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Registered
Join Date: Feb 2000
Location: Kingsport, TN
Posts: 2,935
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Occasional Valve Tick On Startup
Every now and then I get a little valve train tap when I first start the engine. It immediately goes away as soon as the oil pressure gauge moves upward. Such noises never occur when the engine has been running.
I think oil is draining off of something in the valve gear. Is this a problem? It began doing this occasionally a little over 1.5 years ago. I used Mobil 1 15w-50 in the car and change oil every other track event meaning every other month as I do a track event every month. Engine has 153K on it and has been used as a semi-daily driver and track vehicle since 1996. Belts are changed every year. It runs well. There are no metal chips or anything link that on the oil drain plug. There is, however, a small bit of paste sticking to it. The amount of paste has decreased considerably since I added a second oil cooler. Anyway, should I just continue along my merry way or repalce some parts?
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Lawrence 1986 951 2002 SLK32 AMG 1987 328GTS 2011 528i |
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02-25-2005, 08:12 AM
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Parrothead member
Join Date: Jul 2003
Location: Monmouth county, NJ USA
Posts: 13,889
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Sounds like your lifters are bleeding down , not something to be overly concerned about. If it was constant ticking youd have a problem.
What does your o/p guage sit at normaly
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Vinny Red '86 944, 05 Ford Super Duty Dually '02 Ram 3500 Diesel 4x4 Dually, '07Jeep Wrangler '62 Mercury Meteor '90 Harley 1200 XL "Live your Life in such a way that the Westboro Baptist Church will want to picket your funeral." |
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02-25-2005, 08:18 AM
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Location: Kingsport, TN
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Oil pressure gauge (assuming it is correct) reads 5 bars at above idle speed. When hot it reads 3.5 bars at idle but immediately jumps back to 5 when you tap the gas.
Thanks for input.
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Lawrence 1986 951 2002 SLK32 AMG 1987 328GTS 2011 528i |
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02-25-2005, 08:42 AM
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Join Date: Jul 2001
Location: Edmonton, Alberta, Canada
Posts: 4,530
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If its happening overnight you more than likely have a bad lifter.
Its a nuisance at this point. I would wait for the next servicing before digging in. (Preferrably next head gasket)
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Alex - PCA Polar Region - Boxster Muncher 86' 944 Turbo - Megasquirt - 326 rwhp/340lbft @ 18 psi SOLD www.edmontonhomelife.com www.edmontonrealestate.ws |
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02-25-2005, 08:51 AM
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Join Date: Feb 2000
Location: Kingsport, TN
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Yes, it takes a number of hours for it to happen and then it doesn't always happen.
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Lawrence 1986 951 2002 SLK32 AMG 1987 328GTS 2011 528i |
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02-25-2005, 08:56 AM
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Mein Gott!
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Mine has been doing this for about the last 4+ years - I've never had a problem. Keep going about your business.
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Johnny 1987 944S 1984 944 (R.I.P.) 1972 Triumph TR6 - 100% trouble free between breakdowns 2003 BMW 325xi |
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02-25-2005, 10:54 AM
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Location: Kingsport, TN
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OK, just wanted to check with you guys. I'll leave things as they are.
Thanks.
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Lawrence 1986 951 2002 SLK32 AMG 1987 328GTS 2011 528i |
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02-25-2005, 12:08 PM
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Registered
Join Date: Jan 2003
Location: New York
Posts: 891
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Quote:
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Tom Early '85 944 |
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02-25-2005, 03:08 PM
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