 Engine rebuild finishing up, (gratuitous clean engine photo) |
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| Retroracer |
 May 22 2018, 02:23 PM
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#1
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Senior Member  Group: Members Posts: 609 Joined: 7-July 13 From: Bend OR Member No.: 16,100 Region Association: Pacific Northwest 
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So, finally getting the 2.2l six back together again after some scary cam chain noises happening back in December. Some repair need on the fan shroud (seemed worth salvaging rather than replacing) and should be good to go.
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| Front yard mechanic |
May 22 2018, 02:30 PM
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#2
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Senior Member Group: Members Posts: 1,154 Joined: 23-July 15 From: New Mexico Member No.: 18,984 Region Association: None
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Nice where is the like button (IMG:style_emoticons/default/driving-girl.gif)
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| porschetub |
May 22 2018, 03:03 PM
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#3
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Advanced Member Group: Members Posts: 4,697 Joined: 25-July 15 From: New Zealand Member No.: 18,995 Region Association: None |
QUOTE(Retroracer @ May 23 2018, 08:23 AM)  So, finally getting the 2.2l six back together again after some scary cam chain noises happening back in December. Some repair need on the fan shroud (seemed worth salvaging rather than replacing) and should be good to go. Very nice,what was the exact issues with your cam chain,tentioners?. |
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| Retroracer |
May 22 2018, 03:27 PM
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#4
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Senior Member Group: Members Posts: 609 Joined: 7-July 13 From: Bend OR Member No.: 16,100 Region Association: Pacific Northwest
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porschetub - so as best I can make it out, it was a case of old, stretched cam chains and a tolerance stack up on the idler arms / Carrera tensioner combination that caused one of the chains to laterally misalign itself and rub on the casing. Made a hell of noise at the time - which I incorrectly assumed was a failed tensioner - but on pulling the engine and checking, all major components were operating as expected, most importantly, timing had not jumped.
I split the case to confirm the health of the IMS gear - all looked good. So some adjustment on the tolerancing of the idler arms and fresh chains put in, and we'll see what happens.... - Tony |
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