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by essexpete
Thu Apr 26, 2018 9:28 pm
Forum: Loaders/Backhoes
Topic: Perkins 4236 engine rebuild rocker shaft
Replies: 6
Views: 156

Re: Perkins 4236 engine rebuild rocker shaft

I think that is not completely unusual. I had a Sparex spring for the clutch pedal on my ford tractor. The spring was slight wrong in every aspect and guess what? The NH part was similar price. That is not to say that all non OM parts are crap because they are not but it helps to know if someone els...
by essexpete
Thu Apr 26, 2018 9:24 pm
Forum: Excavators
Topic: Thwaites Alldig
Replies: 10
Views: 255

Re: Thwaites Alldig

I am wondering if the hoses have inadvertently got mixed up as at least one looks new? The new hose I can see appears to go to both rams on the retract side.
by essexpete
Thu Apr 26, 2018 2:24 pm
Forum: Tech Talk
Topic: Perkins 6.354 fuel pump JCB 814
Replies: 7
Views: 118

Re: Perkins 6.354 fuel pump JCB 814

Thank you very much for your reply. It is not a huge amount leaking at the moment but you would not want to spend the night underneath the old girl anyway! I will keep an eye on it now I know what it is. Funnily enough it had not been run for a couple of months at least with the warmish weather yest...
by essexpete
Thu Apr 26, 2018 9:22 am
Forum: Tech Talk
Topic: Perkins 6.354 fuel pump JCB 814
Replies: 7
Views: 118

Re: Perkins 6.354 fuel pump JCB 814

Jeremy Rowland wrote:Pete what does this look like? I was wondering if it was one of the pumps valves? Are you sure the diesel is not running down to there from a higher place?

Jeremy


Good point I shall have to clean it up a bit. I found a photo on the web, not all pumps appear to be fitted with it.

Thanks
by essexpete
Thu Apr 26, 2018 12:15 am
Forum: Excavators
Topic: Thwaites Alldig
Replies: 10
Views: 255

Re: Thwaites Alldig

Thanks everyone...I disconnected the rams so I could see what was going on..the left ram powers out and back,the right ram does not move at all..I swopped the pipes over at the feed end and the the rams reversed and the one that did not move did!...lol complicated.So they are double acting rams I t...
by essexpete
Wed Apr 25, 2018 11:15 pm
Forum: Tech Talk
Topic: Perkins 6.354 fuel pump JCB 814
Replies: 7
Views: 118

Perkins 6.354 fuel pump JCB 814

Dear all

I noticed today a diesel leak from what looks like a round disc (diaphragm) on the front side of the vertical fuel pump. Not sure what this does (some kind of regulation?). Is it common to develop a leak there? I can't see exactly from where the leak is actually coming.

Thanks Peter
by essexpete
Wed Apr 25, 2018 9:03 pm
Forum: Loaders/Backhoes
Topic: Front loader?
Replies: 4
Views: 209

Re: Front loader?

Well it might not be so bad if you could find a triple spool from a breaker but I guess by the time you pipe it up and buy a half decent bucket it would be expensive. https://www.ebay.co.uk/itm/1968-JCB-3C-mk11-for-breaking-/112921787441 1970 Mk 2 looks similar in the cab with 2 levers to our first ...
by essexpete
Wed Apr 25, 2018 9:44 am
Forum: Excavators
Topic: Thwaites Alldig
Replies: 10
Views: 255

Re: Thwaites Alldig

You seem to have got the ram end disconnected. Do the rams operate in and out with no load? I can't really see but are the ram double acting with 2 feeds each?
by essexpete
Wed Apr 25, 2018 9:39 am
Forum: Loaders/Backhoes
Topic: Perkins 4236 engine rebuild rocker shaft
Replies: 6
Views: 156

Re: Perkins 4236 engine rebuild rocker shaft

Are talking about grinding the tappet surface?
by essexpete
Wed Apr 25, 2018 9:38 am
Forum: Loaders/Backhoes
Topic: Leyland engine with flat topped rocker cover
Replies: 5
Views: 130

Re: Leyland engine with flat topped rocker cover

If you do as Jeremy has said and the liners measure OK would it worth having the head skimmed? Also have you had any over heating problems? I ask because we had a problem with a powertrain and the radiator was blocked externally in the cores although I had thought I had cleaned it sufficiently. hard...

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