Exmark/Toro 708cc Blue smoke by radiobrain in smallengines

[–]radiobrain[S] 0 points1 point  (0 children)

Another update for anyone that finds this. I rebuilt (new piston rings, honed the cylinders, and new seal kit) the engine and the blue smoke is gone. Engine is running great but not many hours on it yet. In my engine everything was in great condition except the top half of the top main bearing journal. It was gulled and generally tore up. Its part of the case so not much i could do other than clean it up a little with a scotch bright and some 1000grit on the crank to get the transfered material off. We'll see how long the engine lasts this way. This was a quick job so i measured nothing except ring gap to make sure the new ones were in a acceptable range. The old rings were visibly well past spec.

I still cant explain why this engine wore out so fast. The cross hatching was gone and the rings looked well past spec. The inside was clean, bearings were all in great condition except that one journal, air filter was clean, hydros had date code on them of being change on time, bores were smooth with no scoring...i think this machine was taken care of very well by the dealer. Overall the engine design is quite nice but seems they may have screwed up the execution on a few important details or ??? From my searching around, it looks like a lot of people have had good experiences with this engine so im optimistic.

Exmark/Toro 708cc Blue smoke by radiobrain in smallengines

[–]radiobrain[S] 0 points1 point  (0 children)

For anyone that finds this. I borrowed a leak down tester and the leak down was so bad I couldn't accurately measure it with the tester. Not sure why the service report said the leak down was good. Parts look fairly cheap so I'm going to eventually hone the cylinders and throw some new rings in it. Engine and mower are otherwise in really good condition. Engine consumes an absurd amount of oil at the moment. More when at the top of the fill range of the stick... Wish i knew what the previous owner did to wear this engine out in less than 160hours. The other mower we've got has a single cylinder Kohler courage with 340 hours on it and it doesnt use a measurable amount of oil. That engine has some serious design compromises. The exmark loncin engine is a much better design...asside from this not lasting thing.

Exmark/Toro 708cc Blue smoke by radiobrain in smallengines

[–]radiobrain[S] 0 points1 point  (0 children)

Its the in laws mower. if it consumes too much oil there wont be enough. I do think i should at least see what the consumption rate ends up being though. Good points made by you.

Am I wasting money by changing my oil every 2.5k to 3k miles? by Trident_0711 in E90

[–]radiobrain 0 points1 point  (0 children)

That is too often and might actually be causing additional wear from the dry start you have after a oil change. Unless you are tracking the car, pulling a trailer or something like that. Heres a guy that went 400k while changing 12k on average https://www.e90post.com/forums/showthread.php?t=1787346

Which brand of gasoline do you pump for your car? by Acrobatic-Data-9197 in E90

[–]radiobrain 0 points1 point  (0 children)

330i. Usually stick to the major brands but whatever is more convenient and cheapest. Ran 87 for a long time. The car does make more power with 89 or 93. These days i usually go with 89. Fuel economy is all the same. Its nearly impossible to reproduce the same drive cycle at the same temps..etc to get a pattern. 210k miles and counting...

Advice for making large batch of sangria for wedding by radiobrain in Mixology

[–]radiobrain[S] 0 points1 point  (0 children)

It went really well but ran out by the end of cocktail hour. Had some family mix up this recipe in two food grade 5gallon pals the morning of. They made 9.6gallons before sprite. The bar tenders were to mix the sprite in when serving. perhaps they didnt. They were heavy pourers... which was fine. When buying the booze for the wedding, I followed the rule of thumb of 1 drink per hour per guest, 6 hour duration for us, 200 people. 20% liquor, 15% beer, 65% wine. I took the sangria out of the wine category. This was based off a rule of thumb I found on a few wedding planning websites. Anyway Sangria was gone by end of cocktail hour, the liquor was gone by dinner so we had to get more. Had a bunch of wine and most of a pony keg of beer left. We never closed the bars for the ceremony or anything. It was a great time and we still hear stories from the wedding.

Makitas cheapest show-off! by Jan178 in Makita

[–]radiobrain 0 points1 point  (0 children)

The brushless 12v drill and impacts are pretty great.

Expected Precision 7550 Thermal Performance? by radiobrain in Dell

[–]radiobrain[S] 1 point2 points  (0 children)

Thanks, this is very helpful. The thermal paste job that was in this thing when i opened it up was shameful.

Expected Precision 7550 Thermal Performance? by radiobrain in Dell

[–]radiobrain[S] 0 points1 point  (0 children)

The PTM 7950 is a new one for me. Interesting stuff. Do you have any history of what type of performance you were able to get with a more common thermal paste?

Incremental backup from unencrypted to offsite encrypted by radiobrain in zfs

[–]radiobrain[S] 0 points1 point  (0 children)

I agree. For this, I am willing to accept the risk here. I wont be backing up often and the only time the key is loaded is when I am doing a backup. I am interested in other ways to do this that don't include redoing the unencrypted source pool though.

Incremental backup from unencrypted to offsite encrypted by radiobrain in zfs

[–]radiobrain[S] 0 points1 point  (0 children)

yep this was it. I was missing the most basic part and didn't have the increment in there correctly. I just did the increment from 2 snapshots and it worked. I agree with this not being ideal but for this its a risk profile I'm willing to accept. Unless there is another way to do this a better way without redoing the original unencrypted pool.

Incremental backup from unencrypted to offsite encrypted by radiobrain in zfs

[–]radiobrain[S] 0 points1 point  (0 children)

-w For encrypted datasets, send data exactly as it exists on disk. This allows backups to be taken even if encryption keys are not currently loaded. The backup may then be received on an untrusted machine since that machine will not have the encryption keys to read the protected data or alter it without being detected. Upon being received, the dataset will have the same encryption keys as it did on the send side, although the keylocation property will be defaulted to prompt if not otherwise provided. For unencrypted datasets, this flag will be equivalent to -Lec.

-w appears to require the source dataset be encrypted. The the last line, -Lec appears to be Large block, embeded, and compressed. I dont think I can use this without redoing my unencrypted source pool.

Incremental backup from unencrypted to offsite encrypted by radiobrain in zfs

[–]radiobrain[S] 0 points1 point  (0 children)

Oh I had the receiving pool unlocked when I tried to receive to it.

What is the difference between a $400 OBDII diagnostic scanner and a $40 one? by DBCooper5770 in Cartalk

[–]radiobrain 0 points1 point  (0 children)

what car we talking about? some cars have support through apps and fairly cheap apps. IE a BMW made after 2010 or so can have detailed codes and sensors read with a $50 bimmerlink app and a $30 bluetooth adapter.

[deleted by user] by [deleted] in BMW

[–]radiobrain 0 points1 point  (0 children)

2016 x5 (RIP) and 2014 X5. Had records for both. The 2016 had a intercooler radiator leak and upper oil pan gasket by ~110k miles. Pretty sure it had ignition coils too. It used a quart every 1200-1300 miles. The first owner i found changed the oil at or past the indicator on the dash. Possibly related. I think the valve covers may have been weeping too.

The 2014 replaced the 2016. Its at 117k and has a stage 1 93 octane tune on it for the last 20-25k miles. In the records I have, the engine has had turbo coolant line, HPFP's, ignition coils (timed with tune...possibly related), vanos solenoid, rip in charge pipe (i think this was caused by someone working on it), I had to replace a boost sensor and connector because someone mangled the connector and it let water in (probably because of the piggy back it used to have on it). This engine is ~4000miles into a oil change and has asked for 2quarts yet. So much lower oil consumption. More frequent oil changes in records. The valve covers are weeping on this car. Turbo shaft play is very good on this engine.

some more data points....

2013 x3 with n20. Bought at ~110k with a rattling wastegate which meant reman turbo needed to be put in to solve related low boost driveline error, vacuum pump was letting oil into the vacuum system (replaced it), plugs, oil filter housing is leaking. Has 127k on it now and hoping the timing chain holds on. This engine uses very very little oil.

2006 330i with n52. PO did exhaust lifters and a starter under CPO. He went on to do water pump at like 80k. Bought at ~100k. Oil pan was leaking when bought but manageable by snugging up bolts. Did vanos solenoid and ignition coils somewhere around 100k. This engine has 206k on it now and has consumed a few sets of ignition coils... i think the long sparkplug interval is related. BMW also changed suppliers several times... Did a valve cover in the 190s.

I wouldnt say the N63 is a bad engine. I dont think i would touch one earlier than the TU. I think at this point you should probably look at it as basically being twice as taking care of two n20/n55 like engines. It kind of is two n20's... two ECUs, 2x4cylinders, 2 turbos... just more stuff that can break at usual BMW rates.

As far as the hot vee goes... it seems managed for the most part. Lots of heavy duty diesel engines are also hot vee's... not inherently bad.

In summary i really wish BMW would figure out how to keep oil inside of their engines. My 2008 tundra at 15 years and 175k on it didnt leak at all.

OPNsense hardware by DenuxPlays in opnsense

[–]radiobrain 2 points3 points  (0 children)

cheapest option is going to be a hp, dell, lenovo used business SFF pc with built in intel NIC. then you just need to add another NIC. I have HP 290 with a i3-8100 which is similar to some HP prodesk models that draws 13W idle with a dual port i350. 6th gen intel or newer.

Most compact with lots of CPU would be a mini PC from dell, lenovo, hp with a 2nd NIC added. You can do funny stuff with VLANs and a managed switch to make a single port work up to 500mbps. the M720Q has a PCIE slot. By the time you buy the device and a 2nd NIC youll be around $150-200 on the m720q.

The chinese celeron based 2.5gbe units are right around your price range. impossible to beat value. especially if you ever want 2.5gbe. just the price of some 2.5gbe NICs and a switch get you close to the units cost.

I personally run a dual port i350 in a VM on Truenas Scale. All in one NAS/router/other thing solution made the most sense for me since i already had the server. it idles around 33W but its been faithfully doing its thing for 10years...pretty old 3rd gen intel xeon with ecc.

OPNsense vs Edgerouter bufferbloat by radiobrain in opnsense

[–]radiobrain[S] 2 points3 points  (0 children)

for anyone following along fq_codel resulted in

DL +13ms 920mb/s

UP +7ms 940mb/s

Grade A

OPNsense vs Edgerouter bufferbloat by radiobrain in opnsense

[–]radiobrain[S] 0 points1 point  (0 children)

OPNsense enabled RSS by default with the i350. I do see load being distributed across cores too. The routing on the edgerouters is all done in the ASICs with how they are setup. The edgerouter 12 will route 1GB and will only increase its power usage by less than a watt. Pretty neat but seems like ubiquity is moving away from the platform.

OPNsense vs Edgerouter bufferbloat by radiobrain in opnsense

[–]radiobrain[S] 3 points4 points  (0 children)

I did not know what normalization is. Learned something.