| Author | Message | ||
     Robert C Unregistered guest Posted From: 121.45.92.143 |
Hi guys, I need to replace the six inch fan coupling. I note there's an alternate for the eight inch, but can't find one for six inch. Is there such a thing? (Message approved by david_gore) | ||
| Brian Vogel Prolific User Username: guyslp Post Number: 300 Registered: 6-2009 |
Robert, Are you referring to the viscous fan clutch/viscous coupling, shown as number 41 in this screenshot from the parts manual?:  I know that many have used the Hayden 2747 for "one series" Shadows, but there are at least two different styles in that era. What is your chassis number? In any case, if this is what you're talking about, take a look at the Hayden Fan Clutch Catalog and start playing the "match up all the pertinent dimensions" game that I had to play for my Silver Wraith II. Brian | ||
| Omar M. Shams Grand Master Username: omar Post Number: 1264 Registered: 4-2009 |
Dear Brian, I need to buy a Hayden for my Wraith II. What part number did you end up buying? Mine is a 78. Thanks Omar | ||
| Brian Vogel Grand Master Username: guyslp Post Number: 2368 Registered: 6-2009 |
Omar, From the RR & Bentley Parts, Repair, Restoration & Other Resources Compilation: Substitute Fan Clutch & Fan Blades for “two series” SY cars (Chassis numbers above 30000): Derale 17118 metal fan clutch fan and the Hayden 2706 viscous fan clutch It is possible to fit a Hayden 2747 with the original fan blades if you have a simple metal adapter ring machined. To see both of these solutions in photographs see the following thread on the RROC-Australia Discussion forums: Alternate fan and/or viscous fan clutch for the "Two Series" cars | ||
| Omar M. Shams Grand Master Username: omar Post Number: 1266 Registered: 4-2009 |
Thanks Brian. Is there a simple clutch that will fit the original fan and the water pump without the need for an adapter? Many thanks for your help as always Brian. | ||
| Brian Vogel Grand Master Username: guyslp Post Number: 2369 Registered: 6-2009 |
Omar, Try as I might, I was never able to locate a fan clutch that would fit the original RR fan other than the one from Crewe Original. Believe me, I tried. That ring is only for the fan end of things. The attachment to the water pump is OK. If my OEM fan had not been destroyed I would have gone the ring adapter route myself. | ||
| Omar M. Shams Grand Master Username: omar Post Number: 1267 Registered: 4-2009 |
Thanks Brian. what about working it out from here? http://www.haydenauto.com/upload/HaydenAuto/Documents/Cat_Hayden/2007-hayden-fan-clutch.pdf Can we not work backwards from this document? | ||
| Brian Vogel Grand Master Username: guyslp Post Number: 2370 Registered: 6-2009 |
Omar, Been there, done that, with several different catalogs. I was completely unsuccessful in finding any "over the counter" VFC that matched the weird hole pattern that Crewe used on our fans for the SY2 series cars. I could have missed something, and it can't hurt to have another set of eyes, but definitely pay strict attention to the dimensional data and to what that would mean as far as the fan mounting position with regard to the shroud. If you were to find a commercially available "plug and play" replacement you'd be doing the Shadow owning community a huge favor! Brian | ||
| ross kowalski Grand Master Username: cdfpw Post Number: 504 Registered: 11-2015 |
Kelly O if it's truly unobtanium. | ||
| Kelly Opfar Prolific User Username: kelly_opfar Post Number: 173 Registered: 7-2004 |
Lemme see what I can do... | ||
| ross kowalski Grand Master Username: cdfpw Post Number: 505 Registered: 11-2015 |
Kelly, I was only making the point that it would be possible to machine one, not actually volunteering you! BTW, I finally got around to using the puller, thanks again. | ||
| richard george yeaman Grand Master Username: richyrich Post Number: 776 Registered: 4-2012 |
And I got to use my brake pump removal tool. Richard. | ||
| Christopher Williams Yet to post message Username: christopher_williams Post Number: 1 Registered: 5-2017 |
I was able to cross reference the original fan clutch for the Shadow II originally equipped with the plastic cooling fan. I tried the Hayden fan and clutch, and was having difficulties with proper a/c cooling in town, rechecking everything found out to not be moving enough air at idle and low engine speeds. It crosses to a Range Rover Classic, part number #ERC2849. An aftermarket version is available, which I found on Ebay's UK site. Purchased and installed, and now things are back to normal. Ebay link: http://www.ebay.co.uk/itm/Land-Rover-Series-3-Viscous-Fan-Coupling-ERC2849-/251893516317?epid=1447881138&hash=item3aa606081d:g:amUAAOSw241Ydg3V | ||
| Brian Vogel Grand Master Username: guyslp Post Number: 2371 Registered: 6-2009 |
Christopher, Interesting. I can only find one vendor for this part (at least quickly) in the USA and their price is outrageous: https://parts.landroverpalmbeach.com/p/Land-Rover_1989_Range-Rover/Engine-Cooling-Fan-Clutch-For-7-Blade-Fan-To-Engine-38D27237B/48714910/ERC2849.html While there are at least several in the UK and the lowest price I've found so far is Ł55: http://www.island-4x4.co.uk/viscous-coupling-7094-blade-britpart-erc2849-p-3681.html It's great if a straight replacement has been found. Brian | ||
| Omar M. Shams Grand Master Username: omar Post Number: 1269 Registered: 4-2009 |
Dear Christopher, I would love to buy one of these clutches for my Wraith II if it truly fitted the car - but it does not. The photos I have seen of the ERC2849 all show it to have a through hole in the centre. If so - how will the clutch fit on the water pump? where is the flange? Thanks Omar | ||
| Christopher Williams New User Username: christopher_williams Post Number: 2 Registered: 5-2017 |
Omar, unless your SWII is different than a Shadow II, the flange is a separate piece. The hub is bolted to the clutch, and the fan is bolted to the clutch. The fan, clutch, and hub are 3 separate pieces. Here is a diagram from Introcar showing the pieces and how they assemble. https://www.introcar.co.uk/lookbook/water-pump-fan-viscous-coupling-fan-clutch-chassis-numbers-30000-52000-li496 Once you remove it from the car and take a look at the hardware, its clear how it all goes together. | ||
| Christopher Williams New User Username: christopher_williams Post Number: 3 Registered: 5-2017 |
Brian, I have had it fitted to my car for the last two months and about 400 miles, and its been extremely warm here in Dallas this summer. So far, it is doing the job well! My part did arrive in a BritPart box, but only had the ERC2849 part number. I wanted to exhaust all resources before I would pay $300-400ish USD for a fan clutch, and I normally seek out alternatives where possible, as long as it does not alter the performance or safety of the vehicle. | ||
| Omar M. Shams Grand Master Username: omar Post Number: 1270 Registered: 4-2009 |
Dear Christopher, My viscous coupling on my 78 Wraith II is a one piece unit. Now I am wondering if I have the wrong clutch on my car. What do others have? a single unit or a 2 piece unit like the one in the introcar link above? Most Intrigued. | ||
| Christopher Williams New User Username: christopher_williams Post Number: 4 Registered: 5-2017 |
Omar, the earlier cars, before VIN 30000 had a steel fan with a single piece fan clutch. The second post of this thread, Brian posted a picture of it from the parts manual. Here is another link to Introcar's diagram showing the earlier, single piece unit. https://www.introcar.co.uk/lookbook/water-pump-fan-viscous-coupling-fan-clutch-chassis-numbers-11111-26700-li495 Your car being a 1978 model should be well past the VIN split at 30,000. Does your car have a plastic or steel fan blade? | ||
| Brian Vogel Grand Master Username: guyslp Post Number: 2372 Registered: 6-2009 |
Omar, I still have the unit from LRK37110 out in my garage. Let me have a look to see how the VFC and its pedestal mate. I'd thought it was single piece but I could be entirely mistaken. It's been a couple of years since I was working on this bit of the car. | ||
| Brian Vogel Grand Master Username: guyslp Post Number: 2373 Registered: 6-2009 |
Omar, Here are the photos. I had already removed the VFC from its pedestal mount way back when I was working on this part of the car.       Brian | ||
| Omar M. Shams Grand Master Username: omar Post Number: 1272 Registered: 4-2009 |
perfect. many many thanks Brian. I was inspired and looked into my pile of bits from the shadow I chopped up and found exactly the same item as shown in your superb photos. The centre bolt on mine however is seized so it will take some patience to remove. I will buy the land Rover coupling as suggested by Christopher. Thanks Gents | ||
| Randy Roberson Grand Master Username: wascator Post Number: 744 Registered: 5-2009 |
Like Brian I searched high and low for a generic replacement for the clutch in my 1970 Car but did not find one. I had a used one I bought when I ran across it and I used it: works fine. Hard to believe this clutch was not used on some other application circa 1970. I wasn't able to find one though. |
