New(ish)Member West London & Spain

I

ianb

New Member
Hi
I have recently brought a LHD 3500 Auto into the UK -West London )- from France, and its eventual desination is southern Spain. Body work is very solid, interior needs work but I have aquired a complete (virtually new) leather interior, and most of the bits and pieces I need. A respray is required but again this is not a problem. My main problem :cry: is the BW 65 Auto Box. Once it gets to 2000 - 2500revs power willl frequently drop and accelerating has no effect. You have to brake and then then accelerate. It can go for many miles without an hitch but then it starts. Two questions from a newbie - 1) Anyone any suggestions as to the problem. 2) Can anyone recommend a good mechanic in West London or environs :?: .
I want to get it mechanically sorted before taking to Spain for its full re-birth :p .
Journey from France was good fun. If anyone is in the Limoges area of France I can recommend a garage (and there's also an extensive collection of classics - including a P6, Austin 1100, MGB and about 50 French and German classics)that you might be able to view if you speak with Ludo, the owner.

happy rovering :D
Ian
 
First step is to make sure the fluid level is correct. Harvey has tutored us all well on this and it isn't straightforward or obvious. For best results:

1 get the box hot
2 drive the car so that all three forward gears and also reverse have been selected and driven in immediately before you check the level.
3 check and top the level
4 repeat 1 2 and 3 above

If after this treatment everything works - find and fix the oil leak. If not we had better wait for Harvey!

I'm just in the process of commissioning my new purchase (albeit with a 35) and it has a large ATF leak (yet to be investigated). The change in behaviour of the box over the course of a single long journey as the level falls is dramatic and educational! Luckuly it returns to perfect when I stop to fill up!

Chris
 
Just a couple of things to add to the level checking procedure.

Drive to normal operating temperature, and while doing so check that the selector linkage is working as it should.
(If this isn't possible, check the selector linkage, and run the car up stationary.)

Then with the car on level ground with the engine running, run through the entire range, starting and finishing in "PARK" allowing a few seconds in each position to allow it to engage.

Then with the engine still running, walk round, remove and wipe the dipstick, then reinsert to take a level.
 
As to the original problem, what reason would you have for thinking that it's a problem with the transmission? I'm not saying that it isn't, only that I can think of far more things to cause it that would be engine related rather than gearbox related.

Does the problem occur at that engine speed, regardless of what gear it's in?
 
Hi

many thanks for the reply. There's no particular reason for saying its the transmission. The engine 'sounds' OK, but when it changes gear it does seem to arrive with a 'thump'. But, I'm open to all suggestions. I've run the car, will go into all gears, and checked fluids as per above and all seems OK, sooo..........


Ian
 
Harsh changes (the thump you describe) are normally a sign of the pressures being set too high, which is adjusted on the kickdown cable.

In your original post you said you were looking for someone who knew the cars, and in this instance, as you were sensible enough to admit that it was probably out of scope of the work you would be comfortable doing yourself, I would say that would be a good course of action. You need to have someone drive the car who is able to tell you where the problem lies, and what can be done to cure it.

It's a shame you're not a bit closer to Essex.
 
I don't understand why braking makes a difference , unless it's taking your foot off the gas that does the trick
Are the brakes dragging ?
Does it refuse to rev over 2500 rpm ?
 
You must log in or register to reply here.
Back
Top