scotlad
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 posted on 7/8/08 at 08:43 PM |
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Zetec problems AAAAARGH
Hi folks
I'm having awful probs with my zetec having no oil pressure and i'm hopeful somebody can help..
Background- The engine is a 94ish 2.0 zetec silver top. It was bought from a gentleman on here as a complete engine/gearbox/management package and
looked clean as a whistle. After a year of sitting around in the car i finally got round to filling it with oil and cranking it over. The sump has
been modified and has had the suction pipe cut to the correct length.
So...... I removed the oil pressure sender and cranked it a wee bit hoping to get some oil appearing out the gallery. No joy so cranked a bit longer-
still nothing.
Hmmm after consulting the search feature on here, i decided priming the pump would be a good plan, so removed the filter (which was now empty of oil
again after having been filled before fitting)i injected a load of oil down into the pump through the filter housing aperture. Confident that would
fix it, i cranked the engine again expecting oil to burst forth.....but nothing.
Hmmmm further perusal of this fantastic forum led me to suspect the relief valve. Sadly contrary to some reports, the relief valve is inside the sump
on this particular variety of engine, so sump drained, off with the starter motor and i dropped the sump. The bottom end was spotless and the prv was
easily accesible with a 5mm allen key. i Then removed the bung and first the spring, then the valve bit fell out (i'm assuming this was in the
correct way round????) It was also clean as a whistle and in great condition.
By this time i was starting to really get wound up. Fitted the prv back in, refitted the sump and starter and refilled with oil. Primed from the
filter housing down into the pump once again, cranked it over and.........
Not a bloody sausage!! I went to bed in disgust!
This evening, i drained and dropped the sump again and removed the pickup pipe to check for blockages and length. All ok so removed the prv just to be
sure- all ok. I shone a torch up every orifice i could see on the oil pump, but nothing to see really. I poured oil in the filter housing and watched
it trickle out, first the relief v/v which i then refitted, then the oil pick up pipe, proving there was no complete occlusion in the line. Having now
almost lost the will to live, i decided to give it one last chance before waving the white flag and put it all back together.
Filled with oil yet again and cranked it over and..............................................................
Still no oil coming out the oil gallery.
Ok so all i can surmise is the oil pump is fecked. Is there any other method i've missed for checking this is the case before i go for strip
down? Theres a new oil pump on the bay of E for 70 odd squid. Should i bite the bullet and buy it? I'm wondering if the previous owner of the
engine has had the pump in bits and maybe rebuilt it wrong- anyone got a diagram of what way its supposed to be inside? Also is there anything hard
about changing the oil pump over?
Sorry about the long post but i'm really pig sick at the moment and needed a good rant.
Any help appreciated muchly :-)
I'm off now to wash the oil and crap off the floor out of my hair
Wonderous is our great blue ship that sails around the mighty sun, and joy to everyone that rides along!
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big_wasa
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| posted on 7/8/08 at 08:49 PM |
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I had this after a full rebuild of mine.
In the end I put a fresh pump on and got instant presure.
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scotlad
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| posted on 7/8/08 at 08:55 PM |
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Yeah it was a lot of your tips off previous posts that got me this far. Is it easy to change the oil pump?
Cheers
Graham
Wonderous is our great blue ship that sails around the mighty sun, and joy to everyone that rides along!
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Micael
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| posted on 7/8/08 at 08:58 PM |
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Remove the oil pump (you need to do this anyway if you planning to fit a new one) and take it apart and see if there are any failures.
The oil pump has two moving parts, so it is quite easy to see how it works.
To remove the pump you need to remove the crank pully, cam belt, sump. after that ist only four bolts to remove it. While at it change the rubber seal
on the crank aswell.
The crank pully can be a bit tough to loose. It is tourqed to 115 nm.
[Edited on 7/8/08 by Micael]
Micael Moose Åman
Petrolhead and all around nice guy
"Don't leave the duck there. It's totally irresponsible. Put it on the swing, it'll have much more fun." //Sleep Talkin Man Dec 23
2009
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big_wasa
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| posted on 7/8/08 at 09:03 PM |
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I still have the one I took out. I am buggered if I can see anything wrong with it.
Its a pita todo as you have to take the cambelt of aswell as the bottom pully. Do you have an impact wrench ?
Tip order a new oil seal for the pump before you want to do the job.
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the_fbi
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| posted on 7/8/08 at 09:35 PM |
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Double check the length of the pickup, if its too close to the sump then oil can't get picked up.
Ideally, if you have a 2nd pair of hands available, put some oil into a clear container, submerge pickup in said container's oil, turn engine
over (without spark plugs in so its easier) and see if oil is picked up after a few seconds.
Clearly stay well clear of the crank and ensure the container with the oil clears all moving parts too.
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Dusty
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| posted on 8/8/08 at 01:07 AM |
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Had this with mine. Eventually made a reservoir out of a small baked bean can and stuck it to the filter opening with bluetack. Filled it with oil and
wound the engine backwards to flood the pump, refilled the reservoir and repeated a couple of times. Worked a treat.
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scotlad
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| posted on 8/8/08 at 08:03 AM |
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Thanks folks. I getting a bit bored of trying to flood the pump now but i'll give it one last blast using the method above. Then its new oil
pump time. I'm glad to hear its not an impossible job to do. Do the gaskets have to come from Ford or will a factors stock em??
Cheers
Graham
Wonderous is our great blue ship that sails around the mighty sun, and joy to everyone that rides along!
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02GF74
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| posted on 8/8/08 at 09:05 AM |
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according to Haynes.
Refitting
11 The oil pump must be primed on installation, by pouring clean engine oil into it, and rotating the pump's inner rotor a few turns.
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rusty nuts
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| posted on 10/8/08 at 02:55 PM |
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The problem with priming with oil is if the engine is left too long before cranking over the oil can drain from the pump. Better to prime the pump
with petroleum jelly
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scotlad
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| posted on 11/8/08 at 08:58 AM |
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I've decided to just fit a new pump anyway as i'm unsure how many miles the present one has done or its condition. Hopefully getting the
new one to prime will not be such a disaster. will report here once its done :-)
Wonderous is our great blue ship that sails around the mighty sun, and joy to everyone that rides along!
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scotlad
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| posted on 13/8/08 at 08:50 PM |
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Yaaay!!!
Fitted the new oil pump and gaskets tonight. Cranked it over and 3 seconds later.......... oil pressure!!!!!!!!
Wooohoooo! Looks like the pump was fecked after all- shall dismantle when i get a moment.
Thanks for all suggestions, tips and general help goes to all those who replied to my original mental post.
Wonderous is our great blue ship that sails around the mighty sun, and joy to everyone that rides along!
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