Fuel inj distributor oil issue

[Barry H.]

Re: Fuel inj distributor oil issue

Jerry, The oil restrictor that John is talking about is in the distributor casting at bottom of the 1/8" tapped hole for the brass elbow. If I remember correctly it is under 1/16". Years ago some guys would drill restrictor hole out to get "more Oil" to drive gears, thinking that more was better. The "KEY" is small oil restrictor, good shaft seal, & clear drain back hole at bottom. Sometimes I would solder enlarged hole & redrill to smaller size. Barry Holmes

[Dick W.]

Re: Fuel inj distributor oil issue

maybe you could use rear gear lube in the dist by plugging off the oil return and using the original oil feed line as a vertical vent like they do rear end gears.

No way to cool that oil Clemster. Might work on a street engine for short trips, but the pump drive off that shaft would generate quite a bit of heat in a race situation.

[Jerry G.]

Re: Fuel inj distributor oil issue

Jerry, The oil restrictor that John is talking about is in the distributor casting at bottom of the 1/8" tapped hole for the brass elbow. If I remember correctly it is under 1/16". Years ago some guys would drill restrictor hole out to get "more Oil" to drive gears, thinking that more was better. The "KEY" is small oil restrictor, good shaft seal, & clear drain back hole at bottom. Sometimes I would solder enlarged hole & redrill to smaller size. Barry Holmes

OK, things are becoming clearer. The restrictor in the casting has been drilled out. So i have a hole that passes 4 times what was designed for. I will solder up the current hole in the fitting that acts as a restrictor and drill it out with a 1/16 drill. Thank you Jerry

[Clem Z.]

Re: Fuel inj distributor oil issue

No way to cool that oil Clemster. Might work on a street engine for short trips, but the pump drive off that shaft would generate quite a bit of heat in a race situation.

the post above uses grease which i would not think would stand up like high temp rear gear lube.

[Clem Z.]

Re: Fuel inj distributor oil issue

OK, things are becoming clearer. The restrictor in the casting has been drilled out. So i have a hole that passes 4 times what was designed for. I will solder up the current hole in the fitting that acts as a restrictor and drill it out with a 1/16 drill. Thank you Jerry

if there is enough material i would install a screw in restrictor as solder may not hold up. if you want to do it your way i would braze the hole shut and then redrill

[Jerry G.]

Re: Fuel inj distributor oil issue

The restrictor hole I see is in the brass fitting that the oil line connects to. There is a .150 diameter hole in the fitting. Is this the restrictor? i have checked the drain back hole. it appears clear. It drains into the spacer ring area and then back down into the block,correct?

OK. I had some help from Don Baker here to figure out what I was REALLY looking at and seeing. I do have the restrictor in the casting. It's a 1/8 in opening that feeds into a groove on the pump drive cross shaft. So with the restrictor in place and the drain clear the logical place to look is the seal and the bushing. on ward and upward.

[Barry H.]

Re: Fuel inj distributor oil issue

Jerry, It might be easier to solder the hole in the tapered end of the brass elbow, then drill to size. If no good modify a new brass elbow.
Barry Holmes

[Tom P.]

Re: Fuel inj distributor oil issue

I agree 100% with Barry and Clem. REDUCE the size of the restrictor hole.
My personal choice would be to drill, tap and install a plug, then drill a small hole in the threaded plug.
Also, one thing that I haven't seen mentioned (maybe I just missed it), replace the original style open bearing with a bearing that has a seal on one side (seal toward upper housing).