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Post by harvey on Apr 1, 2015 20:11:23 GMT
Also I noticed when fitting the sump back on that the pipes in the gearbox touch the bottom of the sump, should this happen? or do I need a thicker gasket. You can try gently knocking the pipes upwards with the handle of a hammer, but the idea is that the sump being there stops the pipes being able to fall out if they're a bit loose.
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Post by p5rover on Apr 1, 2015 21:00:52 GMT
Also I noticed when fitting the sump back on that the pipes in the gearbox touch the bottom of the sump, should this happen? or do I need a thicker gasket. You can try gently knocking the pipes upwards with the handle of a hammer, but the idea is that the sump being there stops the pipes being able to fall out if they're a bit loose. Thanks Harvey, will do that tomorrow.
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Post by p5rover on Apr 2, 2015 22:26:50 GMT
All fitted back together with the new cable and the gear change is a lot better, as it now changes up sooner, but it still wants to change up when coming off the accelerator!
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Post by harvey on Apr 2, 2015 22:46:20 GMT
All fitted back together with the new cable and the gear change is a lot better, as it now changes up sooner, but it still wants to change up when coming off the accelerator! That's how it's supposed to be. It's only a problem if you have to lift off the throttle to get it to upshift.
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Post by p5rover on Apr 2, 2015 23:03:48 GMT
I see, can I adjust anything so that the gears change up a bit sooner? while it's a great improvement over what it was like, I still feel I would like the gear to change just a slight bit sooner.
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Post by Phil Nottingham on Apr 3, 2015 0:00:38 GMT
Sooner? DEFINE
The BW 35 was heavily critisized at the time by inexperienced automatic car drivers/road testers as changing up TOO soon - base speeds are stated in the WSM
I have no problem with this ever in classic cars - modern ones are unsatisfactory in my experience
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Post by p5rover on Apr 3, 2015 9:55:35 GMT
TBH I may just be being a bit fussy, it could be to do with the fact that my speedo is reading far to high, at around 30mph the speedo shows about 50! What is WSM? as that would be the best way for me to check if its changing at the right speed, but would need to sort my speedo first.
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Post by Deleted on Apr 3, 2015 10:28:42 GMT
TBH I may just be being a bit fussy, it could be to do with the fact that my speedo is reading far to high, at around 30mph the speedo shows about 50! What is WSM? as that would be the best way for me to check if its changing at the right speed, but would need to sort my speedo first. WSM = work shop manual. Sort the speedo first.
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Post by p5rover on Apr 3, 2015 19:53:06 GMT
A question for harvey, i noticed that when I stop and reverse into my drive(which is on a slight incline) I stop, reverse back and then lift off the accelerator and on to the brake, then I go back on the accelerator, but when I do the gearbox seems to have disengaged, so the revs rise like its not in gear and then it will suddenly engage again after a few seconds on the accelerator. What causes this?
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Post by harvey on Apr 3, 2015 20:49:12 GMT
A question for harvey, i noticed that when I stop and reverse into my drive(which is on a slight incline) I stop, reverse back and then lift off the accelerator and on to the brake, then I go back on the accelerator, but when I do the gearbox seems to have disengaged, so the revs rise like its not in gear and then it will suddenly engage again after a few seconds on the accelerator. What causes this? My first guess would be low fluid level.
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Post by p5rover on Apr 3, 2015 21:02:32 GMT
Thanks, I will check the level again tomorrow, I do have a hard time reading the level so I may have got it wrong.
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Post by harvey on Apr 3, 2015 21:29:57 GMT
Thanks, I will check the level again tomorrow, I do have a hard time reading the level so I may have got it wrong. Check the fluid level as follows: With the transmission at normal working temperature, the engine idling, and the car on level ground, run through the entire selector range allowing a few seconds in each position to allow it to engage, starting and finishing in PARK, then, with the engine still running walk round remove and wipe clean the dipstick and re-insert to take a level. You will have time for a few quick dips to try and get an accurate level. If you add fluid repeat the whole procedure before taking another level. Use only ATF-G or fluid that meets Ford spec. M2C-33G. DON'T use any of the DEXRON type fluids. A small amount of white blackboard chalk rubbed on the bottom of the dipstick, and then wiped off, dries it and makes seeing the level easier. The fluid should be red and clean, not brown and burnt.
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Post by enigmas on Apr 4, 2015 3:08:15 GMT
I've had a similar situation occur on a couple of occasions when descending steep, declining roads (mountain ranges). This is due to the rear pump pickup on the MK3 BW35 (it has 2 pumps, one front and one rear) drawing in air rather than fluid. Getting precise fluid levels seems to be more of an art than a science. A small addition of ATF can make a major difference.
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Post by p5rover on Apr 4, 2015 19:48:02 GMT
Tried checking the fluid today and it looks high to me, but I am noticing that when I take a sharp left turn the gearbox seems to disengage like in reverse, which sounds like low fluid? but dipstick looks high! What damage can be caused if I over fill the box? will the excess just overflow? as I feel like just putting more fluid in.
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Post by harvey on Apr 4, 2015 19:56:10 GMT
but I am noticing that when I take a sharp left turn the gearbox seems to disengage like in reverse, which sounds like low fluid? Indeed it does sound like low fluid level. It can be difficlut to get a clear level reading, but if you follow the procedure I outlined previously it can be done. I wouldn't advise just adding fluid randomly.
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Post by p5rover on Apr 4, 2015 20:02:17 GMT
Looks like I will have to master the art of dipstick reading then
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Post by p5rover on Apr 4, 2015 21:00:13 GMT
Just a thought, is there a foolproof way of checking fluid? like draining the gearbox after a run and then filling up with 4 litres(if that's the right amount) as its 8 litres total? 4 litres in the convertor?
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Post by Phil Nottingham on Apr 4, 2015 21:12:42 GMT
Absolutely not - follow previous advice
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Post by p5rover on Apr 8, 2015 19:05:44 GMT
Something a bit odd is happening to my gearbox! I moved the car out of the garage today and went up the road to turn it around, but when I selected reverse gear it didn't engage and then after about 10 seconds it went in, so I pulled it back in the garage and let it sit for about 10 minutes and though I would check the gearbox fluid with the engine off, to get a rough idea how much oil is in there, when I dipped the oil it was dry! so I put 500ml in and it went up to the low mark, I then put another 500ml in and it went up to the high mark, I then decided to put another 500ml in with the thought that the gearbox oil level should be higher when the engine is not running as its not circulating around the gearbox? I then took it for a run, and the gear change into 2nd is a bit thumpy, so I checked the oil again with the engine running and it looks very high on the dipstick(about 1 inch over the high mark) so I am now well and truly confused. btw the gearbox is not leaking any fluid.
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Post by Deleted on Apr 8, 2015 19:51:29 GMT
Something a bit odd is happening to my gearbox! I moved the car out of the garage today and went up the road to turn it around, but when I selected reverse gear it didn't engage and then after about 10 seconds it went in, so I pulled it back in the garage and let it sit for about 10 minutes and though I would check the gearbox fluid with the engine off, to get a rough idea how much oil is in there, when I dipped the oil it was dry! so I put 500ml in and it went up to the low mark, I then put another 500ml in and it went up to the high mark, I then decided to put another 500ml in with the thought that the gearbox oil level should be higher when the engine is not running as its not circulating around the gearbox? I then took it for a run, and the gear change into 2nd is a bit thumpy, so I checked the oil again with the engine running and it looks very high on the dipstick(about 1 inch over the high mark) so I am now well and truly confused. btw the gearbox is not leaking any fluid. Transmission ATF level MUST be checked in PARK with the engine running. Others will confirm but I think the part of the gearbox where the dipstick enters is dry when the engine is not running so you've probably overfilled it. Check either the owners manual or the workshop manual for the correct procedure.
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Post by p5rover on Apr 8, 2015 20:13:39 GMT
the part of the gearbox where the dipstick enters is dry when the engine is not running so you've probably overfilled it. looks like I will have to drain it out again then
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Post by enigmas on Apr 9, 2015 11:28:35 GMT
Transmission ATF level MUST be checked in PARK with the engine running
It's not that rigid. There are slightly alternate methods. The Ford Motor Company of Australia used these gearboxes in their range of vehicle into the 1980s.
Follow the above instructions in the previous post then turn the engine off. You have 10 secs to check the level.
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Post by Deleted on Apr 9, 2015 12:00:40 GMT
Transmission ATF level MUST be checked in PARK with the engine running It's not that rigid. There are slightly alternate methods. The Ford Motor Company of Australia used these gearboxes in their range of vehicle into the 1980s. Follow the above instructions in the previous post then turn the engine off. You have 10 secs to check the level. Fair enough but I was only stating what both the owners instruction book and the 3.5 W/M supplement tell us to do and that is check the levels with the engine idling and unless someone is more familiar with the BW35 than I am, probably best to follow the written instructions.
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Post by p5rover on Apr 9, 2015 19:54:36 GMT
Thanks for your help, I have another question, I noticed that if you lift off the accelerator while going along that the gearbox changes up a gear, so today I tried driving and changing through all the gears by lifting off the accelerator, and doing it like this I could not even feel the gears change it changes gear very nicely doing this. Why does the gearbox not change gear this nicely when driving normally?
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Post by Phil Nottingham on Apr 9, 2015 21:08:14 GMT
Kickdown cable incorrectly adjusted but there could well be other problems now
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