Duratec clutch and mondeo slave cylinder

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Nitrogeno25

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posted on 8/10/11 at 04:47 PM

Duratec clutch and mondeo slave cylinder

I bought an AP racing clutch kit for my duratec/type 9 conversion (Raceline bellhousing).

I also get the mondeo slave cylinder:

And try the pressure plate (CP5905-1) over the slave cylinder. But I'm not sure the cylinder is large enough for the clutch spring.

Any ideas?

Thank you!

flak monkey

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posted on 8/10/11 at 05:37 PM

Once the clutch is assembled the fingers will be flat, they should then sit on the thrust face of the release bearing OK.

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needforspeed

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posted on 8/10/11 at 05:48 PM

yep i think itl be ok aswel

Nitrogeno25

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posted on 8/10/11 at 06:00 PM

quote:
Originally posted by flak monkey
Once the clutch is assembled the fingers will be flat, they should then sit on the thrust face of the release bearing OK.

Thank you very much for the (very) fast reply!

I thought of that, so fully assembled the clutch and note the finger are indeed almost flat.

I measured the diameter of the thrust face and it's around 53mm and the diameter between the pressure plate fingers is 45mm (47mm disassembled). I hope 4mm per side being enough for correct operation!!

Thanks again.

[Edited on 8/10/11 by Nitrogeno25]

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posted on 8/10/11 at 06:03 PM

The main proble is getting the spacing correct, when we did this conversion using the kit available at the time (designed for use with the Pinto) the spacer was too short and popped the cylinder we have since had the spacer modified and it works brilliantly) this id fitted in a type nine to a silvertop zetec ap racing clutch etc No other problems

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pjay

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posted on 8/10/11 at 09:34 PM

Hi - are you referring to the diameter being a concern?

If so it does look a bit on the edge. I don't think it's the Mondeo slave cylinder that's recommended. I recall something about the V6 version or a SAAB job but I could be wrong.

Nitrogeno25

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posted on 9/10/11 at 03:27 AM

quote:
Originally posted by pjay
Hi - are you referring to the diameter being a concern?

If so it does look a bit on the edge. I don't think it's the Mondeo slave cylinder that's recommended. I recall something about the V6 version or a SAAB job but I could be wrong.

Yes, I'm not sure about the diameter.

Whats the difference with the v6 mondeo?? As for the SAAB unit, I think it's design for a flat finger pressure plate. My pressure plate has curved fingers and as far as I know, a flat bearing is needed.

Thanks!

pjay

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posted on 9/10/11 at 07:13 AM

I think the main difference is the diameter but I'm not a expert on this since I've used a cable clutch.

The CP5905-1 is considered a flat spring cover and therefore strictly speaking you'll need a round faced release bearing surface. Have a look at a Pinto clutch cover for an example of 'round spring fingers'.

Take a look at the following thread which is about the cable clutch setup but discusses the CP5905-1 and round vs. flat faced release bearings.

http://viatron.websitetoolbox.com/post/Duratec-cable-clutch-issue-Raceline-FW-RWD-bellhousing-5171670?&trail=50&highlight=duratec+clutch

[Edited on 9/10/11 by pjay]

big-vee-twin

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posted on 9/10/11 at 08:10 AM

The SAAB bearing has a rounded face as opposed to the Mondy one which is flat see pic below

SAAB one is indeed used for flat fingers on the pressure plate

[img]

Duratec clutch cylinder [/img]

[Edited on 9/10/11 by big-vee-twin]

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Nitrogeno25

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posted on 11/10/11 at 07:13 PM

quote:
Originally posted by pjay
I think the main difference is the diameter but I'm not a expert on this since I've used a cable clutch.

The CP5905-1 is considered a flat spring cover and therefore strictly speaking you'll need a round faced release bearing surface. Have a look at a Pinto clutch cover for an example of 'round spring fingers'.

Take a look at the following thread which is about the cable clutch setup but discusses the CP5905-1 and round vs. flat faced release bearings.

http://viatron.websitetoolbox.com/post/Duratec-cable-clutch-issue-Raceline-FW-RWD-bellhousing-5171670?&trail=50&highlight=duratec+clutch />
[Edited on 9/10/11 by pjay]

As far as I can found out, the diameter is the same, lenght is about 20mm larger on the V6 model.

As for the clutch cover, why the CP505-1 is considered a flat spring cover? I'm going to get some pictures this night.

Many thanks!

[Edited on 11/10/11 by Nitrogeno25]

pjay

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posted on 11/10/11 at 07:56 PM

Check out these pictures from Mark's (Tiger Super Six) car - shows the Pinto type clutch cover springs for comparison:

http://viatron.websitetoolbox.com/file?id=1120539
http://viatron.websitetoolbox.com/file?id=1120538

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