WD40 the great con.

machineman

I have been struggling for 3 days to pull an injector from an engine . Its just welded there.If I hear once more "give it a good soak with WD40 " , I wont be responsible for my actions . At this stage I actively hate WD40 . Its a water displacement spray and as far as I can see its no use for anything else . The 1000 and 1 uses it supposedly has are a work of modern day marketing cobblers . If anything needs oiling I will use oil .I have progressed from WD40 to a mix of atf and nail varnish remover . No joy . The latest is spray oven cleaner . am not hopeful . Rant over .

aaakev

I remember all the trouble with the injectors on the renault traffic and renault couldnt get em out for love nor money. KLANN made a special tool for the job and it sold like hot cakes

101sean

There's far better penetrating oils than WD40 but none are going to work on a carboned up injector.

Thread started by Nissan Doctor over on motors showing the lengths you may have to go to http://www.boards.ie/vbulletin/showthread.php?t=2056800743

marlyman

Try kerosene or dettol.

doctorchopper

Plus gas is amazing penetrating oil.
http://www.handyhardware.ie/cat/Lubricants/Plusgas/312/364

TPM

WD40 is a general diy spray it has a lot of applications but there are better dedicated products.
the best penetrating oil I used was made by Chesterton it was 723 or 706 or something like that, it was great stuff, I am sure that there are plenty of other dedicated penetrating oils that are good too. saying that a can of wd40 is handy stuff to have around for general/light work

machineman

Thanks for replies , I will give the plus gas a go, am just exhausted with it . The first 3 injectors popped out no prob at all . Am desperate to get back on the road asap . Someone told me to visualise it coming out . This is a testing time .

aaakev

Whats it in?

doctorchopper

Have you tried heating the head up with a heat gun, a torch would be good too if you could do it without damaging any wiring or other items.i know when we take thermocouples out of a turbine engine we take a punch and hit the top of the probe attachment nut it shocks them and loosens them.

machineman

Its a ssyangyong Kyron, it has a mercedes derived engine .Injector 4 is close enough to the bulk head and its hard to get at . Have just rigged up a type of pullers on it but its hard to work level .Thanks again .

doctorchopper

Looks like they can be difficult enough to get out.you may need to get a proper puller
http://m.youtube.com/watch?v=dfszollwKYg

Deadly Dave

Can you drive it to heat the head up and then use plumbers freezer spray on the injector. The injector might contract enough to turn.

Pottler

machineman wrote: »

Its a ssyangyong Kyron, it has a mercedes derived engine .Injector 4 is close enough to the bulk head and its hard to get at . Have just rigged up a type of pullers on it but its hard to work level .Thanks again .

Use a sledgehammer to drive it in as far as it will go. Will save you a lot of grief in the long run.:D(Might not remove the injector but it will make you feel a lot better)

ubs69

heard this is good ,some 2 stroke mix, oil and petrol ,it seeps in and petrol evaporates leaving the oil around threads ,just my 2 cents