Fuel injectors

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Patrick98
Posts: 32
Joined: Thu Aug 02, 2018 7:44 pm
Location: Bt344st

Fuel injectors

Post by Patrick98 » Wed Oct 10, 2018 8:19 pm

Has anyone ever got diesel injectors refurbished?? And if so what was the price?? Thanks

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bedwards1966
Posts: 830
Joined: Sun Mar 07, 2010 10:36 pm
Location: North Yorkshire

Re: Fuel injectors

Post by bedwards1966 » Sat Oct 13, 2018 10:09 pm

I send them to a local injection specialist who tests them for free. They only charge for adjustments and/or repairs if they're needed, and tell you the amount first.
I believe this is a fairly common approach.

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cobbadog
Posts: 358
Joined: Tue Oct 11, 2011 6:18 am
Location: beautiful Coopernook NSW. near Taree. NSW. Australia

Re: Fuel injectors

Post by cobbadog » Sun Oct 14, 2018 5:52 am

there is only one choice in our rural area that claims they recondition injectors and pumps. But they have a bad reputation for ripping customers off and are slowly going backwards. Only suggestion I can make is contact a couple of places and see what they say. If it is along the lines of what bedwards1966 syas tell them you will see them in the morning. That is how it should be!

blissakpo
Posts: 16
Joined: Tue Jul 17, 2018 7:15 pm
Location: IRAQ

Re: Fuel injectors

Post by blissakpo » Thu Oct 25, 2018 5:28 pm

SHEAF DIESEL SERVICES in Sheffield quoted me 40 quid per Injector.for a CAV BKB Injector on a DB 950 You need to give them the Injector DEF Number for a quote

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db2d
Posts: 1919
Joined: Fri Feb 24, 2012 10:01 pm
Location: Monmouthshire

Re: Fuel injectors

Post by db2d » Thu Oct 25, 2018 5:47 pm

New nozzles are available for around £20/25 but they have to be installed and set with special equipment.

blissakpo
Posts: 16
Joined: Tue Jul 17, 2018 7:15 pm
Location: IRAQ

Re: Fuel injectors

Post by blissakpo » Thu Oct 25, 2018 7:18 pm

I guess it depends on the state of them. I took the view it was better to have it done by someone who knows what they are doing and on return I can just plug and play.

One of mine came out easy - the second and third were a bit tight and the fourth was a complete sod that took me 3 days to extract and by the look of it had nor been working properly for some time - They are supposed to be "serviced" every 480 hours according to the "bible" but mine have not been done for at least 25 years that I have owned the tractor - I know they have been out at least once during it's 58 year life as one of the injector studs is a cut down bolt.

The more I look the more I find wrong bolts used as plugs and sheared bolts all over the place. I'm getting quite good at extracting sheared bolts - For what it's worth and if anyone is interested forget rubber east asian stud extractors off the "Bay of Fleas" and buy a "good" cobalt set of left hand drill bits as you drill into the stud to get it out most of them will spin out.

Also to get out stuck injectors I have found a two bits of M8 threaded bar will "just" engage in the threaded stud holes in the cylinder head enough to centre it (don't screw it in to far or you do have a problem) if you put a washer under it to spread the load then a nut the another nut and a washer under the injector flange you can wind it out gently with two spanners

Andy

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db2d
Posts: 1919
Joined: Fri Feb 24, 2012 10:01 pm
Location: Monmouthshire

Re: Fuel injectors

Post by db2d » Thu Oct 25, 2018 7:26 pm

Did the copper sealing washers come out with the injectors?

blissakpo
Posts: 16
Joined: Tue Jul 17, 2018 7:15 pm
Location: IRAQ

Re: Fuel injectors

Post by blissakpo » Thu Oct 25, 2018 7:59 pm

That's another story.......

One did the other three didn't

I saw a really useful gadget on the "Bay of Fleas" for pulling them and I thought "Thats the Badger"

There is a screw on the end that expands a collar once inserted and pulls them out easy....except it is C*ap

The screw on the end drops out and you have to take the cylinder head off to extract it

So now the pistons get a free carbon de coke which I had not bargained for

That's a lesson learned.......

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db2d
Posts: 1919
Joined: Fri Feb 24, 2012 10:01 pm
Location: Monmouthshire

Re: Fuel injectors

Post by db2d » Thu Oct 25, 2018 8:19 pm

I would recommend decarbonising the cylinder head and grinding the valves etc. A good quality head gasket should be fitted, some on the market are rubbish.

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GeoffDEAL
Posts: 340
Joined: Tue Jan 27, 2009 8:25 am
Location: New Zealand

Re: Fuel injectors

Post by GeoffDEAL » Thu Oct 25, 2018 9:24 pm

Hi a suitable size screw in stud extractor usually hooks into the copper injector washers and removes them i have found. cheers Geoff

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GeoffDEAL
Posts: 340
Joined: Tue Jan 27, 2009 8:25 am
Location: New Zealand

Re: Fuel injectors

Post by GeoffDEAL » Fri Oct 26, 2018 1:57 am

Hi again if its a later tractor be sure to replace the exhaust valves the original ones had a habit of the heads breaking off, had a 1200 and the 1494 do it replacement aftermarket valves dont seem to have the problem. The 1200 needed 2 pistons replacing and the 1494 stuck a valve head through the cylinder head + 2 new pistons,at the time found a replacement used 1200 head was exactly the same as the old 1494.

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ollek
Posts: 3566
Joined: Tue Apr 10, 2012 1:20 pm
Location: South West Finland

Re: Fuel injectors

Post by ollek » Fri Oct 26, 2018 5:51 am

The heads braking off the top of the exhaust valves was due to the caps between the valve stem and the rocker arm. A constant loosening of the valve cotters wears the valves. This is a old story and the manufacturer recommended to remove the caps and adjust the valve clearance to the same on both inlet and exhaust valves.

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GeoffDEAL
Posts: 340
Joined: Tue Jan 27, 2009 8:25 am
Location: New Zealand

Re: Fuel injectors

Post by GeoffDEAL » Fri Oct 26, 2018 9:27 pm

Hi there were never any caps on my tractors, was a valve quality issue and replacement valves of any make were and are fine with no problems.

Wheelie
Posts: 39
Joined: Mon Oct 30, 2017 8:42 pm
Location: Ireland

Re: Fuel injectors

Post by Wheelie » Wed Oct 31, 2018 10:41 pm

Best ever advice I got was take off the head and re-do all valves and injectors, a great job,but do a compression test first

Patrick98
Posts: 32
Joined: Thu Aug 02, 2018 7:44 pm
Location: Bt344st

Re: Fuel injectors

Post by Patrick98 » Wed Nov 07, 2018 10:08 pm

GeoffDEAL wrote:
Fri Oct 26, 2018 1:57 am
Hi again if its a later tractor be sure to replace the exhaust valves the original ones had a habit of the heads breaking off, had a 1200 and the 1494 do it replacement aftermarket valves dont seem to have the problem. The 1200 needed 2 pistons replacing and the 1494 stuck a valve head through the cylinder head + 2 new pistons,at the time found a replacement used 1200 head was exactly the same as the old 1494.
With both of the tractors needing new pistons. What was the symptoms that both had.. ie smoky, low power output, hard to start etc??

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