just couple of minutes ago, it doesn't want to start.
It seems the car is having dificulty starting when the fuel is around or bellow half the tank.
When there is more fuel it starts without problems  :o :o :o
I'm guessing dirty fuel pump in the reservoire??
Other than these things mentioned it really is in good condition, no rust, seats are good, engine works like a charm (when it starts) and doesnt puff out black smoke at all
Probably the in-tank lift pump is tired - once running, the main injection pump has the power to suck all the way from tank, but during cranking, esp on low fuel, needs the lift pump to help...