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5. OPERATION
Numbers within the brackets refer to items in fig.1
Glow plug
construction
5.1.
NOTE: To minimise the possibility of damage to the engine, it is advisable to remove the cylinder head from the engine to work on it.
Alternatively, remove the relevant injector and connect an air line via an appropriate adaptor to the aperture to ensure dirt and swarf do
not enter the combustion chamber as the procedure is carried out. Wear eye protection.
5.2.
Push fit Star Socket (6) onto the top of the glow plug; it may need to be tapped on lightly. Then, using a ⅜" ratchet, remove/break off
the top part of the glow plug.
(See fig.2) Insert Centring Sleeve (4) into the recess in the top of the glow plug. Fit Pilot Drill (10) to an electric drill and insert pilot
drill into centering sleeve, drill a pilot hole in the centre of the glow plug remains. Ensure that pilot drilling is at least 15mm deep. Clean
away the swarf using an air line. Note: If the electrode can be withdrawn in one piece, the aperture created may be used as a pilot.
If this is the case, proceed to 5.4.
5.3.
Fit either 7mm (7) or 9mm (8) Drill Bit into the Drill Holding Adaptor (2) and lock in place with the grub screw, using the hex key (5).
Make sure that the grub screw bears on the flat, machined into the shank of the drill bit. Carefully drill out the centre of the glow plug
and threaded portion of glow plug body. Take care not to damage the female threads in the cylinder head.
Clean out the swarf using an air line.
5.4.
Fit the ¼" tap provided into the ratchet T-bar. Cut a thread with this in the remains of the glow plug body, cutting at least 15mm of
thread.
5.5.
Screw a Puller Adaptor Mandrel (3) into the thread that has just been cut into the glow plug. Remove the nut from the force screw in
the Puller Housing (1) and thread the force screw onto the mandrel. Slide the outer sleeve of the puller housing over the force screw.
5.6.
Re-fit the nut to the force screw with the collar facing the outer sleeve. Hold the head of the force screw with a 12mm wrench or socket
and wind the nut down using a 30mm wrench.This will draw the remaining lower part of the glow plug free from the cylinder head.
5.7.
Fit either M8 (12) or M10 (11) Tap into Ratchet T-Bar (9). Run the tap down to clean/restore the threads in the cylinder head. An
application of grease to the tap will both lubricate and help contain the swarf.
5.8.
Clean thoroughly the thread and surrounding area and make sure that the combustion chamber (if head is in-situ) is free from debris
before fitting a replacement glow plug.
5.9.
Ensure all tools are removed from the engine bay and returned to the tool tray, and store this in a safe, dry, childproof location.
ENVIRONMENT PROTECTION
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 any fluids (if applicable) into approved containers and
dispose of the product and 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. Please note that other versions of this product are available. If you require documentation for alternative versions, please email or call
our technical team on technical@sealey.co.uk or 01284 757505.
Important: No Liability is accepted for incorrect use of this product.
Warranty: Guarantee is 12 months from purchase date, proof of which is required for any claim.
Sealey Group, Kempson Way, Suffolk Business Park, Bury St Edmunds, Suffolk. IP32 7AR
01284 757500
© Jack Sealey Limited
Glow plug with electrode
withdrawn
sales@sealey.co.uk
Original Language Version
fig.2
REGISTER YOUR
PURCHASE HERE
www.sealey.co.uk
SX0408.V2 Issue: 2 (H,F) 27/07/23
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