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Topic: Lifter orientation and Rebuild q's. (Read 963 times) previous topic - next topic

Lifter orientation and Rebuild q's.

5.0 Roller HO.
I am almost finished with my build and I have an odd questions.  Does it matter which way the lifter oiling hole points?  They are all brand new.

I installed them all facing the lifter valley.  It looks like it shouldn't matter.

Also, In my lower gasket kit, there is a large rubber ring that I don't recall from the teardown.  Its orangeish and about 4" in diameter or so.  Anyone know where that goes?

There are also 2 little plastic washers about the size of a quarter.  They appear to be nylon.  Any ideas?

-Dan

Lifter orientation and Rebuild q's.

Reply #1 –
The nylon washers should be oil drain plug gaskets...the large rubber ring you described sounds like the rear main seal.

As for the lifters, I've always put them in with the oil holes facing the valley...somebody else may have a little more insight into how important that may or may not be.

Good luck,
Don
Project 3G: Grandpa Grocery Getter-'85 Crown Vic LTD 2-door, 351W with heavily ported/polished GT40 heads, heavily ported/polished Typhoon Power Plus upper & lower intake, Comp Cams 265DEH retarded 1*, FAST EZ-EFI, HD T5, 8.8" 3.73 trac lock with extra clutches, 3G alt. swap, '99 CVPI front brakes, '09 CVPI rear disc brakes, '00 CVPI booster&m/c + wilwood adj prop valve.

Parted & Gone-'88 T-bird Sport, 351W swap, ported GT40 heads

Lifter orientation and Rebuild q's.

Reply #2 –
The large 4 inch or smaller "o'ring" may be the seal for the timing cover.
'88 Sport--T-5,MGW shifter,Trick Flow R intake,Ed Curtis cam,Trick Flow heads,Scorpion rockers,75mm Accufab t-body,3G,mini starter,Taurus fan,BBK long tube headers,O/R H-Pipe, Flowamaster Super 44's, deep and deeper Cobra R wheels, Mass Air and 24's,8.8 with 3.73's,140 mph speedo,Mach 1 chin spoiler,SN-95 springs,CHE control arms,aluminum drive shaft and a lot more..

Lifter orientation and Rebuild q's.

Reply #3 –
The lifters don't matter, there purge holes. No clue on the big oring. never had one in any of my kits.
Old Grey Cat to this.88 Cat, 5.0 HO, CW mounts, mass air, CI custom cam, afr165's, Tmoss worked cobra intake, BBK shorty's,off road h pipe, magnaflow ex. T-5,spec stage 2 clutch, 8.8 373 TC trac loc, che ajustables with bullits on the rear. 11" brakes up front. +

Lifter orientation and Rebuild q's.

Reply #4 –
I have the rear main and the timing cover seal.  I will take a picture of it tonight.  Its just a large rubber o-ring, not like a banded oil seal.  Its kinda similar to an oil filter o-ring but slightly larger.

Lifter orientation and Rebuild q's.

Reply #5 –
Quote from: danzajax;272512
I have the rear main and the timing cover seal.  I will take a picture of it tonight.  Its just a large rubber o-ring, not like a banded oil seal.  Its kinda similar to an oil filter o-ring but slightly larger.



I bet it's the rear main seal ;)
88 Thunderbird LX: 306, Edelbrock Performer heads, Comp 266HR cam, Edelbrock Performer RPM intake, bunch of other stuff.

Lifter orientation and Rebuild q's.

Reply #6 –
Quote from: thunderjet302;272526
I bet it's the rear main seal ;)

You really have confidence in my abilities.  :hick:

I found the box, and it turns out its a Oil Cooler Seal.  Go figure.

Seal, lifter (for reference), rear main.  Proof Im no idjit.
X

Would you guys advise putting a light RTV coating on my timing cover and wp gaskets?

Lifter orientation and Rebuild q's.

Reply #7 –
Question regarding max valve lift for 302. Is it 0.488int/ 0.488exh?
 

Lifter orientation and Rebuild q's.

Reply #8 –
Flat top pistons or notch?  Stock HO cam is .444 i think and I haven't heard of any problems with flat tops.  I just clayed my engine with a TFS1 cam (499/510), Windsor JR heads.  If it had flat tops it would probably have been close to the minimum acceptable clearance.

It all depends on your setup.  I think Vinny runs a E303 (498/498) cam on flat-tops and E7s without problems.