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Location:
Brisbane
Registered:
July 2004
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How to keep ABS with man.cressida conversion?
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Thu, 05 August 2004 04:24
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Has a forum member any advice on this subject?Conversion planned for October.Jim from Sideshow is doing wiring but not sure how to keep ABS working .All I know on the subject is that Cressida ABS is 3 channel and it has something to do with the rear of the auto box.Any advice appreciated.Pete.Brisbane. 
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Location:
Brisbane
Registered:
May 2002
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Re: How to keep ABS with man.cressida conversion?
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Thu, 05 August 2004 05:24
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The auto box has an ABS sensor attached to the output shaft. When you do your manual conversion you'll need a similar sensor inside the gearbox, if an equivalent is available for the box you're using (are we talking W58 or R154 here?).
Otherwise, it might be possible to run a sensor off the tailshaft. I've never seen one of these sensors though so I'm not sure what you're up against.
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Toymods Club Treasurer
Location:
Sydney
Registered:
May 2002
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Re: How to keep ABS with man.cressida conversion?
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Thu, 05 August 2004 05:37
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An ABS sensor generally has approx 2mm square teeth with 2mm gaps.
They are this often to give quick reaction to when the sensor stops moving, ie locked up wheels.
If you are going to have to fit a separate sensor & tone wheel to the tailshaft, I'd think of a way to fit one to each half shaft at the rear with a divider on the circuit.
That way if either rear wheel locks up, the brakes will release (although it still will be both rear wheels) instead of when both rear wheels lokc up causing the tailshaft to stop.
This is why cars now have 4 channel ABS, not 3 channel.
I can get you a pic of the tone wheel on an ST205 front shaft if you want to see what they look like.
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I supported Toymods
Location:
I renounced punctuation
Registered:
May 2002
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Location:
Brisbane
Registered:
May 2002
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Re: How to keep ABS with man.cressida conversion?
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Thu, 05 August 2004 06:52
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Interesting info GT. It says the W58 has one, but my JZA80 box had no sensor in the area pictured? Perhaps it depends on the spec of the vehicle it came out of.
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I supported Toymods
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Registered:
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Re: How to keep ABS with man.cressida conversion?
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Thu, 05 August 2004 06:55
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Hmmm....these are US spec MA70 gearboxes. I honestly can't comment on the later stuff. I might go and have a look at my JZA80 boxes and see.
I think I better surf thru the Mkiv.com website as well.
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Location:
Brisbane
Registered:
May 2002
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Re: How to keep ABS with man.cressida conversion?
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Thu, 05 August 2004 06:59
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Now I think about it, the JZA80's probably had 4-channel ABS, hence the ABS sensors would be on the rear wheels not the gearbox.
So in other words, our friend will have to find a manual gearbox from a MA70/JZA70 fitted with ABS, or some other manual Toyota with 3-channel ABS. Might be a tough ask!
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I supported Toymods
Location:
I renounced punctuation
Registered:
May 2002
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Location:
Brisbane
Registered:
May 2002
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Re: How to keep ABS with man.cressida conversion?
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Thu, 05 August 2004 07:22
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But do all JZA70's have ABS? I know it was optional on MA70's (and rarely specified); it might have been standard on the JZA70 though.
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Location:
Adelaide, SA
Registered:
May 2002
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Re: How to keep ABS with man.cressida conversion?
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Thu, 05 August 2004 07:27
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| Norbie wrote on Thu, 05 August 2004 16:52 |
But do all JZA70's have ABS? I know it was optional on MA70's (and rarely specified); it might have been standard on the JZA70 though.
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Mine didn't (from my vauge memory). Then again it was a jza70R so maybe different.
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I supported Toymods
Location:
I renounced punctuation
Registered:
May 2002
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Re: How to keep ABS with man.cressida conversion?
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Thu, 05 August 2004 07:45
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| Norbie wrote on Thu, 05 August 2004 17:22 |
But do all JZA70's have ABS? I know it was optional on MA70's (and rarely specified); it might have been standard on the JZA70 though.
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Hopefully, it'll be as simple as fitting the chopper wheel and sensor from the back of his A340 to the output shaft of the R154.
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Location:
Brisbane
Registered:
November 2002
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Re: How to keep ABS with man.cressida conversion?
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Thu, 05 August 2004 12:08
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R's had no abs/cruiser to my knowledge
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Location:
Brisbane
Registered:
July 2004
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Location:
Montrose, VIC
Registered:
May 2002
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Re: How to keep ABS with man.cressida conversion?
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Fri, 06 August 2004 00:16
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Hmm, if anyone discovers an easy way to fit a chopper disc to a W box using factory bits, do please let me know... Saves me needing to make bits for the back of my W55.
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I supported Toymods
Location:
I renounced punctuation
Registered:
May 2002
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Re: How to keep ABS with man.cressida conversion?
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Fri, 06 August 2004 00:21
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Shinny, get someone who knows how to use the EPC to get the part numbers for the bits from an MA70 W58.
Buy bits.
Fit to W5x.
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Registered:
August 2004
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Re: How to keep ABS with man.cressida conversion?
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Fri, 06 August 2004 01:54
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manmx83 you have PM
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