Low oil pressure in ZL-1 - Page 8

beater68427 · #71 03-14-2009, 06:42 PM

I have used hundreads of Jeff's distributors, and have even done some articles on them years ago, They are a good piece, I like to run the upper o ring and not the lower and I also like to cut a .010 groove in the lower to give the cam gear a little extra oiling on roller cams. Also use assembly lube on new gears icluding cam gear and distributor gear.

**69SSZL1** · #72 03-14-2009, 07:40 PM

Did your verify that the 3 1/8" pipe plugs are installed in the lifter valley oil gallery? they look like bolt holes but go right into the gallery and without them the oil will just squirt into the lifter area. The distributor does not need any o-rings, any standard Chevy distributor will work.

BUIZILLA · #73 03-14-2009, 07:42 PM

double check the lower o-ring situation

what camshaft?

what year block?

also, is it a roller cam? if so are the lifters correct? if not, they could hemmorage oil by uncovering the galley/lifter bore and it bleeds towards the pan area..

if rod side clearance is more than .010/.012 it'll lose it there also

are you taking pressure readings at the oil filter pad or the rear upper port behind the intake?

**Alss** · #74 03-14-2009, 08:04 PM

[ QUOTE ]
Did your verify that the 3 1/8" pipe plugs are installed in the lifter valley oil gallery? they look like bolt holes but go right into the gallery and without them the oil will just squirt into the lifter area.

[/ QUOTE ]

we have a winner!!..you guys are good..just a little late..Jking

...pulled the intake and..smoking gun..three pipe plugs missing!..motor is cleaned-re-bearinged and re-assembled ..going to pick it up now. Glad I took it out..lots of aluminum material from the building of the block that somehow survived the cleaning both the machinist and I did.now with fresh bearings I have no worries..crank and rods are fine as is the cam bearings too.

question on 074 heads..exhaust crossover..wet or dry..I have some water in mine..from the dissassmbly poosibily?

thanks again everyone for your knowledge and support

Albert

**SuperNovaSS** · #75 03-14-2009, 08:10 PM

Probably a good thing those were missing or you may have never found out about the missing bypass valve? Congrats, ALbert! I wish I could have been more helpful.

Jason

Jason

**Charley Lillard** · #76 03-14-2009, 08:12 PM

Is your engine assembly expert smacking himself on the forehead and doing a Homer Simpson "Doh" ?

**Alss** · #77 03-14-2009, 08:13 PM

[ QUOTE ]
Is your engine assembly expert smacking himself on the forehead and doing a Homer Simpson "Doh" ?

[/ QUOTE ]

over and over again!..we have to have a little talk

x Baldwin Motion · #78 03-14-2009, 08:19 PM

[ QUOTE ]
Is your engine assembly expert smacking himself on the forehead and doing a Homer Simpson "Doh" ?

[/ QUOTE ]

Dog427435 · #79 03-14-2009, 08:55 PM

[b] Happy endings are always enjoyable!!

**69SSZL1** · #80 03-14-2009, 08:56 PM

A Homer Simpson "Woo Hoo!" and sound of beer can opening

. That's great, good to take it out and clean everthing. The 074 exhaust crossover should be dry unless there is a leak or when manifold was removed. Were the heads ever pressure tested? They can be leaky. Good luck and have fun, lets us know when that beast is running! My ZL-1 is in this original paint SS (sorry) [image]

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