[6spcab]

I know from my '44 days that rod bearings are a wear item similar to fuel filters and such. I have also read that the 968 does not appear to have AS MANY rod bearing failures as the 44's. So the question is, how many 968 owners have had a rod bearing failure?



The reason I ask is that rod bearing replacement is a simple and inexpensive procedure and would give me piece of mind if the #2 goes as it does in 44's.

I was also thinking of adding the oil scraper which many have claimed to add HP/TQ in the process of adding protection to the engine. Car does have 173k on it on original motor.



I had my first 944-an 86-go out at 32k miles. Proper oil level. Just driven very well. <img src="/forum/images/smilies/968/biggrin.gif" class="smilie" alt="" /> As a result I replaced the bearings in my Turbo's before they went out.



http://www.crank-scrapers.com/



http://www.crank-scrapers.com/prod01.html



http://forums.rennlist.com/rennforums/show...ng+rod+bearings



Also since I would be in there I was thinking of coating the bearings though that would be overkill for a street car but good piece of mind.



http://www.calicocoatings.com/index.phtml?coatings



Lee

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[flash]

yeah, supposedly the oil squirters took care of that



i haven't heard of anybody having the problem yet

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[6spcab]

[quote name='flash' date='Sep 25 2005, 12:19 PM']yeah, supposedly the oil squirters took care of that



i haven't heard of anybody having the problem yet

[right][post="10269"]<{POST_SNAPBACK}>[/post][/right][/quote]



That's good to know. I will probably proceed anyhow as I am curious is what the splash guard will produce on this engine.

Lee

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[Dave]

PCA National Tech Guru told me that the 968 doesn't really have this issue either. He suggested checking rod bearings at 150k miles.



My heavy flogging at the track and 140k miles encouraged me to error on the side of safety and replace them (pad gasket was leaking, so I had a very good excuse to do it).



That said, I have a friend that had a 968 since new, 70k+miles on it, many of them DE miles, and #2 spun in the Carrousel at Road America.



My personal opinion is that the 968 motor is less prone to this failure, but not impervious.



The tell-tale sign of abnormal rod bearing wear in my previous 944 was a small X-mas-tree-shaped formation of little slivers of metal on the oil pan magnet. Inspect this magnet carefully and you usually catch it in sufficient time, in my experience.

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[bob blackwell]

Dave, did your 968 have the magnetic drain plug from the factory or did you replace the original? My '93 does not have the magnetic drain plug and when I tried to buy one I was sold a magnetic drain plug from a 911 which does not fit. Would like to replace mine with the magnetic one. Meanwhile I am just cutting the oil filter open at oil changes and examining the residue. So far, so good, (118K miles) good luck, Bob Blackwell.

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[Dave]

Bob, It's funny you mention that. When I bought the 968, I figured that someone had dropped the plug and perhaps the magnet fell out. I was unaware that the 968 may not have the magnet as stock. I replaced it with a 944 P/N as I recall, I believe it was the same plug as on my 944 NA '88.



I wonder... If this plug and the one on the other side of the pan get switched around... I have not removed the other one, but it carries a simple (non-model-specific) P/N.



But yes, I put a late 944 plug in there.

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[insite94]

I have 182K miles on my coupe with supposed original bearings, as complete records since new do not show this work. I do not track the car, but can't be sure of PO's - probably not them either considering the stock nature of the car.



About the magnetic drain plug, highly recommended. Not only does it collect metal slivers, it collects cam teeth too ( <img src="/forum/images/smilies/968/ohmy.gif" class="smilie" alt="" /> ), which was my first clue I was driving a hand grenade. Fortunately, the magnetic drain plug saved me from a shattered motor...only cost me 2 new cams, 16 lifters, and whole bunch of "while you're in there" work too. <img src="/forum/images/smilies/968/dry.gif" class="smilie" alt="" /> Coulda been worse! <img src="/forum/images/smilies/968/biggrin.gif" class="smilie" alt="" />



Best,



Buzz

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