Hey guys!

After installing my new water pump I wanted to fit the mechanical fan base and pulley and noticed, that the bearings on both are shot. They grind nastily...

As it looks, Jaguar would like to, but can't, sell the tensioner arm (with the pulley on it) as a complete unit. SNG has an alternative product, being a pulley with bearing in it which is then screwed to the arm.

Has anyone replaced their tensioner arm pulley with this part?

At the same time, the bearing on which the mechanical fan sits is well worn. You can move it a good bit around and that doesn't seem right (definately isn't right ). Jaguar part number is EAC3437 BUT it is neither available from Jaguar, nor from SNG...

I've been searching if there are any cross references but I can't find anything. Does anyone have an idea what would work instead? I'm useless when it comes to bearings... I know how they work but don't ask me for sizes...

Thanks!

Damien

 

Damien:


"Steady as she goes", a sea faring term by a landlubber, me!!!


The bearing in the pulley seems a logical solution. That would be my choice.


As to the other, I have two comments. One biased:


1. Dump the mechanical fan and go Efan/s. My lump enjoys them.


2. Do you have a bearing and seal shop within reach. A knowledgable (sp) counter man might have a fit.


Carl

 

E-fans would be my choice, but then again, I am limited due to regulations regarding alterations in order to get a historic plate... A few little bits can be done but not much.

Regarding the bearing shop: nope. Nothing like that here. I am also a bit worried, that it is a special imperial sized bearing, in some weird 13/16" size... I was hoping someone had changed one lately... :/

 

Is it a discrete bearing? I.e a separate piece pressed into a housing? It's been a long time since I looked at mine.

Bearings are remarkably interchangable, if there are numbers on it you can order by that number and get another one. All the major makers produce both metric and imperial sized bearings, supply shouldn't be a problem.

 

I see a reference here: V12 Cooling Fan Bearing(EAC3437) to using a WB07364 bearing, which is a ***/SKF part number. I didn't see a listing for that number in their catalog though:http://www.schaeffler.com/remotemedi...i131_de_en.pdf

I would pull it out and then match up the dimensions, or order by the number you will find on it.

Another thought: Jaguar has different parts streams depending upon where you are. I have found parts that were NLA through Jaguar Canada were available from Jaguar UK. I saw a few USA dealers still listing that part - doesn't mean it's still available if they tried to order one though. Perhaps try a place like Coventry West to see if they can source one. I know you'd prefer a European source, but that may be an option. Otherwise, try and find an industrial supplier in Germany who could order by the number you'll find on your old bearing. I'm 100% certain it will not be a Jaguar part number on it, but the number of whoever made it.

 

So you recommend pressing it out hoping to find some numbers on it?

 

Absolutely. It has to come out anyway if you're replacing it!

Quick search came up with a few places to try:
Antriebstechnik, Kupplungen, Wälzlager, Getriebe - Startseite
PV Technik / Home

And 8 others that didn't have websites. List found here: http://www.skf.com/ca/en/our-company...ist/index.html

I think it's actually an *** part, the distributor in Bremen is Hausmann + Haensgen

 

As it looks, the original measurements (being 53.8 mm housing length and 38.1 mm width) aren't available. Also the shaft will need to be shortend...

Cheers for the hints so far Jayboi

 

Daim,

My bearing was also shot so I installed the pulley and bearing replacement that SNG Barret offers. It works well. I don't think you will be able to press out the shaft however. I had to drill it out on a mill.

Paul

 

The press is needed for the fan hub bearing

But nice to hear you fitted the arm bearing. Was it a straight forward job? Or was it a fiddly thing?

Cheers

Damien

 

It was very strait forward. My bearing was in such a bad state that it fall off the shaft when I removed the fan belt.

 

Ouch! Then it is understandable that you changed...

 

So then, I've removed the larger bearing pressed into the housing. Just need to measure up and then compare to some standard bearings available. The shaft will have to be shortend on one end, obviously, as they are water pump bearings and we all know, a water pump has the impeller end as well as the drive end (cambelt/fanbelt/chain) and this part lacks the second end...

The other bearing (which is replaced with wheel nowadays) is a little different. I'm not sure that the bearing is pressed into the arm. It looks as if the bearing is pressed onto a cast in pin... Before I crack the part, does the bearing come apart from the tensioner arm or from a pin on the arm?

 

So then, the bearing isn't from SKF or ***... It is from RHP model FPS 380.

So, now to find a source...

 

RHP = Ransome Hoffman and Pollard, now sadly gone or merged, one of the finest bearing makers in the world. It will be a standard size, Daim, that is for sure. Jaguar would certainly have used a standard off the shelf bearing.


Greg

 

Well, RHP still exist under AKN. They are actually - going by my researches - more demanded than as they were before AKN took over...

Sizes seem rather standard. The shaft though isn't exactly. *** does offer a bearing NEARLY the same...

I've also contacted a company in Britain regarding the bearings, who claim they can get hold of any RHP bearing... No matter what the outcome is, I've got some alternatives. Mostly with a longer housing which should allow more sideway force on the shaft...

 

Sorry, not AKN but NSK...