Oil Fill Cap Mod With 90 Degree Fitting
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Oil Fill Cap Mod With 90 Degree Fitting
See attached photo (sorry for bad image).
Reaching out to see if anyone knows how to modify stock oil fill cap to add 90 degree fitting. I tried but cap fell apart. Please help. Thanks!
Mine after drilling out.
Reaching out to see if anyone knows how to modify stock oil fill cap to add 90 degree fitting. I tried but cap fell apart. Please help. Thanks!
Mine after drilling out.
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Re: Oil Fill Cap Mod With 90 Degree Fitting
I wouldn't feel comfortable doing that, the metal on the cap is way too thin. I would rather drill a hole through the valve cover and weld a fitting in facing the direction I need it to. If I had to use the cap though, I would drill a hole through the cap the exact size as the fitting, no wiggle room, mark the direction of the fitting on the cap after the cap is secured, then pull the cap back out and flip it upside down. Hold the fitting in place from underneath with a vice grip facing the correct direction using the mark you made, then pour in a "pool" of JB Weld in that little reservoir area so that the walls of the fitting are completely covered, then allow it to cure. That is the only way I would do it if I had to use the cap...
Post a better picture of that engine bay will ya...
Edit: If the fitting is threaded on the bottom, which it more than likely is, then don't worry about the vice grip holding it into place, just get a nut and washer to lock down and secure the fitting the way you need it. I would still use the JB Weld though to engulf the nut and washer, just for the added security. It won't budge after all that...
Post a better picture of that engine bay will ya...
Edit: If the fitting is threaded on the bottom, which it more than likely is, then don't worry about the vice grip holding it into place, just get a nut and washer to lock down and secure the fitting the way you need it. I would still use the JB Weld though to engulf the nut and washer, just for the added security. It won't budge after all that...
Last edited by Street Lethal; 09-14-2016 at 02:50 PM.
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Re: Oil Fill Cap Mod With 90 Degree Fitting
Thanks for the input.
I was considering all your options. What would you do? The fitting -8 AN 3/8 Pipe Size fitting is in fact threaded.
I was considering all your options. What would you do? The fitting -8 AN 3/8 Pipe Size fitting is in fact threaded.
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Re: Oil Fill Cap Mod With 90 Degree Fitting
Probably held together with a nut on the fitting on the inside of the cap. I second streetlethal's Idea - I always liked the idea of oil returns going to the fuel pump blockoff plate (If yours isnt a fake one)
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Re: Oil Fill Cap Mod With 90 Degree Fitting
Sorry for the dumb question.
Can you elaborate on "idea on oil returns going to the fuel block off plate"?
Can you elaborate on "idea on oil returns going to the fuel block off plate"?
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Re: Oil Fill Cap Mod With 90 Degree Fitting
The mechanical fuel pump mount on the passengers front of the engine. Some engines had a plate there that blocked off the hole because there was a pushrod hole coming from the camshaft, and some models didnt need a mechanical fuel pump, so there was plate there to cover it. Alot of people put a fitting in there for the return
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Re: Oil Fill Cap Mod With 90 Degree Fitting
Do you have picture of fitting for return installed?
The mechanical fuel pump mount on the passengers front of the engine. Some engines had a plate there that blocked off the hole because there was a pushrod hole coming from the camshaft, and some models didnt need a mechanical fuel pump, so there was plate there to cover it. Alot of people put a fitting in there for the return
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Re: Oil Fill Cap Mod With 90 Degree Fitting
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Re: Oil Fill Cap Mod With 90 Degree Fitting
Will this work on a 305 TPI? If so where do I install?
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Re: Oil Fill Cap Mod With 90 Degree Fitting
Where can I purchase ORIGINAL oil filler cap (plastic face)? Please advise.
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Re: Oil Fill Cap Mod With 90 Degree Fitting
Experiencing minor Blowby from oil filler cap area. The pic of the modified cap was on another board members car. It was a suggestion to plumb fitting and run hose to catch can and intake of SC.
Beside engine tear down what do you recommend doing?
Beside engine tear down what do you recommend doing?
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Re: Oil Fill Cap Mod With 90 Degree Fitting
You need a check valve in the drivers side pcv valve, otherwise your gonna pressureize the crankcase, thats why your getting oil in the blower inlet.
Im running a open air element on my drivers side valve cover, pcv on the passengers, a check valve then it goes to the throttle body port.
Im running a open air element on my drivers side valve cover, pcv on the passengers, a check valve then it goes to the throttle body port.
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Re: Oil Fill Cap Mod With 90 Degree Fitting
You need a check valve in the drivers side pcv valve, otherwise your gonna pressureize the crankcase, thats why your getting oil in the blower inlet.
Im running a open air element on my drivers side valve cover, pcv on the passengers, a check valve then it goes to the throttle body port.
Im running a open air element on my drivers side valve cover, pcv on the passengers, a check valve then it goes to the throttle body port.
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Re: Oil Fill Cap Mod With 90 Degree Fitting
I dont have any good pictures at the moment, But the check valve is off a a 2001 volvo v70. Its black/white and works good. I also use the bigger of the two throttle body ports on the passengers side (I belive its for the EVAP system) but i dont have a EVAP system.
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Re: Oil Fill Cap Mod With 90 Degree Fitting
Looks like this
http://www.nextdayauto.com/2001-volv...3-1639748.html
http://www.nextdayauto.com/2001-volv...3-1639748.html
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Re: Oil Fill Cap Mod With 90 Degree Fitting
I'm a visual guy. Instead of pics can you provide sketch of how your lines are run for both valve covers including check valve, pcv, open air element etc...
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Re: Oil Fill Cap Mod With 90 Degree Fitting
When your done, If you take the line off the throttle, you should NOT be able to blow through it, But you should be able to suck air freely through it. If you cant, you have the check valve backwards
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Re: Oil Fill Cap Mod With 90 Degree Fitting
Sorry so many questions been out of the scene for 10+ years. When I get home will verify setup. Again THANKS! If you get a chance please snap a few pics and post up.
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Re: Oil Fill Cap Mod With 90 Degree Fitting
Pics of my setup
Passenger side valve cover plastic fitting hose ran to intake tube of supercharger.
Intake tube of supercharger
Driver side valve cover pcv to base manifold
Let me know what's wrong and how it should be routed please.
Passenger side valve cover plastic fitting hose ran to intake tube of supercharger.
Intake tube of supercharger
Driver side valve cover pcv to base manifold
Let me know what's wrong and how it should be routed please.
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Re: Oil Fill Cap Mod With 90 Degree Fitting
Force Induction guys please chime in on EVAC setup.
#25
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Re: Oil Fill Cap Mod With 90 Degree Fitting
That pcv needs a check valve on it. Don't wanna pressurise the crank case.
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Re: Oil Fill Cap Mod With 90 Degree Fitting
Originally Posted by IrocZonNos
Passenger side valve cover plastic fitting hose ran to intake tube of supercharger.
Originally Posted by IrocZonNos
Driver side valve cover pcv to base manifold.
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Re: Oil Fill Cap Mod With 90 Degree Fitting
Thanks Street Lethal!
What check valve are you running?
Can you post pics of your setup?
What check valve are you running?
Can you post pics of your setup?
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Re: Oil Fill Cap Mod With 90 Degree Fitting
Originally Posted by IrocZonNos
Thanks Street Lethal!
What check valve are you running?
Can you post pics of your setup?
What check valve are you running?
Can you post pics of your setup?
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Re: Oil Fill Cap Mod With 90 Degree Fitting
Any recommendations on best CHECK VALVE to run on Forced Induction (Paxton Supercharged) car?
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Re: Oil Fill Cap Mod With 90 Degree Fitting
I wouldn't run it over there, that is tremendous suction on a constant basis. I have mine going to the throttle body where it is supposed to, I just placed a check valve on it. Or, if you're worried about crankcase pressure during boost, just run an open/vented breather like most others. How often does your catch can fill up with that setup, all of the time...?
I agree with the post right above me, as although the PCV is a check valve itself, put another one on there because the factory stuff was never intended for a pressurized system. Make sure you're running one on the brake booster vacuum line as well...
I agree with the post right above me, as although the PCV is a check valve itself, put another one on there because the factory stuff was never intended for a pressurized system. Make sure you're running one on the brake booster vacuum line as well...
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Re: Oil Fill Cap Mod With 90 Degree Fitting
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Re: Oil Fill Cap Mod With 90 Degree Fitting
Check Valve 12mm 1 2" Aluminium One Way Non Return Fuel Diesel Water Marine | eBay
they have other sizes as well, stock rubber hose is 3/8"
they have other sizes as well, stock rubber hose is 3/8"
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