 Engine's out again, problem found..., previous post about compression leak.. |
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| Mike D. |
 Dec 12 2004, 11:39 PM
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#21
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OK, It runs now, and pretty good too!  Group: Members Posts: 1,445 Joined: 3-January 03 From: Santa Clarita, Ca Member No.: 85 Region Association: None 
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(IMG:style_emoticons/default/biggrin.gif) Oh, and today I had some help in the garage. It made things that much faster... (IMG:style_emoticons/default/smile.gif)
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| skline |
Dec 12 2004, 11:41 PM
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#22
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Born to Drive Group: Members Posts: 7,910 Joined: 26-December 02 From: Costa Mesa, CA Member No.: 17 Region Association: Southern California |
They dont just lap those in like the type 4's? I hate blown head gaskets, they make such a mess.
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| Mike D. |
Dec 13 2004, 12:00 AM
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#23
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OK, It runs now, and pretty good too! Group: Members Posts: 1,445 Joined: 3-January 03 From: Santa Clarita, Ca Member No.: 85 Region Association: None
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QUOTE(skline @ Dec 12 2004, 09:41 PM) They dont just lap those in like the type 4's? I hate blown head gaskets, they make such a mess. yeah it is quite a mess, Now I have to decide what to do. should I pull the other side and have everything cleaned. I was thinking I would just be able to put new head gaskets in...but know...??? (IMG:style_emoticons/default/headbang.gif) |
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| sixnotfour |
Dec 13 2004, 12:05 AM
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#24
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914 Wizard Group: Members Posts: 10,440 Joined: 12-September 04 From: Life Elevated..planet UT. Member No.: 2,744 Region Association: Rocky Mountains 
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The cams are 130HP set 3.0-3.3mm 911/911L USA
E cams = E distributor. On these old motors use should check the lift at overlap , in case they have changed or reground to a different profile than the P/N Hope this helps |
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| Mike D. |
Dec 13 2004, 12:19 AM
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#25
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OK, It runs now, and pretty good too! Group: Members Posts: 1,445 Joined: 3-January 03 From: Santa Clarita, Ca Member No.: 85 Region Association: None
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QUOTE(sixnotfour @ Dec 12 2004, 10:05 PM) The cams are 130HP set 3.0-3.3mm 911/911L USA E cams = E distributor. On these old motors use should check the lift at overlap , in case they have changed or reground to a different profile than the P/N Hope this helps It doesn't look like much overlap if any. Is overlap measured in degrees of rotation, or in mm of valve travel at overlap? |
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| sixnotfour |
Dec 13 2004, 12:41 AM
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#26
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914 Wizard Group: Members Posts: 10,440 Joined: 12-September 04 From: Life Elevated..planet UT. Member No.: 2,744 Region Association: Rocky Mountains
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mm valve lift at top dead center ,when exhaust is closing and intake is opening . zero at TDC comp. (intake valve.)
Its porsche's measurement for timing the cams. not the cams grind spec . typical cam timing specs S 5.0-5.4 T 2.3-2.7 Carrera-6 6.7-6.9 |
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| Mike D. |
Dec 13 2004, 01:44 AM
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#27
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OK, It runs now, and pretty good too! Group: Members Posts: 1,445 Joined: 3-January 03 From: Santa Clarita, Ca Member No.: 85 Region Association: None
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OK, I did this measurment before the engine went in the car the first time. it's 3.2mm I think. I had to replace one of the chain tentioners and the chain slipped, so I measured the other side, about ten times with a stanard dial gauge and came up with .129". So I set up the other to the same.
Does this make sense? (IMG:style_emoticons/default/huh.gif) |
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| sixnotfour |
Dec 13 2004, 02:29 AM
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#28
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914 Wizard Group: Members Posts: 10,440 Joined: 12-September 04 From: Life Elevated..planet UT. Member No.: 2,744 Region Association: Rocky Mountains
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exactly , p/n , your measurement , and the book , all match. (IMG:style_emoticons/default/smilie_pokal.gif)
are the head gaskets just on in different directions (flipped to each other) ? |
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| Mike D. |
Dec 13 2004, 01:06 PM
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#29
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OK, It runs now, and pretty good too! Group: Members Posts: 1,445 Joined: 3-January 03 From: Santa Clarita, Ca Member No.: 85 Region Association: None
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QUOTE(sixnotfour @ Dec 13 2004, 12:29 AM) exactly , p/n , your measurement , and the book , all match. (IMG:style_emoticons/default/smilie_pokal.gif) are the head gaskets just on in different directions (flipped to each other) ? Thanks For The Info! So everything is to the E spec, right? I found more info that said the cam p/n was 68 911L Sporto with smog pump. Was the 911L just an E with a sporto, I'm assuming that L was for Luxury, maybe. Not sure about the head gaskets being flipped. did you notice in the pics how one has dots around the sealing edge and the others do not? What about all that carbon? I've only had the engine in the car for about 500-600 miles. |
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| sixnotfour |
Dec 13 2004, 03:38 PM
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#30
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914 Wizard Group: Members Posts: 10,440 Joined: 12-September 04 From: Life Elevated..planet UT. Member No.: 2,744 Region Association: Rocky Mountains
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an L is an L but the cams are the same as an E . The term E is used because it is used more years and easier to identify with.
Was the motor rebuilt ? did it smoke ? did it use a bunch of oil ? Do you drive like a granny ? (That was meen I apoligize) It definantely looks oily wet, but if it does not exhibit any of the above its ok. Valve job and rings would be nice right now , but if the case leaks so would a total rebuild. Budget Time (Money) Its all Fun (IMG:style_emoticons/default/biggrin.gif) Yeah Inoticed the dots thats why I think the one without is flipped. |
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| Mike D. |
Dec 13 2004, 05:22 PM
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#31
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OK, It runs now, and pretty good too! Group: Members Posts: 1,445 Joined: 3-January 03 From: Santa Clarita, Ca Member No.: 85 Region Association: None
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I got this engine from Brad about two years ago, and the PO from him had the engine rebuilt. He ran it very little before I got it. At that time we knew it was a older rebuild and the work was probable done a few years before he had it. The engine is a bit of a frankenstein. with the '70 case and '68 everything else (oh, and a 2.7 shroud and fan housing).
It only smoked on start up, (unless you count the smoke burning off the headers. (IMG:style_emoticons/default/biggrin.gif) ) and not every time, but moreso after the addition of an external oil cooler. I attributed that smoke to the fact that there is now 3.5-4 more qt.'s of oil. It only "used" oil because it was leaking. Left chain cover, both bottom valve covers (6 bolt), int. shaft cover on front, oil sump plate, maybe the rear main, have to check. Oh, and it is dripping from that fabulous Vellos oil tank, not sure where but I plan to check it everywhere. I have new silicone vavle cover gaskets and new sump plate and silicone gaskets for that too. Plan is to definately get everything sealed up tight. The carbon is very soft and comes off easily. I spent alot of time trying to dial this engine in myself. It has seen tuning time with three others. All of this could have helped produce the carbon mess. |
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| Mike D. |
Dec 14 2004, 04:55 PM
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#32
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OK, It runs now, and pretty good too! Group: Members Posts: 1,445 Joined: 3-January 03 From: Santa Clarita, Ca Member No.: 85 Region Association: None
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| ArtechnikA |
Dec 14 2004, 05:53 PM
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#33
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rich herzog Group: Members Posts: 7,390 Joined: 4-April 03 From: Salted Roads, PA Member No.: 513 Region Association: None |
QUOTE(Mike D. @ Dec 13 2004, 11:06 AM) Was the 911L just an E with a sporto, I'm assuming that L was for Luxury, maybe. '68 911S couldn't meet US emissions with Webers, so plus or minus a little, an L is a 911S (Luxe...) with a T engine so they could still have an 'entry-level' and an upscale 911. E cams came in the next year with the first of the fuel injected (MFI) cars, and the T/E/S lineup returned. i'll recheck my sources on cam specs tonight once i'm back home with the library ... |
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| sixnotfour |
Dec 15 2004, 12:27 AM
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#34
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914 Wizard Group: Members Posts: 10,440 Joined: 12-September 04 From: Life Elevated..planet UT. Member No.: 2,744 Region Association: Rocky Mountains
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QUOTE Posted on Dec 13 2004, 01:38 PM -------------------------------------------------------------------------------- an L is an L but the cams are the same as an E . The term E is used because it is used more years and easier to identify with. If it doesnt exhibit any of the before mentioned symptoms, then fix the head gasket and runner. Does the Head look like it needs to be recut ? so it will seal. I had play plumber today (IMG:style_emoticons/default/sad.gif) |
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