Welcome to the slippery slope..., Porsche 6-cylinder conversion |
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Welcome to the slippery slope..., Porsche 6-cylinder conversion |
mb911 |
Jun 18 2017, 07:22 AM
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#21
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914 Guru Group: Members Posts: 6,818 Joined: 2-January 09 From: Burlington wi Member No.: 9,892 Region Association: Upper MidWest |
Started the teardown and did some much needed garage cleaning. (IMG:http://www.914world.com/bbs2/uploads_offsite/c1.staticflickr.com-19709-1497729296.1.jpg) Have you thought about just doing a tidy up,replace chain case gaskets,check chains and ramps,check rocker shafts for placement,reseal the trio of leaks on the top of the engine,resurface and reseal rocker covers after valve reset relace RMS and front seal etc etc. I really don't know if you have a core motor or a previous good runner but I bought mine with little history did the above and have a wee jem,the above also is a good indicator of general condition ,anyway you head which ever way suits (IMG:style_emoticons/default/smile.gif) I was going to do that same thing on mine but found a stray chunk of bearing. Turns out my crank had to be reground .. Be careful if its a core it should all come apart to be sure.. |
colingreene |
Jun 19 2017, 09:37 AM
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#22
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Senior Member Group: Members Posts: 729 Joined: 17-October 13 From: Southern California Member No.: 16,526 Region Association: Southern California |
So your friends with Chris, His 911 looks so good since he painted it.
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mepstein |
Jun 19 2017, 10:05 AM
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#23
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914-6 GT in waiting Group: Members Posts: 19,253 Joined: 19-September 09 From: Landenberg, PA/Wilmington, DE Member No.: 10,825 Region Association: MidAtlantic Region |
Started the teardown and did some much needed garage cleaning. Have you thought about just doing a tidy up,replace chain case gaskets,check chains and ramps,check rocker shafts for placement,reseal the trio of leaks on the top of the engine,resurface and reseal rocker covers after valve reset relace RMS and front seal etc etc. I really don't know if you have a core motor or a previous good runner but I bought mine with little history did the above and have a wee jem,the above also is a good indicator of general condition ,anyway you head which ever way suits (IMG:style_emoticons/default/smile.gif) I was going to do that same thing on mine but found a stray chunk of bearing. Turns out my crank had to be reground .. Be careful if its a core it should all come apart to be sure.. Most engines are removed from the car for a reason. 50% of the "good running engines" we buy have major issues. |
Optimusglen |
Jun 22 2017, 09:24 AM
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#24
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Senior Member Group: Members Posts: 901 Joined: 26-February 16 From: Minneapolis Member No.: 19,709 Region Association: Upper MidWest |
Started a little bit of the tear down. Head studs are all solid, doesn't seem like any have pulled but I'll know for sure once a new tool comes in and I can proceed further.
Chains and tensioners look ok-ish, of course they'll get replaced but I'm thinking there wasn't any catastrophic damage. All matching spark plugs, good sign. Gasket sealant on the chain covers, someone has been in here before. Port matched heads to intake gaskets and presumably the carbs. Lots of gunk and build up in the cylinder cooling vanes. Overall it's just very dirty. My cup-o-tea. Been bagging and marking all of the fasteners, should make reassembly a breeze. (IMG:http://www.914world.com/bbs2/uploads_offsite/c1.staticflickr.com-19709-1498145082.1.jpg) So far so good. |
mb911 |
Jun 22 2017, 09:32 AM
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#25
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914 Guru Group: Members Posts: 6,818 Joined: 2-January 09 From: Burlington wi Member No.: 9,892 Region Association: Upper MidWest |
Started a little bit of the tear down. Head studs are all solid, doesn't seem like any have pulled but I'll know for sure once a new tool comes in and I can proceed further. Chains and tensioners look ok-ish, of course they'll get replaced but I'm thinking there wasn't any catastrophic damage. All matching spark plugs, good sign. Gasket sealant on the chain covers, someone has been in here before. Port matched heads to intake gaskets and presumably the carbs. Lots of gunk and build up in the cylinder cooling vanes. Overall it's just very dirty. My cup-o-tea. Been bagging and marking all of the fasteners, should make reassembly a breeze. (IMG:http://www.914world.com/bbs2/uploads_offsite/c1.staticflickr.com-19709-1498145082.1.jpg) So far so good. I have opted for mechanical tensioners on my build as there is no issues with them possibly failing. You run them a bit loose as the engine grows when it gets hot.. |
Optimusglen |
Jun 22 2017, 11:23 AM
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#26
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Senior Member Group: Members Posts: 901 Joined: 26-February 16 From: Minneapolis Member No.: 19,709 Region Association: Upper MidWest |
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Optimusglen |
Jul 6 2017, 01:50 PM
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#27
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Senior Member Group: Members Posts: 901 Joined: 26-February 16 From: Minneapolis Member No.: 19,709 Region Association: Upper MidWest |
After talking with someone who's been building these engines for years, and a close friend who built one recently, they both lean toward non-oil fed tensioners, but with the safety collar. I know everyone has their own reasons, but Aaron is one of the best in the business and really, I mean really knows his stuff.
Waiting to connect with a friend that has the correct 46mm crows foot and cam holding tool so I can move forward with the tear down. In the meantime I got a nice little box from 914rubber yesterday. (IMG:http://www.914world.com/bbs2/uploads_offsite/c1.staticflickr.com-19709-1499370655.1.jpg) That's seals for both trunks including bulkead, and all of the door/window seals. Love it. |
mb911 |
Jul 6 2017, 02:43 PM
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#28
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914 Guru Group: Members Posts: 6,818 Joined: 2-January 09 From: Burlington wi Member No.: 9,892 Region Association: Upper MidWest |
Yup I am actually using mechanical adjusters and running a tad loose as the engine grows as it heats up thus the chains will get tighter.
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iwanta914-6 |
Jul 6 2017, 03:20 PM
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#29
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Senior Member Group: Members Posts: 718 Joined: 26-June 09 From: Minnesota Member No.: 10,510 Region Association: None |
You are nuts! LOL
You had this car on the road driving for what, a month and now you want more power? You definitely have a sickness... I think you should just find a roller somewhere and start a GT tribute build (IMG:style_emoticons/default/wink.gif) (by the way, I'm quite jealous!) |
Mark Henry |
Jul 6 2017, 04:26 PM
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#30
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
There is a way to make the Carrera tensioners no fail called the Jerry Woods mod.
Just an FYI, it's what I did. |
Mark Henry |
Jul 6 2017, 04:31 PM
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#31
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
I'd seriously take Ben up on his offer, the proper tank is a way better solution on a /6 conversion.
On the engine case I'm also in the camp of a full teardown, you wouldn't build a new house on an old crumbing foundation. At minimum I'd get the case case savered, not timeserts, proper casesavers. |
Optimusglen |
Jul 6 2017, 06:55 PM
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#32
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Senior Member Group: Members Posts: 901 Joined: 26-February 16 From: Minneapolis Member No.: 19,709 Region Association: Upper MidWest |
You are nuts! LOL You had this car on the road driving for what, a month and now you want more power? You definitely have a sickness... I think you should just find a roller somewhere and start a GT tribute build (IMG:style_emoticons/default/wink.gif) (by the way, I'm quite jealous!) Haha, no time for a second 914. This one is great because I can drive it and have fun while I prepare the second engine. |
Optimusglen |
Jul 6 2017, 07:09 PM
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#33
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Senior Member Group: Members Posts: 901 Joined: 26-February 16 From: Minneapolis Member No.: 19,709 Region Association: Upper MidWest |
I'd seriously take Ben up on his offer, the proper tank is a way better solution on a /6 conversion. On the engine case I'm also in the camp of a full teardown, you wouldn't build a new house on an old crumbing foundation. At minimum I'd get the case case savered, not timeserts, proper casesavers. Yes. I had planned a full teardown before I even purchased the engine. On the 4 cyl I only brought it down to the shortblock because, well, it's a 4. A 1.7 4 at that. On the tank front there's also some news. Not sure if I mentioned it but I have access to an end mill, lathe, and pretty much entire machine shop (CNC is off limits). I made an offer on one of those Vellios "kits" on eBay, unfinished 2 halves of a tank. Need final machining and welding. Both areas I'm capable in. So I jumped on it, hard to go wrong for about $150. I will drill and tap for AN fittings. From my research the main complaints on the Vellios tanks are weight, poor welds, poor machining, and porous metal. I can knock all of those out but one and a few extra pounds are fine by me for a sub-$200 tank. |
Larmo63 |
Jul 6 2017, 09:10 PM
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#34
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Advanced Member Group: Members Posts: 4,264 Joined: 3-March 14 From: San Clemente, Ca Member No.: 17,068 Region Association: Southern California |
I doubt if I will do Carrera tensioners.
Slippery slope........ (IMG:style_emoticons/default/beerchug.gif) |
GeorgeRud |
Jul 6 2017, 09:22 PM
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#35
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Advanced Member Group: Members Posts: 3,725 Joined: 27-July 05 From: Chicagoland Member No.: 4,482 Region Association: Upper MidWest |
I'd at least recommend using some tensioner collars (guards) if not going with the pressure fed tensioners. It is easy to be tempted by the 'while I'm in there' disease to continue with modifications.
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Optimusglen |
Jul 7 2017, 07:49 AM
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#36
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Senior Member Group: Members Posts: 901 Joined: 26-February 16 From: Minneapolis Member No.: 19,709 Region Association: Upper MidWest |
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Mark Henry |
Jul 7 2017, 08:28 AM
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#37
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
I'd at least recommend using some tensioner collars (guards) if not going with the pressure fed tensioners. It is easy to be tempted by the 'while I'm in there' disease to continue with modifications. Just be aware that the collars can also fail. I'd recommend rebuilding the mechanical tensioners, you can get the kits for this. Once done you have to bleed them to fill with them with oil. If they are rattling don't depend on the collars, they're only a temporary safety device, service right away. |
Mark Henry |
Jul 7 2017, 08:34 AM
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#38
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
BTW and just an FYI Ben would have given you a better deal on the tank than the ebay guy.
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mb911 |
Jul 7 2017, 08:52 AM
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#39
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914 Guru Group: Members Posts: 6,818 Joined: 2-January 09 From: Burlington wi Member No.: 9,892 Region Association: Upper MidWest |
BTW and just an FYI Ben would have given you a better deal on the tank than the ebay guy. And was willing to barter. Oh well. Glen I currently have one of the vellios tanks that I bought in halves.. It is not as simple as just mill,drill and weld.. The screen, plumbing has to be done or you destroy an engine in short order. I look forward to seeing the conversion progressing. |
mb911 |
Jul 7 2017, 08:53 AM
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#40
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914 Guru Group: Members Posts: 6,818 Joined: 2-January 09 From: Burlington wi Member No.: 9,892 Region Association: Upper MidWest |
I doubt if I will do Carrera tensioners. Slippery slope........ (IMG:style_emoticons/default/beerchug.gif) And at 800 for a kit crazy money. |
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