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The ball non-return valve in the lifters is either worn or dirty, there is no sure way of cleaning or fixing them, I have used Wynns lifter cleaner in the past but with dubious success.
Porsche no longer make the lifters but buy them in from INA, I have heard and read stories that these INA lifters only last about 10-15k?
Mine clattered quite badly when I restarted the car after two months took the best part of 15 mins to shut up, went up in oil grade and not had the problem back.
1992 968 Coupe
1986 Honda VF1000 FII
2016 Volvo XC90 D5 R-Design
(This post was last modified: 03-15-2015, 09:21 PM by
Waylander.)
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Philippe,
Good video...I had no idea there was so much to a lifter.
92 968 cab (cobalt blue/black top/grey int)
87 944S
19 Audi A6 3.0T
03 Toyota Tundra
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Last Saturday i replaced all of my lifters. 16 of them with brand new one's. Porsche sell them for about 56 dollars. I found an replacement for 60 euros for 16 of them. The lifters off an audi a100 will fit. The only difference is that the length of the lifter is .5 mm longer but that has no effect . Running the car gives a lot more bottom power. It is quiet and very smooth.
Ritchie owner of a '92 Coupe Tiptronic with the following standardoptions: C00, 030, 139, 249, 258, 340, 383, 387, 403, 418, 454, 490, 494, 567, 573, 650, 690, 14951
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And no tapping noise cold or hot☺☺☺☺
Ritchie owner of a '92 Coupe Tiptronic with the following standardoptions: C00, 030, 139, 249, 258, 340, 383, 387, 403, 418, 454, 490, 494, 567, 573, 650, 690, 14951
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For 60 bucks i would not do that. Order 16 new ones.
Ritchie owner of a '92 Coupe Tiptronic with the following standardoptions: C00, 030, 139, 249, 258, 340, 383, 387, 403, 418, 454, 490, 494, 567, 573, 650, 690, 14951
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Audi A100 lifters you don't happen to have a part number do you, I'm in no rush I'm in hospital after having a heart attack Sunday night
Might be a while for I can get back to the car
1992 968 Coupe
1986 Honda VF1000 FII
2016 Volvo XC90 D5 R-Design
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1992 968 Coupe
1986 Honda VF1000 FII
2016 Volvo XC90 D5 R-Design
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Quote:Audi A100 lifters you don't happen to have a part number do you, I'm in no rush I'm in hospital after having a heart attack Sunday night
Might be a while for I can get back to the car
Was this the result of an invoice from the Porsche dealer for parts and service? It has been known to happen...
Seriously, best wishes for a very speedy recovery, and hope that you will be behind the wheel again soon.
Regards,
Jay
“Faster, Faster, until the thrill of speed overcomes the fear of death.” - Hunter S. Thompson
"I couldn't find the sports car of my dreams, so I built it myself." ~Dr. Ferdinand Porsche
"968Forums, a quaint little drinking community with a serious horsepower problem"
"Life's journey is not to arrive at the grave safely in a well-preserved body, but rather to skid in sideways, totally worn-out, shouting, 'Holy sh*t! What a ride!'"- Unknown
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first of all best wishes Waylander.
In according to the videoclip there is one problem when you open an Original lifter of a 968. You can not open the inside with the small ball. This because you have to crack a circlip.
so you can not pull them back together and think it will work without any problem for the rest of its life.
I looked around for a long time and have measured all the details from the 968 lifter that I had spare and adfter some time I found out that the --- "same " --- lifter was used in an Audi.
two small differences. first the total length is 0,5 mm longer.
second there is a groove that the Original lifter does not have. But the lifters used in a 928 has them too. So there should be no problem with getting the oil inside ther. Even better with an extra groove.
the mass of the new lifters are the same.
The working range of the lifter to clear the valveclearence is equal to the Porsche lifter.
I order a set of 20 so I opened two of the new lifters to measure them before I concluded that I would mounted them in the 968.
After mounting I started the car and it is running smooth quiet and without that tapping noise after 24 years of collecting dirt in the old lifters.
now I can start the car and turn it off when it is still cold. Before I Always had one of the lifters that after a second cold start would tap till the engine was warm,
running the engine gives you more torque I noticed in the lower range. I think the valves are opening much more and better because the new lifters does not loose there oil.
On Ebay you can order this set that I used.
http://www.ebay.com/itm/16-x-HYDROSTOsEL...2eddd491f8
For the price you can change them every time when you are doing a beltchange :-)
I'm happy with the result
Ritchie owner of a '92 Coupe Tiptronic with the following standardoptions: C00, 030, 139, 249, 258, 340, 383, 387, 403, 418, 454, 490, 494, 567, 573, 650, 690, 14951
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Well to the sadness and deep disappointment to all I have survived this ordeal
The blood supply to the left hand side of my heart was blocked almost completely (you need to make sure those drains are cleared)
Had to have two stents fitted to re open the blocked artery in doing this while you are wide awake and watching on your own screen is amazing, even though fitting the first one block the flow completely and caused me to have a small arrest there and then, it was like being kicked by a horse
Feeling a little battered and bruised but on the mend
Thanks all for your support
1992 968 Coupe
1986 Honda VF1000 FII
2016 Volvo XC90 D5 R-Design
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The idea of flash as a doctor is very scary
1992 968 Coupe
1986 Honda VF1000 FII
2016 Volvo XC90 D5 R-Design
