05-11-2018, 06:07 PM
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#1
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Rich
Join Date: Dec 2017
Location: IL
Posts: 40
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start up rattle
My 2000 boxster s has the cold start up rattle that many have reported. It only does it the first start of the day. I think it is a chain tensioner (all three are new) bleeding down or lifters bleeding down. Can an oil pressure release valve cause this noise? The noise is loud and i would really like to fix it. Verio cam tensioners and pads are also new.
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05-11-2018, 06:24 PM
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#2
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Registered User
Join Date: Jul 2005
Location: MA
Posts: 882
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I had a similar noise after my car sat for a few days. In my case, replacing the filter housing (with it’s integrated valve) solved the problem. About $20 with filter from pelican last I checked.
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98 Arena Red 986
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05-12-2018, 06:29 AM
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#3
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Registered User
Join Date: Aug 2015
Location: Fulshear, TX
Posts: 266
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Quote:
Originally Posted by Rich XTR
My 2000 boxster s has the cold start up rattle that many have reported. It only does it the first start of the day. I think it is a chain tensioner (all three are new) bleeding down or lifters bleeding down. Can an oil pressure release valve cause this noise? The noise is loud and i would really like to fix it. Verio cam tensioners and pads are also new.
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I would like to find a solution to this as well. I have replaced all three chain tensioners and the vario cam tensioners and pads (for other reasons). I have a new oil pressure release valve to install. If anything I think the startup rattle is worse after replacing the tensioners. I also installed a spin on oil filter adapter.
Dave in TX
2001S
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05-12-2018, 06:57 AM
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#4
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Registered User
Join Date: Nov 2013
Location: Emerald City
Posts: 885
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Quote:
Originally Posted by Stroked & Blown
I had a similar noise after my car sat for a few days. In my case, replacing the filter housing (with it’s integrated valve) solved the problem. About $20 with filter from pelican last I checked.
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Interested to hear if this is something others have done. Filter housing as is in the plastic cartridge cover? From what I hear the lifter noise is normal due to the boxer engine design.
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05-12-2018, 07:25 AM
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#5
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"50 Years of 550 Spyder"
Join Date: Jun 2015
Location: The Road
Posts: 946
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Cold start rattle is normal....
...it takes a few seconds for the tensioners to pump up with oil.
First Gen Miatas have a lifter tick on cold start up.
Nothing to worry about.
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550 SE #310---"It's more fun to drive a slow car fast, than a fast car slow."
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05-12-2018, 04:09 PM
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#6
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still plays with cars...
Join Date: May 2011
Location: Baden, ON, Canada
Posts: 1,088
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Mine does the same thing too. I’m still running the original tensioners, but I’m using an LN spin on adapter. If it sits a couple of days it does the rattle thing.
It almost seems like the early 5 chain engines make the start up rattle more than the later engines.
I cringe when it rattles, so I turn the key until it just fires and the shut it down. I do this three times to prime the tensioners and it doesn’t rattle.
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Six speed 2000 Boxster S
Arctic Silver on Metropol Blue | LN Dual Row IMSR | Arctic Silver console, spoiler frame & bumperettes | Crios mod | Technobrace | RoboTop module & modified convertible top relay for one-touch roof operation
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05-13-2018, 03:44 PM
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#7
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Rich
Join Date: Dec 2017
Location: IL
Posts: 40
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https://www.youtube.com/watch?v=7mAuOw7dvYw
Is this the noise that others are hearing and recommend don't worry? Assuming these cars didn't do this new...we can fix them.
Last edited by Rich XTR; 05-13-2018 at 04:08 PM.
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05-13-2018, 09:40 PM
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#8
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Registered User
Join Date: Feb 2017
Location: CO
Posts: 989
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Quote:
Originally Posted by BoxsterSteve
Mine does the same thing too. I’m still running the original tensioners, but I’m using an LN spin on adapter. If it sits a couple of days it does the rattle thing.
It almost seems like the early 5 chain engines make the start up rattle more than the later engines.
I cringe when it rattles, so I turn the key until it just fires and the shut it down. I do this three times to prime the tensioners and it doesn’t rattle.
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That’s seems more harsh than simply letting it do its thing. Mine “rattles” for about 1-2 seconds if that. Lots of chains to be moving around all at once. Not a worry.
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05-14-2018, 01:52 AM
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#9
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Registered User
Join Date: Mar 2016
Location: Spain
Posts: 995
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I get some lifter ticking for about a minute when I crank up. I read that this is inherit issue for flat 6 motors, do to the orientation the oil leaks down. Same reason they have a little smoking the oil collects in the cylinder when it sits awhile.
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2000 Boxster S Ocean Blue Metalic
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05-14-2018, 01:54 AM
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#10
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Registered User
Join Date: Mar 2016
Location: Spain
Posts: 995
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Quote:
Originally Posted by Rich XTR
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That is much harsher than what I get, that almost sounds like starter grinding.
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2000 Boxster S Ocean Blue Metalic
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05-14-2018, 10:37 PM
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#11
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Registered User
Join Date: Feb 2017
Location: CO
Posts: 989
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Quote:
Originally Posted by Rich XTR
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Yes, pretty much. Hard to tell in the video.
Last edited by Geof3; 05-14-2018 at 10:39 PM.
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05-16-2018, 06:43 PM
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#12
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Registered User
Join Date: Apr 2017
Location: Evanston, IL
Posts: 114
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How long does it go?
How long are people having this start up rattle? I was having it for about a second, and then it goes away.
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01-09-2019, 06:53 AM
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#13
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Registered User
Join Date: Aug 2017
Location: Central New York
Posts: 15
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Quote:
Originally Posted by Geof3
Yes, pretty much. Hard to tell in the video.
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Mine is doing the same thing too. Does anyone know if this is something that needs to be fixed, or is it just a character of the engine?
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01-13-2019, 05:23 AM
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#14
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Registered User
Join Date: Jul 2014
Location: Canada
Posts: 487
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Check the two exhaust heat shields. They can rattle on start up.
__________________
99 Boxster sold
88 944S sold
Xpit Formula Four sold
95 Integra Solo I sold
71 Opel GT sold
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01-13-2019, 09:35 AM
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#15
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1998 Boxster Silver/Red
Join Date: Sep 2017
Location: 92262
Posts: 3,075
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I don't know if it was a "seat of my pants" experience... but when recently I replaced the pressure relief valve with the updated/upgraded part I swear that rattle was recognizably less audible, and has continued to be so. I drive the car about 3 times a month (for now).
Someone tell me I'm hearing things, or second my assumption.
Thank you.
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1998 Porsche Boxster
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01-14-2019, 07:37 AM
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#16
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Registered User
Join Date: Oct 2008
Location: O.C. CA
Posts: 3,709
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Quote:
Originally Posted by jayspeed999
Mine is doing the same thing too. Does anyone know if this is something that needs to be fixed, or is it just a character of the engine?
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Yes it needs to be fixed, that's why Porsche reengineered the part in 2001 or 2002 with a integral spring to pre-tension the chain. there is a TSB that explains the issue & new part number. If you buy a new one from a dealer for a older Porsche you may get the original non-updated part.
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OE engine rebuilt,3.6 litre LN Engineering billet sleeves,triple row IMSB,LN rods. Deep sump oil pan with DT40 oil.
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