dipstick question
Discussion
I have always wondered what causes the dipstick to read ridiculously high. I mean 15 to 20 cm high, not just rising a bit like it does when it's warm or (horrors !) the head gasket / cylinder liners are busted. I mean, could it be pressure pushing oil up the tube where it sits, waiting for you to pull the stick out to measure it ? I check the oil level between once a week and once every six weeks. It virtually never varies (touch wood) but very occasionally it is way up like this. Any ideas ?
Where are crank case breather screens ? I have full workshop manual if there is a particular dialgram. Level was fine last month so probably not over filled. Is due oil change now, anything else I should check ? Could crankcase breather fix itself ? I ask as this has happened before.
toyroom said:
Where are crank case breather screens ? I have full workshop manual if there is a particular dialgram. Level was fine last month so probably not over filled. Is due oil change now, anything else I should check ? Could crankcase breather fix itself ? I ask as this has happened before.
Its the green thin in the middle of this pic
the green plastic thing at the top of the bellhousing on the engine.
here are the screens
toyroom said:
Dammit, I've got four cylinders at that location !! Still sounds like the best explanation. Thanks for trying with the picture ( I empathise with anyone getting pictures on the forum (see my thread: "Please don't respond" ) Anyone know where the crankcase breather is on the V8 ?
Well, since you haven't filled out your profile, and didn't mention what car you have, I had no idea what Esprit you have.
maybe you should include that info if you want help.
Here is the location of the crankcase ventilation system on the V8.
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Sorry, couldn't help that! I will go and do it right away. Seriously, your help with the diagrams is greatly appreciated. I will go and check it now (after submitting the details)
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Sorry, couldn't help that! I will go and do it right away. Seriously, your help with the diagrams is greatly appreciated. I will go and check it now (after submitting the details)
The second diagram is schematic. Where do the hoses actually originate and terminate. It is a bit confusing because the parts manual shows the front cover having a pressure relief valve built into it. This is located at the front of the engine (of course) with no evidence of ducts or hoses. How and where would I go about checking the patency of the duct/hose/pipe. It has been suggested that the piston in the PRV could get jammed and would require stripping down to fix it.
toyroom said:
The second diagram is schematic. Where do the hoses actually originate and terminate. It is a bit confusing because the parts manual shows the front cover having a pressure relief valve built into it. This is located at the front of the engine (of course) with no evidence of ducts or hoses. How and where would I go about checking the patency of the duct/hose/pipe. It has been suggested that the piston in the PRV could get jammed and would require stripping down to fix it.
Here's what the manual says (i'm not very familiar with the V8 engine)
________________________________________________________________
EMM.2 - W CRANKCASE BREATHER SYSTEM
Crankcase fumes are managed as follows:
Each cam cover is lined with a steel oil spray shield, the space above which is connected via a duct and
hose to the crankcase breather cover in the centre of the ‘v’.
This breather space is ventilated by a hose connecting a spigot on the front face of each cam cover to the
adjacent ‘clean side’ air filter cover.
A small bore hose connects a spigot on the rear face of the RH cam cover, via a one way control valve,
to the intake plenum common chamber. Under light load running conditions, the small bore hose maintains a small negative pressure in the
crankcase. Underboost conditions, intake plenum pressure becomes positive and the one way valve seals off
this hose. Airflow through the intake ducting is then sufficient to induce a negative pressure in the hoses
connected to the front of the cam covers.
________________________________________________________________________
Oh, and I see that you have a V8 now
>> Edited by lotusse89 on Saturday 20th May 17:45
So if I can find the small bore hose on the rear of the right side cam cover and give it a suck and get no resistance, this should show there is no blockage ? Must admit, you totally lost me with the bit between the front of the cam covers and the small bore hose at the back of the right cam cover. Does it mean that the two cam covers are connected to the air filter housings because that doesn't make sense. I must be mis reading it. Upon checking the dipstick at various levels (ie, not pushing it all the way in) I find that the actual oil level is only 5mm above maximum. As I have lost no coolant, got no scum in the oil and seen no tadpoles in the water; not noticed any smell in the coolant and the engine was rebuilt at the factory with the new sealant four years (20,000 miles) ago, I think that the most likely solution is that the dealer has slightly overfilled the engine at the last service. I will be changing the oil tomorrow and will fill it to the lower mark and see what happens thru the week. If there is no change then I've got the answer. Thanks again for your detailed assistance.
...And where has the right hand driveshaft gone to ??!! Or is this a test to see if the deliberate mistakes are noticed ? Come to think of it, that would make quite a good DVD ROM game wouldn't it.... Spot the bit that's missing...or spot the anachronism (my car has '98 wheels and a MOMO wheel whilst (as you now see from my profle !) the car is a '97
Is anyone from LEW monitoring this thread ? Let me know if you think that this would be a marketable idea and if you want any help with it. I will post a separate thread detailing this idea !
Is anyone from LEW monitoring this thread ? Let me know if you think that this would be a marketable idea and if you want any help with it. I will post a separate thread detailing this idea !
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