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JCB Special Hydraulic Fluid

Last post by essexpete « Thu May 14, 2026 10:55 pm
Replies: 11
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by TomRon » Mon Sep 03, 2012 3:33 pm

First post

hello!

In my operators manual of the 3C there is stated to use only "JCB Special Hydraulic Fluid"

I have found the JCB Lubricant brochure...

Last post

I think that probably an ISO 46 might be better in a old system with wear. I always keep a barrel of 46, goes in all the owd tat that I have.
11 Replies

44393 Views

Last post by essexpete View the latest post
Thu May 14, 2026 10:55 pm
Jcb 3cx 1987 - which battery?

Last post by essexpete « Thu May 14, 2026 10:49 pm
Replies: 10
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by Classic3CX » Fri Aug 09, 2024 3:52 pm

First post

Hi, as title states, which battery would one recommend for a 1987 3cx machine, at the moment?

The standard specs seem to be be;
105Ah
750 cold...

Last post

Absolutely agree with Ian, the Mahle (formerly Iskra) geared starters absolutely transform starting. The engine spins faster, the starter has more...
10 Replies

13681 Views

Last post by essexpete View the latest post
Thu May 14, 2026 10:49 pm
Diesel fuelling problems on Perkins 3 cylinder

Last post by cbchuter « Thu May 14, 2026 7:50 am
Replies: 7
by Simon_F3 » Wed Oct 15, 2025 12:03 pm

First post

Hi all, I'm after some advice and/or reassurance please :) I have a Massey Ferguson MF40 digger with the Perkins 3 cylinder diesel engine, which has...

Last post

Sounds like you've already done the heavy lifting, but honestly, that "cutting out like the stop lever was pulled" on a Perkins 3-cylinder...

7 Replies

9119 Views

Last post by cbchuter View the latest post
Thu May 14, 2026 7:50 am
Tyre valve evolution (water type)

Last post by Billy26F5 « Wed Dec 10, 2025 10:46 pm

by Billy26F5 » Wed Dec 10, 2025 10:46 pm

I'm sure many of you will know that there are two types of water tyre valve, one was used through the 60's, it was later replaced with the current...

0 Replies

2038 Views

Last post by Billy26F5 View the latest post
Wed Dec 10, 2025 10:46 pm
track problems

Last post by Jeremy Rowland « Sun Sep 21, 2025 9:39 pm
Replies: 1
by Baloo » Sun Sep 21, 2025 12:49 pm

First post

my sumitomo decided to break just when i needed it, had to hire a machine in for a day as i was stuck, they never seem to break when they are parked...

Last post

Andy, I am no expert on tracks, but perhaps if you have a half decent pattern then you could get a new pin turned at a local engineering company? I...

1 Replies

3195 Views

Last post by Jeremy Rowland View the latest post
Sun Sep 21, 2025 9:39 pm
V8 Perkins water pump

Last post by gecko.cx « Tue Apr 08, 2025 1:27 am
Replies: 1
by hubert » Mon Apr 07, 2025 2:51 pm

First post

Dismantling V8 Perkins water pump. Got the big nut removed & also the fan belt pulley & removed the circlip. Tried to press the shaft and...

Last post

Don't know the '8, so pics would be interesting.
Is a rebuild kit available? When I repleced the pump on my 1004, the rebuild kit was discontinued...

1 Replies

21297 Views

Last post by gecko.cx View the latest post
Tue Apr 08, 2025 1:27 am
Renew pistons and liners fiat 880 5

Last post by fiat 880 5 « Thu Sep 12, 2024 11:22 am

by fiat 880 5 » Thu Sep 12, 2024 11:22 am

Good morning,

We bought a fiat 880 5 with the piston stuck due to water on top of the pistons ( rainwater via exhaust)
It was outside for 10 years...

0 Replies

57729 Views

Last post by fiat 880 5 View the latest post
Thu Sep 12, 2024 11:22 am
Leyland 600 head pics please

Last post by gamble.greg « Wed Jul 24, 2024 10:54 pm

by gamble.greg » Wed Jul 24, 2024 10:54 pm

Hi All, hope your dramas are small..............The joys of putting someone else's job back together, Leyland 600, 2 heads, the rocker gear and...

0 Replies

51215 Views

Last post by gamble.greg View the latest post
Wed Jul 24, 2024 10:54 pm
jcb 3cx No Forward/Reverse/Start, parking brake buzzer is ON

Last post by gecko.cx « Tue Jul 02, 2024 6:31 pm
Replies: 2
by mickefix » Sat Jun 15, 2024 1:51 pm

First post

Fuse A5- 10 Amp blown as soon as I put in gear 2. All others work without fuse A5 blowing. The handbrake alarm sounds all the time regardless of...

Last post

The handbrake alarm sounds all the time regardless of position. but stops when the machine starts.
I've got the previous model to yours and there is...

2 Replies

9070 Views

Last post by gecko.cx View the latest post
Tue Jul 02, 2024 6:31 pm
JIC couplings

Last post by hair bear « Sun Mar 24, 2024 10:22 pm
Replies: 7
by hair bear » Fri Oct 06, 2023 10:39 pm

First post

Is there a trick to get JIC couplings to seal?
Just changed a deceased ram and the old couplings won't seal to the new ram. The ram fittings are...

Last post

It's worth a thought. Unfortunately the toys have had to take a back seat for a couple of weeks but hopefully I'll get back to it soon.

7 Replies

23956 Views

Last post by hair bear View the latest post
Sun Mar 24, 2024 10:22 pm
Fuel cans?

Last post by hair bear « Sun Mar 24, 2024 10:13 pm
Replies: 2
by hair bear » Sat Mar 23, 2024 11:40 pm

First post

After a couple of fuel starvation issues on the 550 I decided to drain the tank and blow all the lines out. Lots of crappola in the system so a job...

Last post

What's just as annoying, I have neighbours who like to stir things at any opportunity. Since I've had it it's been run on derv as it's taxed...

2 Replies

8225 Views

Last post by hair bear View the latest post
Sun Mar 24, 2024 10:13 pm
Hymac 360C

Last post by MikeJordan « Tue Sep 12, 2023 1:41 pm
Replies: 3
by allinking » Thu Jan 26, 2017 5:24 pm

First post

Need some help with our Hymac 360c first of it has a Leyland engine am I right in thinking it is a 4/98?

I have rebuilt all the rams with new seals...

Last post

anybody replaced the steering ball joints on the hymac 370c ?
looking for replacments , having a hard job getting the replacment parts

3 Replies

12401 Views

Last post by MikeJordan View the latest post
Tue Sep 12, 2023 1:41 pm
Alternator tell-tail light conundrum

Last post by Slooby « Thu Jun 29, 2023 1:17 am
Replies: 9
by hair bear » Mon Jun 12, 2023 10:28 pm

First post

Here's a question for you...
If a 12v negative earth system is using the dash board tell-tail bulb for the exciter line, what would happen if I...

Last post

How and where to fit?

You replace the stock flasher relay with one like this:

9 Replies

15972 Views

Last post by Slooby View the latest post
Thu Jun 29, 2023 1:17 am
JCB 3C Mk3 Powertrain drive problems

Last post by essexpete « Thu Apr 20, 2023 9:43 am
Replies: 9
by Valandis91 » Fri Mar 03, 2023 11:31 am

First post

Hi all!

First post here and already found heaps of useful information.

I'm on a remote greek island with a JCB 3C Mk3 with a powertrain...

Last post

Can you take the machine of the ground and prop with some heavy timber. Then try shuttling with the lever removed and also make sure the dump spool...

9 Replies

14879 Views

Last post by essexpete View the latest post
Thu Apr 20, 2023 9:43 am
hyd fitting sizes

Last post by Baloo « Sun Sep 11, 2022 2:21 pm

by Baloo » Sun Sep 11, 2022 2:21 pm

i want to make a couple of attachments for my sumitomo excavator both require hydraulic pressure, i was thinking i could just tee of the ram that...

0 Replies

77323 Views

Last post by Baloo View the latest post
Sun Sep 11, 2022 2:21 pm
JCB 812 broke again

Last post by Michalsmolen96 « Wed Sep 07, 2022 10:14 am
Replies: 7
by Baloo » Sat Apr 30, 2011 9:22 pm

First post

hello

l am in need of some help if possible please, l have lost control of my 812 :shock: , it starts and runs fine you can track about ok but non...

Last post

Hi Mark

I've an 812 here that needs rewired fully since all the wires have been eaten by something you wouldn't have all the wiring diagrams for it...

7 Replies

18359 Views

Last post by Michalsmolen96 View the latest post
Wed Sep 07, 2022 10:14 am
What product can one use for internal tank and gearbox coatings?

Last post by TrevorJ « Tue Jun 14, 2022 3:35 am
Replies: 3
by TrevorJ » Mon Jun 13, 2022 6:26 am

First post

So what does one use?

This question comes up as I've hit an interesting problem here in Australia. I used to be able to get a resin type product for...

Last post

Thanks ... I'd tripped over POR already looking about the web, kreen's sealer I had not, but both have pricing that ... reflects the "ready made...

3 Replies

11922 Views

Last post by TrevorJ View the latest post
Tue Jun 14, 2022 3:35 am
3DII Alternator

Last post by mambo « Tue May 24, 2022 5:39 pm
Replies: 7
by mambo » Sun May 22, 2022 4:24 pm

First post

Today my alternator siezed
Anyone know the part number please as there is no markings on it as far as i can see

I'm guessing its just a generic...

Last post

Thanks Pete thats the one. Iv'e got one ordered :)

7 Replies

11806 Views

Last post by mambo View the latest post
Tue May 24, 2022 5:39 pm
Vickers Rolls Royce engine service kit

Last post by essexpete « Sun Mar 20, 2022 11:54 pm
Replies: 4
by isettaman » Sat Mar 19, 2022 1:52 pm

First post

Hi All
I hope I've posted this in the correct discussion.
My friend, ex landscape contractor, has a cylinder head service kit for a Rolls Royce...

Last post

Dave, welcome to the site :wave: I know somebody with two of these machines, I can ask him if he would be interested in it? Next question how much...

4 Replies

10654 Views

Last post by essexpete View the latest post
Sun Mar 20, 2022 11:54 pm
orion hub removal

Last post by Jeremy Rowland « Sat Mar 19, 2022 8:13 pm
Replies: 10
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by AndrewinCornwall » Tue Mar 01, 2022 4:49 pm

First post

Hi all
I have just bought a Thwaites orion dumper.
previous owner advised brakes not working.
after raising it one wheel is not rotating.
after...

Last post

Andrew, glad you have got it apart at last :thumbup: most drum brake linings don't tend to wear evenly; the most important thing is that they are...
10 Replies

18954 Views

Last post by Jeremy Rowland View the latest post
Sat Mar 19, 2022 8:13 pm
smoky perkins

Last post by aidank « Tue Feb 22, 2022 11:33 am
Replies: 13
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by aidank » Wed Dec 22, 2021 12:41 pm

First post

I have a bit of a problem with a smoky Perkins 4.236t in a wheel loader.

The engine was completely rebuilt, 3 years ago, new block as old one was...

Last post

have been trying to figure out as much for my own info as anything else, what should the timing be

Start point: 24degree before top dead centre and...
13 Replies

19190 Views

Last post by aidank View the latest post
Tue Feb 22, 2022 11:33 am
Chainsaw fuel

Last post by hair bear « Thu Dec 23, 2021 10:17 am
Replies: 8
by hair bear » Sat Nov 27, 2021 11:33 pm

First post

I'm looking for thoughts regarding E10 for small engines.
So, with the current storm rattling around outside I thought it a good time to spin the...

Last post

Ok, so super unleaded it is then, for now anyway.
Had a look at the link, wow that's a lot of numbers! Interesting reading though.

8 Replies

12669 Views

Last post by hair bear View the latest post
Thu Dec 23, 2021 10:17 am
JCB 3CX 4x4 sitemaster 1987 wiring diagrams

Last post by mechman « Tue Nov 30, 2021 10:44 am
Replies: 12
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by Bargud » Wed Oct 30, 2019 7:07 am

First post

Good day,

I recently bought old JCB 3CX 4x4 sitemaster 1987 white cab for work on house construction.
Unfortunately lights are not working and I...

Last post

Hi all.
The JCB MkII I'm working on has no electrics working at all apart from the Ign switch, It starts and that's it. No dash lights, not charging...
12 Replies

42327 Views

Last post by mechman View the latest post
Tue Nov 30, 2021 10:44 am
Welding 101 Myth?

Last post by hair bear « Wed Sep 15, 2021 9:38 pm
Replies: 9
by hair bear » Fri Apr 22, 2016 9:44 pm

First post

Whenever welding on a vehicle or machine with batteries / electrical system I've always disconnected the battery as habit. More recently it's been...

Last post

Thanks, we'll have to wait and see if the machine is as good as the book.

9 Replies

16884 Views

Last post by hair bear View the latest post
Wed Sep 15, 2021 9:38 pm
Injection pump leakage

Last post by MrF « Mon Jul 26, 2021 4:45 pm
Replies: 1
by wiltronix » Mon Jul 26, 2021 2:46 pm

First post

Looking for service manual for FIAT 55L crawler tractor from the 1950's
Mine is in need of TLC and I have no service information for the old girl...

Last post

I dont know this pump or tractor, but if it helps this seems like a thoroughly well detailed picture resto of one with lots of technical data, but in...

1 Replies

10014 Views

Last post by MrF View the latest post
Mon Jul 26, 2021 4:45 pm

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