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4. TESTING PROCEDURE
WARNING! Before using equipment ensure you have read, understood and apply Section 1 Safety Instructions.
IMPORTANT: The information in this manual is not a substitute for the procedures outlined in the vehicle service manual.
ALWAYS follow the manufacturer's instructions and safety precautions when working on fuel systems.
This tester is designed to be bench mounted. Before using it, select an appropriate location on a bench or similar and affix the
tester to it, using appropriately sized fixings. Ensure that the tester is securely fastened before proceeding with testing.
4.1.
Pre-Test checks.
4.1.1.
Carry out a thorough visual and hands-on inspection of the engine and fuel system. Look for loose or cracked electrical wiring,
battery cables, ignition wires, and fuel or vacuum lines.
4.1.2.
Perform diagnostic procedures as described in the vehicle's service manual to eliminate other possible causes of problems.
4.1.3.
Depressurise the vehicle's fuel system by following the procedure outlined in the vehicle's service manual. On most vehicles, this
involves disconnecting or deactivating the electric fuel pump(s) and operating the engine until it stalls.
Note: Some vehicles may have more than one fuel pump - deactivate all fuel pumps. Failure to do so can result in personal injury,
vehicle damage, spilt fuel, fire or other hazardous conditions.
4.1.4.
Remove the fuel injectors to be tested, following the procedure in the vehicle's service manual.
4.2.
Testing Injectors.
4.2.1.
Fill the tester's reservoir with an approprate calibration fluid which complies with ISO 4113 (such as Shell S.9365), and replace lid.
4.2.2.
Connect tester to fuel injector, using one of the supplied connection pipes. Make sure all connections are securely fastened.
4.2.3.
As fuel will be sprayed from the injector, have some form of recepticle to place over/near the injector to capture the spray - also
ensure that you do not place yourself or anyone else in line with the injector's nozzle.
4.2.4.
Commence pumping the lever on the tester, this will begin to build up the pressure to the injector. Once some pressure has built
up, wait a short time to see if the pressure starts to drop. If it does there may be a leak between the pipe and injector and/or tester,
tighten these up if necessary. If these are OK, the injector nozzle may be leaking. Check to see if this is OK.
4.2.5.
Continue to pump the lever and use the gauge to observe the pressure at which the injector nozzle opens and compare this to the
manufacturer's specification. When the nozzle opens, observe for correct spray pattern/atomisation and compare this to the
manufacturer's expected spray pattern.
4.2.6.
If necessary, disconnect and carry out any remedial work to the injector before re-connecting it and repeating the test.
NOTE: When disconnecting the injector, care needs to be taken to de-pressurise if there is pressure still present in the tester.
4.2.7.
When finished testing, reconnect all injectors and parts to the vehicle.
4.2.8.
Keep tester clean by wiping over with a dampened cloth.
4.2.9.
Change fluid filter within the reservoir if it is suspected to have become clogged.
4.3.
Testing Other Equipment.
4.3.1.
This tester can also be used for pressure testing other equipment such as pipes, tanks, pump castings etc. where high pressure is
required. Always follow the equipment manufacturer's safety instructions as well as the safety instructions contained within this
manual before testing.
Parts support is available for this product. To obtain a parts listing and/or diagram,
please log on to www.sealey.co.uk, email sales@sealey.co.uk or phone 01284 757500.
Recycle unwanted materials instead of disposing of them as waste. All tools, accessories and packaging should be
sorted, taken to a recycling centre and disposed of in a manner which is compatible with the environment.
When the product becomes completely unserviceable and requires disposal, drain off any fluids (if applicable) into
approved containers and dispose of the product and the fluids according to local regulations.
NOTE: It is our policy to continually improve products and as such we reserve the right to alter data, specifications and component parts without prior notice.
IMPORTANT: No liability is accepted for incorrect use of this product.
WARRANTY: Guarantee is 12 months from purchase date, proof of which will be required for any claim.
INFORMATION: For a copy of our latest catalogue and promotions call us on 01284 757525 and leave your full name and address, including postcode.
© Jack Sealey Limited
Environmental Protection
Sole UK Distributor, Sealey Group,
Kempson Way, Suffolk Business
Park, Bury St. Edmunds, Suffolk,
IP32 7AR
Original Language Version
www.sealey.co.uk
01284 757500
sales@sealey.co.uk
01284 703534
VS2058.V2
Issue: 1 - 03/09/14
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