STAR57

My mechanic has not been able to get the new lifters to quiet down, he is taking it aapart and replacing them, I found out that he is not using the Genuine Porsche ones he is using an after market type.

Does it make a diference or are they all the same?

What do you guys think should be the labor to change the lifters?
TIA

chris walrod

Uppers, lowers or both?

Steve Weiner-Rennsport Systems

Use factory parts ONLY.

There are now a number of Chinese-made "Porsche Factory" parts around that allow the installer a much bigger profit margin. They are inferior in every way to OEM stuff (and sometimes hard to spot the differences).

Davies

This seems pretty common. People replacing collapsed/leaky lifters, but getting no discernible reduction in valve noise. Is it possible that the noise is actually from something else? Slightly worn valve guides?

JasonAndreas

The factory supplier is a company called INA and I've asked around here and offline but nobody could say one way or the other. I think I know of an easy and quick way that should work for priming the lifters, the problem is not everyone is going to have the equipment. If you were to completely submerge a lifter in a small cup of oil and then put the cup under vacuum at 29" you would completely "degass" (pull all the air out of) the lifter. One of those Foodsaver vacuum pumps won't pull 29" of mercury but it might just be close enough? With a regular vacuum pump (which most shops already have) you would also need a bell-jar (expensive) but the Foodsaver comes with little containers that could be used instead.

Garth S

Good idea!
Many of our tool kits have a Mityvac pump for diagnostics .... RTV a vac hose into the cover of a poly pill bottle ( to avoid shards if the container implodes), and pump down. Two to three quick cycles should promote the oil displacement of air ...

AOW162435

Fellow 993 owner and friend, Neil, recently started replacing all of his lifters. He did extensive research into this very topic and finally found that INA is the correct manufacturer of the Porsche lifters. He was able to purchase these for $17 each - while the best price from a local Porsche parts department was $70+ each!

I will gladly find out and post the source if anyone is interested. For what it's worth, I witnessed the removal of the first few original lifters - they were marked INA. And the o-rings fell apart when we touched them.

Andreas

Rick Sylvestri

Thanks Andreas,

About how many miles were on Neil's 993?

AOW162435

Rick,
I think his 993 now has close to 80,000 miles.

Andreas

pcar964

Andreas, looking forward to getting the name of the districutor selling the INA lifters for $17

AOW162435

Price has gone up:

INA lifters

Andreas

pcar964

thanks for the link!

mike993c2s

Got mine through Pelican parts, same price with free shipping.

http://www.pelicanparts.com/catalog/...pg4.htm#item15

STAR57

I have been informed that the car is ready, aparentlly it was a colapsed lifter, on the new installed ones.
I was shocked at my bill 9 hours.
I will wait to pass judgement before I look at the bill in full and drive the car.
Thank you all for all your constructive feedback and information, I sure learned a lot, I'm not sure its wise to own a vehicle that only 3 people in a city of a million know how to work on, it automaticlly gives the shops a license to steal, as I have learn more about the mechanics and intricacies of the 993, I cant help but wonder if my love for Porsche will outweigh my intolerance for being screwed without being kissed first.
The Dealer has to make a significant investment in tools, infrastructure and training for its people, for that I can somewhat understand how much they want to charge, taking it to an independent should give us the owners a bit of a break in costs, quality of service and overall better understanding of our cars, and full disclosure and transparency, hope you guys are getting that, I sure have not.
So you guys better understand my frustration I took it upon my self to call one of the best known Porsche mechanics on this site, I let you guess....yes, from Portland, without knowing before hand how much I was being charged on the lifters job he said it was a 6 hour job, and my mechanic charged me 9
Is Kia coming up with a Sports Car ??
God bless.

AOW162435

9 hours. Wow.

Do you know if he removed your power steering pump in order to replace your passenger-side intake lifters?

The tools necessary for this job are common hand tools - nothing specialized.

Andreas