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Registered
Join Date: Jan 2002
Location: Sydney, NSW, Australia
Posts: 1,520
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No rev limiter?
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10-09-2010, 09:10 PM
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Petie3rd
Join Date: Jul 2000
Location: Philly PA
Posts: 4,528
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broken or jammed cam timing gear
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^^^ Stan ^^^ 2019 BMW K1250 GS 2016 HD RK 1988 S4 Auto , Elfenbein Perlglanz, Pearl Gray 1982 5sp Met black and tan sport seats |
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10-10-2010, 04:58 AM
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abit off center
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Will know the answer in just a bit!
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______________________ Craig G2Performance Twinplug, head work, case savers, rockers arms, etc. |
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10-10-2010, 09:01 AM
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Puny Bird
Join Date: Nov 2002
Location: Port Hope (near Toronto) On, Canada
Posts: 4,566
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Since no one said it my guess is a broke crank.
Crap shoot... valve seat, piston, rod, crank...could be any one.
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'74 Porsche 914, 3.0/6 '72 Porsche 914, 1.7, wife's summer DD '67 Bug, 2600cc T4,'67 Bus, 2.0 T1 Not putting miles on your car is like not having sex with your girlfriend, so she'll be more desirable to her next boyfriend. |
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10-10-2010, 09:34 AM
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Broken water pump?
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Jacksonville. Florida https://www.flickr.com/photos/ury914/ |
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10-10-2010, 09:37 AM
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abit off center
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got the cylinders off and pistons out flywheel off: No loose rods, bolts or broken pistons, no broke crank, no broke camshaft or cracked lifters. Everything is free except it still hits a stop. Next is to split the case......This is getting very interesting! must be something up front around the cam gear? but it looks ok down the fuel pump hole and dizzy hole!
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______________________ Craig G2Performance Twinplug, head work, case savers, rockers arms, etc. |
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10-10-2010, 10:06 AM
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Puny Bird
Join Date: Nov 2002
Location: Port Hope (near Toronto) On, Canada
Posts: 4,566
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Quote:
Push the pulley all the way in and see if it rotates, pushing the whole time. Or the camshaft is broke right at the gear.
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'74 Porsche 914, 3.0/6 '72 Porsche 914, 1.7, wife's summer DD '67 Bug, 2600cc T4,'67 Bus, 2.0 T1 Not putting miles on your car is like not having sex with your girlfriend, so she'll be more desirable to her next boyfriend. Last edited by Mark Henry; 10-10-2010 at 10:20 AM.. |
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10-10-2010, 10:13 AM
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abit off center
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Well the rear main bearing seized up and spun on the locating pin that's why it ran when I drove it home when hot but locked up when it cooled down. It could have been too that I had the crank endplay on the tight side, I set it at .004 but as you can see the shims are in bad shape too. The case is fine, the bearing did not spin in the case so that's good. Just going to have the mains turned down 1st under and go from there. Oh and pull the heads apart to check them out too.
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______________________ Craig G2Performance Twinplug, head work, case savers, rockers arms, etc. |
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10-10-2010, 11:13 AM
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Puny Bird
Join Date: Nov 2002
Location: Port Hope (near Toronto) On, Canada
Posts: 4,566
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I'm betting there's more damage.
Put the pin in the case, it should have no slop. Compare to the others, if sloppy it must be repaired and line bored. Check the case webs, thrust and bores. Mag case so same issues as a 911 case. Play is .003 to .005, (.006 is the wear limit). I set all the engines I've built at .003 without a single failure. Rods off the crank hit it with a hammer and see if it rings. I'd still have it magnafluxed.
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'74 Porsche 914, 3.0/6 '72 Porsche 914, 1.7, wife's summer DD '67 Bug, 2600cc T4,'67 Bus, 2.0 T1 Not putting miles on your car is like not having sex with your girlfriend, so she'll be more desirable to her next boyfriend. |
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10-10-2010, 11:45 AM
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Registered
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See, I told you that was it....
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Jacksonville. Florida https://www.flickr.com/photos/ury914/ |
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10-10-2010, 01:36 PM
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abit off center
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Everything was fine except the rear main on the crank so I ground it down .010 and ordered a set of 10 under main bearings. I did also check the heads over and everything was fine but did surface the sealing surfaces because I did have problems with that before and did not surface them last time. Parts are ordered and will be back in the car in about a week.
 
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______________________ Craig G2Performance Twinplug, head work, case savers, rockers arms, etc. |
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10-20-2010, 03:28 PM
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abit off center
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All back in the car and running well, Just in time to tuck it away for the winter :-( and this was my first iphone vid upload just to see how it worked!
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______________________ Craig G2Performance Twinplug, head work, case savers, rockers arms, etc. |
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11-07-2010, 09:53 AM
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Registered
Join Date: Jul 2008
Location: OK
Posts: 12,730
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Sounds good!!!
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76' 911s Signature Edition |
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11-07-2010, 04:14 PM
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A Man of Wealth and Taste
Join Date: Dec 2002
Location: Out there somewhere beyond the doors of perception
Posts: 51,063
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It became a legendary ROCK STAR BAND
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Copyright "Some Observer" |
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11-07-2010, 04:18 PM
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Registered
Join Date: Jan 2007
Posts: 11,758
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The Mouse that Roared.
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11-07-2010, 04:38 PM
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Great job!
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A nose heavy airplane flies poorly, a tail heavy plane flies once. |
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11-07-2010, 09:33 PM
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abit off center
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1000 miles and not a drop of oil, not bad for an old mag case but then I used plenty of 3bond sealer
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______________________ Craig G2Performance Twinplug, head work, case savers, rockers arms, etc. |
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11-21-2010, 10:55 AM
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1969 and 1986 Porsche Targa and Coupe 1720cc and 3
1973 Porsche 914 1.7 very modifed
1979 Porsche 911SC
