Originally Posted by
akelly
............
Now to my questions... top speed in 4th overdrive (5th) is about 105kph - this seems pretty slow to me, even for the holden (its reving well past its peak torque at that speed) - can anyone with a similar vehicle tell me if this is normal? I checked the speed with my GPS and its pretty close (as close as GPS can be for this sort of caper). 4th gear without overdrive tops out at about 92kph, so I'm not getting much out of the OD (it seems). I'm going to check wide-open-throttle tonight as it seems to lack any reserve of power at 100kph (takes a long time to wind out to the max 105kph).
Next - has anyone had a SIIA box rebuilt recently? Who in Sydney is good for this, and how much did it cost (approx)? Also, the t'case will get done at the same time, but I'll probably do that myself (if a reco box is too exy then I'll do that too). If I need to do the box myself, does anyone do a "kit" for it or do you have to order each part?
Also, I am assuming the OD is a Santana as it has an extra rib on the sump, and its not a fairey (got one of those in the shed) - is this a fair assumption or could it be something else? Where do we get parts for these things?
lastly - there's been a few threads about sticking a 300Tdi into a SIIA, it sounds like a fine idea; has anyone done it (and got it on the road)? I'd love to see one in the flesh.
Cheers!
My 2a with a standard engine and Fairey overdrive will do more than that (although it is happier around 100), so I would suspect something is not quite right, although the Rover engine likes revving more than the Holden one does. You won't have a lot of spare power at that speed, and I would check that none of the brakes are dragging slightly, also the tyre pressures. The wider tyres will slow you a little but shouldn't make that much difference.
There are at least two overdrives other than Fairey for Series Landrovers, both are considered to be more robust than the Fairey one, but have the drawback that parts are far more difficult to find, although with any luck all you will only need are seals and bearings, which you can probably get from your local bearing shop. Apart from seals and bearings I don't know where to even start looking for parts!
Any competent gearbox specialist should be able to do the gearbox - they are relatively simple and easy to work on. Again, it is likely to only need seals and bearings, depending on which model - there are three main versions of the boxes fitted to the S2a from memory, and the last of these is considerably more robust than the earlier ones (or the S3 box). the transfer case almost certainly only needs seals and bearings (unless it has been run dry or with water instead of oil), although if it is an early one the idler shaft may be worn.
I have heard of Tdi engines being installed in Series Landrovers but never seen one. They are much more powerful than the original engine and are likely to cause main gearbox failures and (unless you have a salisbury rear axle) broken half shafts. A solution to this is to use a later gearbox, but these are all constant four wheel drive, so you would have to convert to this or convert the box to part time four wheel drive, or mate the new gearbox to the Series transfer case, which will stand the extra power (an auto box would probably save the rear axles!). It all adds up to a very complex and hence expensive conversion - but it could be done.
The 200Tdi is a little easier in the respect that the engine mounts and the bell housing are the same as the earlier engines, assuming your original engine was a four - I think the pattern on the six is the same as the 300Tdi, although I am not sure.
John
John
JDNSW
1986 110 County 3.9 diesel
1970 2a 109 2.25 petrol
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