Club 80-90 Forums

Sorry to sound numb, but just got the log book back for my newly purchased t25, it's states the engine number as DF, is this the same as a Dg engine as i've not heard much about these. are they generally good engines, what are the weaknesses etc.

Thanks

there are quite a few differences...
and it's all to do with power, in that there is less of it with the DF
I could list the technicalities if you wish?

please

this will give you the difference in horse power..https://club8090.co.uk/wiki/Pe ... gine_codes

DF
Output 44kW - 60bhp DIN @ 3700RPM
Torque.. 140 Nm @ 2200 RPM
Bore.. 94mm
Stroke.. 68.9mm
Compression ratio.. 8.6:1
Minimum octane rating.. 91 RON
Ignition system.. transistorized hall effect
Trigger location.. distributor
Fuel system... solex carburettor
Type.. 34 PICT


Inlet opens 4° ATDC
Inlet closes 26° ABDC
Exhaust opens. 36° BBDC
Exhaust closes. 14° BTDC

Inlet head diameter. 35.5 mm
Inlet stem diameter. 7.94 - 7.95 mm
Inlet overall length. 122.5 mm
Inlet valve seating face angle. 45°
Exhaust head diameter 30mm
Exhaust stem diameter 8.91 - 8.92 mm
Exhaust overall length 122.5
Exhaust valve seating face angle 45°



DG
output 57kW - 78bhp DIN @ 4600RPM (swiss - 54kW - 73bhp DIN@4000 RPM)
Torque.. 141Nm @ 2600 RPM. (swiss - 150 @ 2600 RPM)
Bore.. 94 mm
Stroke.. 68.9 mm
Compression Ratio... 8.6:1
minimum octane rating ..91 RON
ignition system.. transistorized hall effect
trigger location.. distributor
fuel system.. pierburg carburettor
type.. 2E3

Inlet opens. 5° BTDC (1° from 01/86)
Inlet closes. 34° ABDC( 30° from 01/86)
Exhaust opens. 38° BBDC (36° from 01/86)
Exhaust closes. 4°ATDC (8° from 01/86)

Inlet head diameter. 40 mm
Inlet stem diameter. 7.96 - 7.97 mm
Inlet overall length. 122.5 mm
Inlet valve seating face angle. 45°
Exhaust head diameter 34mm
Exhaust stem diameter 8.91 - 8.92 mm
Exhaust overall length 122.5
Exhaust valve seating face angle 45°



Data courtesy of Brickyard

So as you can see the camshaft is very different as is the Carburettor, inlet manifold, cylinder head and valve gear

cheers pal , looks like i got the lump then.