water pump seal???

jerry · 29-01-2022, 04:42 PM

Got a new seal for my S4 water pump one side is black rubber other side looks like white ceramic which way round does it go ,,old seal was completely different when it came out 2 years ago..

I think its rubber side into the case and ceramic side onto impellor spring ??? but ??

Darren69 · 30-01-2022, 09:39 AM

Any good for you?

jerry · 30-01-2022, 09:58 AM

Yes Darren thats what I thought its logical as the rubber goes inside it seals engine oil from coolant and the ceramic is against the spring

Thanks mate

Darren69 · 30-01-2022, 11:43 AM

That would be my guess too. I still have the Red Barons chapter bookmarked from when you were having problems taking apart the impeller a few months ago. I beat Luddite to the post, lol!

Hope the rebuild goes ok and that you will post your progress as you go?

It would be nice to see a detailed S4 rebuild thread for a change, instead of the usual M900 or custom ones, which have been very interesting but I think it's time to move on a bit. These are the next classic Monsters after all?

jerry · 31-01-2022, 07:41 AM

Im flying to Thailand next week ,, still got to finish cleaning engine crank cases and barrels and paint them , they did not need disassembling as the inside is still perfect ,, valve shims are all in spec as its copression ,,so its a hand jobby , the side covers are powder coated ,, the frame , wheels are powder coated in silver ,, the tank and seat cover is Ducati red fresh paint ,the rest of the body work is CF,, got most of the spares I need ,, I will be replacing all the JPT connectors and crank sensor as they were all crumbling from age and UV ,, but I still dont know why it would not run ,, I think it was the knackered connectors ,,to efi as it ran with starter fluid and petrol blasted into the inlets ,, fuel pump is ok but I have a spare ,,pressure regulator seems fine,, will be cleaning the injectors and putting in new seals,,

The Ohlins prc46 has been fully refurbished ,,and new swing arm bearings , wheel bearings and various other new bits will be fitted ,including steering damper , tail chop has been reversed as in Thailand not having a decent rear mudguard was really messy

I will be there for at least 4 weeks maybe 6 so should easily get it all together ,and it will look almost new and fully refreshed , will it run ??? hmmm

Darren69 · 31-01-2022, 10:01 AM

There's a lot of things that will stop these bikes running and most of them are electrical, they either work or they don't. No pesky carbs to have to fiddle about with too though!

jerry · 31-01-2022, 06:04 PM

Anyone know the oring size for Monster S4 fuel injectors there is 2 orings viton of course

Luddite · 31-01-2022, 07:12 PM

Quote:

Originally Posted by jerry

Anyone know the oring size for Monster S4 fuel injectors there is 2 orings viton of course

These are the usual suspects...

http://www.ukmonster.co.uk/monster/s...ad.php?t=58345

Luddite · 31-01-2022, 07:39 PM

By the way, those o-rings I mentioned are 7.66 X 1.78 mm

https://www.corsasbk.com/product/88641181a/

jerry · 01-02-2022, 09:35 AM

Quote:

Originally Posted by Luddite

These are the usual suspects...

http://www.ukmonster.co.uk/monster/s...ad.php?t=58345

no i meant for the actual weber /bosch injectors, im going to clean and service them.

one is about 20mm the lower one is about 12mm by eye i dont have them handy but want to get some to take to Thailand

Luddite · 01-02-2022, 10:51 AM

Sorry, Jerry, I misunderstood.

I don't know the sizes I'm afraid but, if the injector is the green topped version, I think it's a Marelli IW724 so you could try an auto factor or an injector cleaner business.

I found this set at Gotham Cycles. You could maybe message them to ask for details.

https://www.ebay.co.uk/itm/Ducati-74...-/334141436340

jerry · 01-02-2022, 12:44 PM

Thanks Luddite , yep those are the ones I just need the size ,, will hunt around a bit

jerry · 02-02-2022, 12:46 PM

Ducati only supply them as a sevice £75 no stock anyway but ridiculous price ,, asked 4 fuel injector firms but no one know the size for IWM 724 as they are not common type one guy does know the size but he wont tell me as he wants me to send the injector to him for full refurb hmmm ??? I will take the old ones off in Thailand ,I do have a kit of assorted Viton green orings but if its a weird size I may be able to get new ones there ,,
nothing is straightforward

Luddite · 02-02-2022, 02:27 PM

This place in Devizes reconditions injectors
www.injectortune.co.uk

and has IW724s in stock

https://www.ebay.co.uk/itm/DUCATI-ST...-/165136309038

So maybe try them?

Darren69 · 02-02-2022, 02:56 PM

Quote:

Originally Posted by jerry

Ducati only supply them as a sevice £75 no stock anyway but ridiculous price ,, asked 4 fuel injector firms but no one know the size for IWM 724 as they are not common type one guy does know the size but he wont tell me as he wants me to send the injector to him for full refurb hmmm ??? I will take the old ones off in Thailand ,I do have a kit of assorted Viton green orings but if its a weird size I may be able to get new ones there ,,
nothing is straightforward

That both amuses and annoys me, that he thinks he can generate business by witholding such information. You can buy bags of o rings of various sizes for a few quid so when you find the right size please start a thread with the info?

They're not hard to refurbish yourself if you can build some sort of test rig.
.

29-01-2022, 04:42 PM	#1
jerry Old Git Join Date: May 2006 Location: Cricklade Bike: Multiple Monsters Posts: 2,814	water pump seal??? Got a new seal for my S4 water pump one side is black rubber other side looks like white ceramic which way round does it go ,,old seal was completely different when it came out 2 years ago.. I think its rubber side into the case and ceramic side onto impellor spring ??? but ?? __________________ MONSTERMAN

30-01-2022, 09:39 AM	#2
Darren69 Transmaniacon MOC Join Date: Sep 2013 Location: Sutton In Ashfield Bike: Multiple Monsters Posts: 6,022	Any good for you? __________________ Roast Beef Monster! Termignoni and Bucci - Italian for pipe and slippers! S4 Fogarty, S4R 07T, 748, Series 1 Mirage

30-01-2022, 09:58 AM	#3
jerry Old Git Join Date: May 2006 Location: Cricklade Bike: Multiple Monsters Posts: 2,814	Yes Darren thats what I thought its logical as the rubber goes inside it seals engine oil from coolant and the ceramic is against the spring Thanks mate __________________ MONSTERMAN

30-01-2022, 11:43 AM	#4
Darren69 Transmaniacon MOC Join Date: Sep 2013 Location: Sutton In Ashfield Bike: Multiple Monsters Posts: 6,022	That would be my guess too. I still have the Red Barons chapter bookmarked from when you were having problems taking apart the impeller a few months ago. I beat Luddite to the post, lol! Hope the rebuild goes ok and that you will post your progress as you go? It would be nice to see a detailed S4 rebuild thread for a change, instead of the usual M900 or custom ones, which have been very interesting but I think it's time to move on a bit. These are the next classic Monsters after all? __________________ Roast Beef Monster! Termignoni and Bucci - Italian for pipe and slippers! S4 Fogarty, S4R 07T, 748, Series 1 Mirage

31-01-2022, 07:41 AM	#5
jerry Old Git Join Date: May 2006 Location: Cricklade Bike: Multiple Monsters Posts: 2,814	Im flying to Thailand next week ,, still got to finish cleaning engine crank cases and barrels and paint them , they did not need disassembling as the inside is still perfect ,, valve shims are all in spec as its copression ,,so its a hand jobby , the side covers are powder coated ,, the frame , wheels are powder coated in silver ,, the tank and seat cover is Ducati red fresh paint ,the rest of the body work is CF,, got most of the spares I need ,, I will be replacing all the JPT connectors and crank sensor as they were all crumbling from age and UV ,, but I still dont know why it would not run ,, I think it was the knackered connectors ,,to efi as it ran with starter fluid and petrol blasted into the inlets ,, fuel pump is ok but I have a spare ,,pressure regulator seems fine,, will be cleaning the injectors and putting in new seals,, The Ohlins prc46 has been fully refurbished ,,and new swing arm bearings , wheel bearings and various other new bits will be fitted ,including steering damper , tail chop has been reversed as in Thailand not having a decent rear mudguard was really messy I will be there for at least 4 weeks maybe 6 so should easily get it all together ,and it will look almost new and fully refreshed , will it run ??? hmmm __________________ MONSTERMAN

31-01-2022, 10:01 AM	#6
Darren69 Transmaniacon MOC Join Date: Sep 2013 Location: Sutton In Ashfield Bike: Multiple Monsters Posts: 6,022	There's a lot of things that will stop these bikes running and most of them are electrical, they either work or they don't. No pesky carbs to have to fiddle about with too though! __________________ Roast Beef Monster! Termignoni and Bucci - Italian for pipe and slippers! S4 Fogarty, S4R 07T, 748, Series 1 Mirage Last edited by Darren69; 31-01-2022 at 10:18 AM..

31-01-2022, 06:04 PM	#7
jerry Old Git Join Date: May 2006 Location: Cricklade Bike: Multiple Monsters Posts: 2,814	Anyone know the oring size for Monster S4 fuel injectors there is 2 orings viton of course __________________ MONSTERMAN

31-01-2022, 07:39 PM	#9
Luddite Registered User Join Date: Aug 2011 Location: Southampton Bike: M1100evo Posts: 2,465	By the way, those o-rings I mentioned are 7.66 X 1.78 mm https://www.corsasbk.com/product/88641181a/

01-02-2022, 10:51 AM	#11
Luddite Registered User Join Date: Aug 2011 Location: Southampton Bike: M1100evo Posts: 2,465	Sorry, Jerry, I misunderstood. I don't know the sizes I'm afraid but, if the injector is the green topped version, I think it's a Marelli IW724 so you could try an auto factor or an injector cleaner business. I found this set at Gotham Cycles. You could maybe message them to ask for details. https://www.ebay.co.uk/itm/Ducati-74...-/334141436340

01-02-2022, 12:44 PM	#12
jerry Old Git Join Date: May 2006 Location: Cricklade Bike: Multiple Monsters Posts: 2,814	Thanks Luddite , yep those are the ones I just need the size ,, will hunt around a bit __________________ MONSTERMAN

02-02-2022, 12:46 PM	#13
jerry Old Git Join Date: May 2006 Location: Cricklade Bike: Multiple Monsters Posts: 2,814	Ducati only supply them as a sevice £75 no stock anyway but ridiculous price ,, asked 4 fuel injector firms but no one know the size for IWM 724 as they are not common type one guy does know the size but he wont tell me as he wants me to send the injector to him for full refurb hmmm ??? I will take the old ones off in Thailand ,I do have a kit of assorted Viton green orings but if its a weird size I may be able to get new ones there ,, nothing is straightforward __________________ MONSTERMAN

02-02-2022, 02:27 PM	#14
Luddite Registered User Join Date: Aug 2011 Location: Southampton Bike: M1100evo Posts: 2,465	This place in Devizes reconditions injectors www.injectortune.co.uk and has IW724s in stock https://www.ebay.co.uk/itm/DUCATI-ST...-/165136309038 So maybe try them?