Alex - I'll take 914 6 ring gear damage for $1000, "what do High Torque starters do" |
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Alex - I'll take 914 6 ring gear damage for $1000, "what do High Torque starters do" |
BKLA |
Aug 16 2007, 09:19 AM
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Really old member Group: Members Posts: 1,253 Joined: 14-August 05 From: OR Member No.: 4,590 Region Association: Pacific Northwest |
Unfortunately, "BluByU" sits most of the time at the CAMP, waiting to be driven. Last month, my son and I enjoyed a drive that took us out to the Portland historic races. We enjoyed the day and the track and left around 3:00 in order to make it back to my other son's soccer tournament. The six started and ran normally both two and from the race. Parked it at home and drove with the family to the game.
After family duties, when to start the six and....zzzzzzKKKK - no engagement. put the car in gear and rocked it back and forth. Tried again. This time engagement but loud clunk each rotation. ( the starter was relatively new so I thought maybe it was loose.) Drove up to the CAMP and parked it. Climbed under to see if the starter was "loose" - nope. Put the car cover on it and suspected a broken tooth on the ring gear. Called my trusty local independent Porsche mechanic and asked. Tried starting again same loud clunk - figured that it must have broken a couple of teeth. Anyway, had him check it and sure enough - broke 5 teeth in a row. Now here's the rub - He installed a new flywheel and a new starter (Bosch). THe six now starts sooo much quieter and faster than it ever did with the "high Torque" one. He told me that the high torque starters work great on high compression engines, but that he recommends the bosch starters for anything stock as they don't damage the ring gear. Now, the flywheel looks great and I understand that it can be machined and have a new ring gear welded on. (I saved it as well as the relatively new starter.) I have seen a number of flywheels with removable or replaceable ring gears and have been considering one for the new race 2.7 I have for "other" 914. Would it be worth it to have it machined for a replaceable ring gear as well as lightened and balanced? I would keep it as a back up for my 2.7 race motor -or- use it on the race motor. Waddya think? |
sixnotfour |
Nov 8 2012, 11:13 AM
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914 Wizard Group: Members Posts: 10,525 Joined: 12-September 04 From: Life Elevated..planet UT. Member No.: 2,744 Region Association: Rocky Mountains |
tell em you need a 12 volt bug ring gear, I got 4 from them last year no problem.
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larryM |
Nov 8 2012, 05:50 PM
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emoze Group: Members Posts: 891 Joined: 1-January 03 From: mid- California Member No.: 65 Region Association: Northern California |
(IMG:style_emoticons/default/cheer.gif) RIMCO VW does it all - $130 includes the new ring, plus ship RIMCO just put in a box & follow the instructions on their site tell em you need a 12 volt bug ring gear, I got 4 from them last year no problem. aha! - love this site - somebody always has the answer for future reference see this "You can have the flywheel ring gear replaced by experienced machine shops such as Rimco or Competition Engineering or others, and then have them re-balance it and the clutch. .... They will maching off the old gear, and heat the new ring gear and press it on the flywheel, and spot weld it into place, locking it down. " ring gear damage and on eBay - search for ATP ZA-550 Flywheel Ring Gear also see ring gear "912 and post-'67 VW utilize a 130 tooth ring gear resulting in a larger ring diameter. The dimension between the starter axis and flywheel axis is identical for all VW and pre-'89 Porsche. This means that the starter gear diameter must be different for 911" . (IMG:style_emoticons/default/biggrin.gif) |
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