12-11-2014, 02:41 PM
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#1
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Registered User
Join Date: Oct 2008
Location: O.C. CA
Posts: 3,709
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You can clean & test the lifters by submerging in new clean oil & heating to 250 degrees. Keep them in order so they can be returned to their mating cam lobe if good. Once up to temp compress the plunger & watch for dirty squirts coming out the side until it's cleaned out. If it won't pump up firm, replace it.
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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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12-11-2014, 04:16 PM
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#2
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Registered User
Join Date: Aug 2009
Posts: 1,466
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That looks like a good trick Thank you.
Still if it come down to it are there any special trick, or measurement's that I have to maintain if I end up replacing a couple lifter or would it be best to replace them all and the cages. I already had a price it's about $1000 a head in parts.
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2003 Black 986. modified for Advanced level HPDE and open track days.
* 3.6L LN block, 06 heads, Carrillo H rods, IDP with 987 intake, Oil mods, LN IMS. * Spec II Clutch, 3.2L S Spec P-P FW. * D2 shocks, GT3 arms & and links, Spacers front and rear * Weight reduced, No carpet, AC deleted, Remote PS pump, PS pump deleted. Recaro Pole position seats, Brey crouse ext. 5 point harness, NHP sport exhaust
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12-11-2014, 04:45 PM
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#3
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Registered User
Join Date: Dec 2009
Location: Orange County, CA
Posts: 1,981
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Quote:
Originally Posted by BYprodriver
You can clean & test the lifters by submerging in new clean oil & heating to 250 degrees.
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For safety reasons, it's better if you do it when your wife is not at home… 
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12-11-2014, 07:33 PM
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#4
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Engine Surgeon
Join Date: Aug 2008
Location: Cleveland GA USA
Posts: 2,425
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Quote:
Originally Posted by BYprodriver
You can clean & test the lifters by submerging in new clean oil & heating to 250 degrees. Keep them in order so they can be returned to their mating cam lobe if good. Once up to temp compress the plunger & watch for dirty squirts coming out the side until it's cleaned out. If it won't pump up firm, replace it.
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Someone attended my M96 102 Engine Assembly School.
The clearances that you seek do not exist....
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Jake Raby/www.flat6innovations.com
IMS Solution/ Faultless Tool Inventor
US Patent 8,992,089 &
US Patent 9,416,697
Developer of The IMS Retrofit Procedure- M96/ M97 Specialist
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12-12-2014, 05:26 AM
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#5
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Registered User
Join Date: Aug 2009
Posts: 1,466
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So for reasonable tolerance. If I use a digital inside inspection micrometer on two axis's say 12-6 and 3-9 on every hole in the tappet housing and there is less than .0002" to .0004" variation, the housing should be OK to reuse.
Then if I purchase a new OE Porsche lifter I should be able to install it with out a second thought.
__________________
2003 Black 986. modified for Advanced level HPDE and open track days.
* 3.6L LN block, 06 heads, Carrillo H rods, IDP with 987 intake, Oil mods, LN IMS. * Spec II Clutch, 3.2L S Spec P-P FW. * D2 shocks, GT3 arms & and links, Spacers front and rear * Weight reduced, No carpet, AC deleted, Remote PS pump, PS pump deleted. Recaro Pole position seats, Brey crouse ext. 5 point harness, NHP sport exhaust
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