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Post by roger on Jan 11, 2016 15:37:59 GMT -9
Update on Slick Mags I put Slick Start on the right engine of one our Chieftains and it made a huge difference, especially on hot starts. If you are going to use this system on a twin, Champion requires a slick start on each engine rather than just installing one in place of the Bendix vibrator. This is because the unit draws more current than the starter toggle switch in the Navajo can handle. I mounted ours just behind the firewall on the inboard part of the nacalle on the right engine. When I do the left engine I'll most likely mount it on the outboard side of the nacelle. I picked the power up off the starter terminal. The instruction say to get the power off the starter side of the starter solenoid as close as practical to the solenoid. Since the unit operates on either 12 or 24 volts it seems to me that the voltage at the starter is still more than sufficient. This makes the installation much simpler than running wiring from the starter solenoids. Took about 1.5 hours total Yeah, like I said the slick starts are great. If you end up with oddball left magneto problems down the road (bad mag checks/engine surging due to intermittent mag) don't forget that slick start as a possible source. I've seen 3 of them go bad on Cherokees and they can drive you nuts. |
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Post by roger on Oct 18, 2016 14:11:34 GMT -9
Just an update, had another TCM1200 mag blow the distributor block (86 hours since 500 hour inspection with new distributor block) today, talked to TCM and they said that early last year they reformulated the material and changed the vendor of that part to try to fix the problem, we'll see how it goes, I've heard this sort of thing from manufacturers before. At least this time they admitted that THEY might have a problem instead of trying to blame it on Lycoming, propeller balance, or not replacing drive rubbers.
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Post by Tim Glubaskas on Oct 25, 2016 6:15:46 GMT -9
We've got slicks on 10 engines now and they are running great so far....
Sorry to hear about your issues
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Post by roger on Aug 17, 2017 7:05:35 GMT -9
Update on Slick Mags I put Slick Start on the right engine of one our Chieftains and it made a huge difference, especially on hot starts. If you are going to use this system on a twin, Champion requires a slick start on each engine rather than just installing one in place of the Bendix vibrator. This is because the unit draws more current than the starter toggle switch in the Navajo can handle. I mounted ours just behind the firewall on the inboard part of the nacalle on the right engine. When I do the left engine I'll most likely mount it on the outboard side of the nacelle. I picked the power up off the starter terminal. The instruction say to get the power off the starter side of the starter solenoid as close as practical to the solenoid. Since the unit operates on either 12 or 24 volts it seems to me that the voltage at the starter is still more than sufficient. This makes the installation much simpler than running wiring from the starter solenoids. Took about 1.5 hours total Thought I'd come back to this one with something interesting we found. Turns out our LH engine hard starting repeated issues weren't Slick related, we had a bad pin in a molex in the wing leading edge wiring for the starter vibrator. One of my guys finally traced it down last fall. |
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Post by anatole on Sept 11, 2018 11:52:50 GMT -9
We also have J2B's with Bendix 1200 mags. I noticed these are not pressurised, however doing a cursory internet search it turns out the 1200 series is certified to 25,000ft without pressurisation! Could this be right?
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Post by Tim Glubaskas on Sept 13, 2018 10:35:15 GMT -9
Yep - we were surprised by this also - pretty cool
We did change over to the slicks and that has worked well for us but you do have to add some plumbing and a valve.
t
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Post by anatole on Sept 23, 2018 0:24:11 GMT -9
Yeah I was impressed!
What was the issue with Bendix 1200s that warrants the change to Slicks?
On another note, it is of interest that when going to two single magnetos the dynamic timing actually advances.
That is, there is more delay in the spark event through the dual mags on the J2BD.
This means that you'll notice a drop in EGT when going to the separate magnetos even though both are statically timed to 20°BTDC.
This is not necessarily good in these engines! They are already highly strung at full power, so even a small advance increases the peak internal cylinder pressure even further. If you are already doing silly things like leaning as per the AFM's climb leaning chart then you could be asking for trouble.
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Post by Tim Glubaskas on Sept 25, 2018 7:56:28 GMT -9
For us we went to the slicks mags to cut down on maintenance requirements - we replace and send out at 500hrs.
Doing the 500hr in-house on the dual mags was a chore and the shower of sparks was notoriously finicky for us -
They were also beginning to show their age - Lycoming is converting the J2BD to J2B for basically free so we jumped on the bandwagon during overhaul
Along with the slick start, the slick mags have been fairly bulletproof for us.
Planes start A LOT quicker and easier now - usually within like one rotation of the prop....
No more turning over and over again
In the past the slicks had a bad rep but I think they have come a long way since then - we currently have 25 engines with them on (and 10 planes equipped with the slickstarts)
t
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Post by hl2024 on Jan 12, 2021 16:45:26 GMT -9
know how to replacement for engine oil cap seal? (ex. chapter XX, and MM Page) ![]() Attachments:
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Post by klausnw on Jan 12, 2021 17:24:11 GMT -9
That illustration is a little deceiving.
The "O"-Ring just goes on the dipstick at the top of the threads or the grove if the other dipstick style. Once put on the dipstick it just stays there until the next time it's changed.
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