New to Merkurs - Where is this oil coming from?
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New to Merkurs - Where is this oil coming from?
I just bought my first XR. It's an 85 slick top that I picked up in Vegas.
I had to replace the BMC before I could actually give it a good test drive. And once I did, I noticed a couple of things. After it got up to temp, when it hit boost it would pull until the boost gauge was in the red and then it would stop pulling. It felt like the boost got weaker as the car came up to temp.
I was just driving it around town, running back and forth to my garage. That is to say, I wasn't really beating on it as I'm just trying to get a baseline and figure out what needs doing, and in what order it needs to be done.
So after about 40 min of driving around I popped the hood and found a massive amount of oil on the drivers side. The BMC is covered, the shock tower, on the hood and the back of the firewall in that area.
As I said in the title, I'm new to Merkurs. I honestly don't know where that oil could be coming from.
Pictures below.
I had to replace the BMC before I could actually give it a good test drive. And once I did, I noticed a couple of things. After it got up to temp, when it hit boost it would pull until the boost gauge was in the red and then it would stop pulling. It felt like the boost got weaker as the car came up to temp.
I was just driving it around town, running back and forth to my garage. That is to say, I wasn't really beating on it as I'm just trying to get a baseline and figure out what needs doing, and in what order it needs to be done.
So after about 40 min of driving around I popped the hood and found a massive amount of oil on the drivers side. The BMC is covered, the shock tower, on the hood and the back of the firewall in that area.
As I said in the title, I'm new to Merkurs. I honestly don't know where that oil could be coming from.
Pictures below.
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Re: New to Merkurs - Where is this oil coming from?
Possibly being blown up and out of the oil fill tube under boost because of a faulty PCV.
YMMV
YMMV
Descartes: "Cogito Ergo Sum"
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Re: New to Merkurs - Where is this oil coming from?
Is that common? The dipstick and the oil filter are the only two oil related things I can see in that area.
I've already ordered the PCV valve, hopefully it'll get here soon!
Any other possible culprits?
I've already ordered the PCV valve, hopefully it'll get here soon!
Any other possible culprits?
Re: New to Merkurs - Where is this oil coming from?
Its a good chance that you have a bad oil pressure sender, a common thing to fail. Its at the rear of the engine on the drivers side. Also where did you order the PCV valve from, Motorcraft are best.
Jim Gosses
86 XR4TI, 165K, T-5, IC, RR, PBR Fronts, T-bird Rear Discs
86 XR4TI, 165K, T-5, IC, RR, PBR Fronts, T-bird Rear Discs
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Re: New to Merkurs - Where is this oil coming from?
I ordered the motorcraft one from Rockauto.
How would I even check the sending unit?
How would I even check the sending unit?
- DPDISXR4Ti
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Re: New to Merkurs - Where is this oil coming from?
Are you sure it's the CORRECT Motorcraft one? What is the part#?
If it's wet with oil it's a good chance it's leaking. I would be blipping the throttle and see if you see any oil leaking. With as much as you've got leaking it should be easy to track down.
Brad
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Re: New to Merkurs - Where is this oil coming from?
EV127A is Motorcraft PCV PN.
YMMV
YMMV
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- merkurdriver
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Re: New to Merkurs - Where is this oil coming from?
( x 100 on both suggestions.)
The correct plastic Motorcraft PCV should be the only PCV that ever goes on the car. With any luck that will fix the problem... to me the pictures look like oil is coming out of the dipstick tube when under boost.
The gauge sending unit on the head would be the next place to look, but that usually is really easy to spot as it will (typically) drip to the ground like a faucet just sitting at idle.
Best news is that the PCV and the gauge sending unit are really inexpensive ( $10 ea.), easy to source, and easy to replace.
The correct plastic Motorcraft PCV should be the only PCV that ever goes on the car. With any luck that will fix the problem... to me the pictures look like oil is coming out of the dipstick tube when under boost.
The gauge sending unit on the head would be the next place to look, but that usually is really easy to spot as it will (typically) drip to the ground like a faucet just sitting at idle.
Best news is that the PCV and the gauge sending unit are really inexpensive ( $10 ea.), easy to source, and easy to replace.
Re: New to Merkurs - Where is this oil coming from?
Yes, as mentioned, check the oil pressure sender, or even the line may be cracked and leaking.
The PCV valve may have been blown out of the tubing, so the one end of the line is hanging open out there spewing.
Make sure also, EV127A is what you get, critical.
Oh, I also had an issue where my dipstick tube broke off the mount, so the two little holes where is was spot welded on the tube were open. You can replace the tube or put a rubber hose over the holes, tightly.
The PCV valve may have been blown out of the tubing, so the one end of the line is hanging open out there spewing.
Make sure also, EV127A is what you get, critical.
Oh, I also had an issue where my dipstick tube broke off the mount, so the two little holes where is was spot welded on the tube were open. You can replace the tube or put a rubber hose over the holes, tightly.
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Re: New to Merkurs - Where is this oil coming from?
This happened to me as well. Drove me crazy 'til I figured it out. A piece of hose over the pinholes sealed it up nicely; no issues since, several years ago.
This is my car, and these are my people!
2015 Fiesta ST
2020 Edge 2.0 Ecoboost
2015 Fiesta ST
2020 Edge 2.0 Ecoboost
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Re: New to Merkurs - Where is this oil coming from?
I've confirmed that it is indeed to correct EV127A PCV valve.
I've checked to make sure the dipstick tube is still attached and not giving me that famous "Snakebite" leak
I haven't had a moment to check the Oil Pressure sender but I will probably order a new one just to be safe.
I'll report back once I get the PCV valve in and installed.
Thank you all for your help!
I've checked to make sure the dipstick tube is still attached and not giving me that famous "Snakebite" leak
I haven't had a moment to check the Oil Pressure sender but I will probably order a new one just to be safe.
I'll report back once I get the PCV valve in and installed.
Thank you all for your help!
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Re: New to Merkurs - Where is this oil coming from?
Also, sprayed the crud out of the oil separator with carb cleaner until everything came out clear and tasted great.
As this is an 85 car, is there anything that should go into the valve cover where the oil separator goes? It feels like it's metal on metal.
As this is an 85 car, is there anything that should go into the valve cover where the oil separator goes? It feels like it's metal on metal.
Re: New to Merkurs - Where is this oil coming from?
Nope. The early ones are metal on metal. They sometimes leak out the top of the dipstick. A rubber boot from a spark plug wire can cure that.oemoilleaks wrote: ↑Tue Nov 27, 2018 11:38 pm Also, sprayed the crud out of the oil separator with carb cleaner until everything came out clear and tasted great.
As this is an 85 car, is there anything that should go into the valve cover where the oil separator goes? It feels like it's metal on metal.
David Reese
88 XR4Ti - mono white T5, someday to be bi wing
89 Scorpio - waiting on some parts before it hits the road again
88 XR4Ti - mono red C3, parts car
used to own 86 dark blue traded in on a min van, what was I thinking?
88 XR4Ti - mono white T5, someday to be bi wing
89 Scorpio - waiting on some parts before it hits the road again
88 XR4Ti - mono red C3, parts car
used to own 86 dark blue traded in on a min van, what was I thinking?
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Re: New to Merkurs - Where is this oil coming from?
Ah is that why everyone switches to the later valve cover?
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Re: New to Merkurs - Where is this oil coming from?
Everyone doesn't, but it is an improved design. In addition to the improved breather, you get a screw-on oil cap as well. Many prefer the looks of the earlier style.oemoilleaks wrote: ↑Thu Nov 29, 2018 11:52 am Ah is that why everyone switches to the later valve cover?
This is my car, and these are my people!
2015 Fiesta ST
2020 Edge 2.0 Ecoboost
2015 Fiesta ST
2020 Edge 2.0 Ecoboost