MotorGuard Bypass Help - Banjo Bolts

[canadiantim]

Hi,

I'm a newbie here. Great site. Been reading for weeks...

I am going to pick up a couple of Ralph's MotorGuard filters and I have a few questions regarding some install bits and pieces:

1) I like the Frantz filter adapters with the single output line for my bypass source since they have no relief springs, balls, etc and I don't have to mess with "t"'s on the pressure senders buried in wierd locations.

What size restrictor in the Motorguard would I need with this supply source, if any?

Is there any failure point in these Frantz adapters - ie: can they come loose, how long will the seal between the block and adapter last before refreshing?


2) I am looking for banjo or hollow bolts to allow me to return to my oil drain plugs in two cars. I've gone numb after hours of looking on the web. The two drain plug sizes are:

12mm - 1.25
12mm - 1.75

Does anyone know where I could find such fittings?

Any help would be appreciated!

Thanks!

 

[Steve S]

With the oil filter mount adapter you do not need a banjo bolt the bypass filter'ed'oil returns into the adapter.

 

[canadiantim]

The Frantz adapter only has a a single output line (I don't want a sandwich adapter with springs, balls, etc), no return so I'm looking for a fitting to allow me to return to the pan drain hole.

Thanks

 

[johnd]

I drilled and tapped the drain plug in my car for 1/8" NPT and returned the oil line there. I never could find a banjo bolt which was what I actually wanted. In some applications going into the drain plug might not be a good idea due to the possibility of it getting sheared off by a road hazard.

 

[mjo]

Apply sensor-safe silicon RTV deeply into all male pipe threads. It'll be leak free. Also avoid stiff metal line (i.e. brake line) it tends to put more stress on the pipe fittings & shake them loose.

 

[Gary Allan]

PM msparks. He knows someone with a line on banjo fittings

 

[LateArrivalforLSU]

I would suggest the hollow bolt. I did the hollow bolt install a few months back and I wished I had done it from the get-go. Go to http://www.wefilterit.com and you can buy a hollow bolt there. Best of luck....

 

[RalphPWood]

Why not just use a two port sandwich adapter and be done with the hollow bolts and banjo bolts. At one time Frantz sold a two port sandwich adapter. One of my customers sent me a Frantz single port sandwich adapter. They are very rugged and simple. They will last a lifetime. The gasket will last many years. The filters work better with the two port sandwich adapters than they do hooked up in the cnventional way because there is less stress on the element. The oil soaks thru the TP instead of being forced thru. The slower the flow thru the filter the better the cleaning. Unless you are an old Frantz of Motor Guard user uou wouldn't be expected to know that. If you udersand that any filter that cleans oil is restrictive and the oil will follow the path of least resistance you will know what you have to do to make them work.
If you use an adapter with no relief valve with an engine that has the relief valve in the filter mount like many GM engines most of the oil will go thru the stock relief valve. The only oil the full flow filter will get is what goes thru the bypass filter. You have converted to a straight bypass system. this wouldn't worry me. The full flow filter is pretty much useless in a good engine unless you are generating a lot of large metal particles such as in racing. For example, a 53 Chevy has a straight bypass system. I converted the GM Iron Duke engine to a straight bypass system by installing a Perma-Cool 195 universal spin on adapter. I removed the restrictor from the TP filter. I had to drill a bypass passage in the 195 adapter to make it work on the Camry because there is no relief valve in the engine. Like most engines the relief valve is in the filter. To convert a Perma-Cool sandwich adapter to a one port drill a few holes in it and plug one port.
The normal size restrictor orifice for TP filters hooked up with the single port sandwich adapters is 1/16". Most people remove the orifice when using a two port sandwich adapter. With the Frantz two port and one port you can use a full flow filter gasket if it is the conventional type instead of the odd shaped ones.
I think I remember someone telling me they used a Fram drain valve instead of the banjo bolt. I haven't checked it out. Don't like returning the oil that way.

Ralph

 

[johnd]

I'm the guy that used the Fram drain valve. I never was comfortable with it, the line ran right by the left side catalytic converter. I had a guy tap a replacement drain plug for 1/8" NPT and used a 1/4" flange to 1/8" npt adaptor with 1/4" copper line. I still don't think it is optimum to return oil at the bottom but this is pretty secure and requires absolutely no modification the engine itself, assuming anybody cares. I would have used a self tapping bolt into the pan but the way Chevrolet shoe-horned the LT1 engine into the space available, there really isn't any access to the pan from about 1" from the bottom up.

 

[mjo]

In order to get the hole drilled into the side of my oil pan while on the car I had to use one of those 90 degree "drill couplers" (my terminology). I attached the electric drill to one of these and inserted a drill bit into the "drill coupler."

Before I made the hole, I used a center punch to make a mark about 3" above the bottom of the pan. I then added some grease to the drill bit and then drilled into the pan at a moderate speed, making sure the bit was perpendicular to the pan.

 

[canadiantim]

Thanks for the suggestions.

I can't use hollow bolts due to the pan on one car being alloy and totally inaccessible on the other car.

The two port adapter would indeed be the neatest but I'm just not comfortable supplying the main oil feed through the relief valve on an inexpensive aftermarket item, especially on a -45 morning with thick oil.

I've got some leads on fittings that will allow me to return to the oil pan drain. Oil Guard has them but won't return my emails. If I have any success, I'll post what I find.

Tim

 

[chenobylite]

quote:

---

Originally posted by canadiantim:
I am looking for banjo or hollow bolts to allow me to return to my oil drain plugs in two cars. I've gone numb after hours of looking on the web. The two drain plug sizes are:

12mm - 1.25
12mm - 1.75

Does anyone know where I could find such fittings?

Any help would be appreciated!

Thanks!

---

Oops, soory I missed this. I can help you right away with one and probably the other, given some time.

Toyota p/n: 15772F is a 12mm X 1.25 single banjo. Used as the oil cooler return to the pan on the 7M-GTE motor, 1987 to 1992 turbo Supras. These engines also use many other sizes of banjos. Check with a Toymotor dealer or mech.

[ October 24, 2005, 04:25 PM: Message edited by: chenobylite ]