Are my lifters shot?

modusmortis

Member

Aug 3, 2006

54

0

6

Sep 23, 2007

#1

• Sep 23, 2007

• #1

So yeah, am trying to diagnose some valvetrain noise issues, and had the car apart. Was wondering what everyone thought of my lifters, the bearing surface in particular. Basically on the bearing surface the shiny surface vs. the less shiny surface. All of my lifters have this to some extent or another. On the first picture the bearing on the left really shows what I'm talking about.

About 500 miles.

New FRPP.

Not planning on reusing the lifter with the oil hole drilled incorrectly either.

 

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5spd GT

"the 5.0 owns all"

Founding Member

Aug 7, 2002

9,516

6

99

Arkansas

Sep 24, 2007

#2

• Sep 24, 2007

• #2

Were the lifter valley holes honed out? Or did you drop those in on a stock bottomend?

That does seem a little excessive, but some wear is going to happen.

Hopefully someone can help you out further...

 

modusmortis

Member

Aug 3, 2006

54

0

6

Sep 24, 2007

#3

• Sep 24, 2007

• #3

lifter bores were not honed. Bottom end is all stock, basically installed new lifters with my new hci package about 500 miles ago. I'm just wondering If the bearing surfaces are supposed to shine up with break-in. Additionally you can still see the crosshatch pattern on all the lifter bores.

I did install the lifters without any oil or engine break-in lube on them. And cranked the motor over without prelubing the engine with the oil pump via the distributor shaft hole. I was wondering if that was my problem since they were run dry till oil got to them during initial warmup.

 

5spd GT

"the 5.0 owns all"

Founding Member

Aug 7, 2002

9,516

6

99

Arkansas

Sep 24, 2007

#4

• Sep 24, 2007

• #4

That initial dry start may have caused those wear marks on the lifter...

 

BlownFiveLiter

have car, will race....wait, it doesn't run

15 Year Member

Nov 29, 1999

3,133

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108

Chicagoland

Sep 25, 2007

#5

• Sep 25, 2007

• #5

If you didn't prelube the top end, I'm betting they're shot. I coated mine in oil before I dropped them in, but I did prelube the engine since it sat on a stand for a year or so before I finally got around to finishing it up and installing it. Can you feel any of those grooves with your fingernail? If you can, I'd replace them or they may damage the lifter bore.

 

mustangmike6996

5 Year Member

Nov 10, 2005

483

6

29

clinton twp, MI

Sep 25, 2007

#6

• Sep 25, 2007

• #6

how long can you let an engine sit (while being built) without any damage to parts?

 

mrmustangman357

Member

Feb 11, 2007

763

3

18

Sep 25, 2007

#7

• Sep 25, 2007

• #7

forever, provided you used quality assembly lube where needed, and the engine stays in a safe climate so no corrosion occurs. You have to prelube the motor before firing though

 

modusmortis

Member

Aug 3, 2006

54

0

6

Sep 25, 2007

#8

• Sep 25, 2007

• #8

I can't feel any grooves with my fingernail. Just parts of the bearing surfaces are shined up really well. Is this something where I should replace them, or does this come due to normal wear?

 

65ShelbyClone

Founding Member

Sep 9, 2000

4,675

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119

Antelope Valley, SoCal

Sep 25, 2007

#9

• Sep 25, 2007

• #9

Which wear marks are you worried about? The big scary looking scratches or the polished areas?

The polished areas look relatively normal, the scored areas do not.