|
Friend said they rebuilt their engine and it knocked horribly after assembly. Took it apart to find this:   Guess he dropped that into the intake. Dumbass.
|
#
?
Sep 17, 2018 16:11
|
|
|
|
| # ? Jun 11, 2024 01:10 |
|
|
A lock washer? Ouch.
|
|
#
?
Sep 17, 2018 16:13
|
|
|
I call bullshit on just rebuilt. That headgasket looks like it has tens of thousands of miles on it and the water passages are full of what looks like dexkill mixed with green coolant. Maybe they just did a piss-poor job at cleaning the block surface and didn't give a gently caress about cleaning up the crud in the coolant passages? I mean, I guess I wouldn't doubt that given the inattention to leaving parts in the engine... Replacing a headgasket doesn't mean rebuilding.... chrisgt fucked around with this message at 16:25 on Sep 17, 2018 |
|
#
?
Sep 17, 2018 16:23
|
|
|
Honest to god question...does GM still use Dexcool?
|
|
#
?
Sep 17, 2018 16:55
|
|
C-Bangin' it 
|
Nice craigslist rebuild.
|
|
#
?
Sep 17, 2018 17:01
|
|
|
Colostomy Bag posted:Honest to god question...does GM still use Dexcool? They do. The real problem with Dexcool wasn't exactly the antifreeze itself...it was the gaskets that weren't designed for it. One of the anti-corrosion additives reacted with certain rubber/plastic materials. Also, people mixing it with "old" green antifreeze. Lots of companies use virtually identical antifreeze...it's just an OAT formula. Also, coolant colors no longer mean a goddamn thing.
|
|
#
?
Sep 17, 2018 18:23
|
|
|
STR posted:Yuuuup. Never seen a 96-00 Civic tach hit its mechanical limit before. It was running a stock B16 ECU, so fuel cut at 8200rpm. It's a JDM ITR gearbox so 2nd is 2.105 and 3rd is 1.458. My gearing spreadsheet says it would be around 11800rpm, but I don't think it actually spun that high or the motor would have just grenaded instantly. It made about 2 more laps before the power delivery started getting flat. It was an original B17 with an untouched bottom end that did many years of racing in another car, so it wasn't unexpected. Just annoying because it only needed to make 2 more weekends. The wonderful thing about racing a honda is you can just amass a collection of spare motors for almost no money. I think we'll have a replacement motor ready for the next race in 3 weeks.
|
|
#
?
Sep 17, 2018 18:41
|
|
|
I am tangentially aware of an instance where a car made a shift down from the top of 5th to 1st almost instantaneously, which span the engine up (briefly) in excess of 12k RPM. It turns out the mechanical fuse in that motor was the crankshaft, which neatly divided itself into two.
|
|
#
?
Sep 17, 2018 18:47
|
|
|
jammyozzy posted:I am tangentially aware of an instance where a car made a shift down from the top of 5th to 1st almost instantaneously, which span the engine up (briefly) in excess of 12k RPM. Jesus, was it an oldschool I8 or something? I've heard of journal bearing failures or warping cranks on V10/V12 engines, but never an actual shear
|
|
#
?
Sep 17, 2018 19:01
|
|
|
The Door Frame posted:Jesus, was it an oldschool I8 or something? I've heard of journal bearing failures or warping cranks on V10/V12 engines, but never an actual shear Nope, it was a thoroughly modern race motor. I can't really say any more without giving the game away so I'll stop now, but I am surprised as you about which part came off worst.
|
|
#
?
Sep 17, 2018 19:30
|
|
|
jammyozzy posted:Nope, it was a thoroughly modern race motor. I can't really say any more without giving the game away so I'll stop now, but I am surprised as you about which part came off worst. Sounds like a E36 M3. edit: should add, spoilers and stuff in the trunk. But it suffered badly from a downshift problem. Colostomy Bag fucked around with this message at 19:43 on Sep 17, 2018 |
|
#
?
Sep 17, 2018 19:40
|
|
|
Blue Footed Booby posted:As a war nerd, the video set up expectations that were not met. A failure in a similar vein      http://www.daveswarbirds.com/b-17/tail3.htm
|
|
#
?
Sep 18, 2018 02:28
|
|
|
|
|
#
?
Sep 18, 2018 02:43
|
|
|
Didn't know Edsel made planes.
|
|
#
?
Sep 18, 2018 02:44
|
|
|
Horseshoe is upside‐down. All the luck fell out.
|
|
#
?
Sep 18, 2018 02:49
|
|
|
chrisgt posted:I call bullshit on just rebuilt. That headgasket looks like it has tens of thousands of miles on it and the water passages are full of what looks like dexkill mixed with green coolant. "rebuilt" by two friends of a friend who didn't know what they were doing. I suspect they did headgasket and heads. The coolant passages look like poo poo because they left water in it for a year and stored it outside. We got it for free and took it apart to see what they screwed up/scrap it.
|
|
#
?
Sep 18, 2018 03:09
|
|
|
I'm guessing there was no cross wind when this plane was landed.
|
|
#
?
Sep 18, 2018 03:22
|
|
|
Cojawfee posted:I'm guessing there was no cross wind when this plane was landed. That looks like a Lancaster, in which case the rudders are at the outer edge of the horizontal stabilizers. The missing part is the entire rear turret compartment. loving RIP that dude.
|
|
#
?
Sep 18, 2018 03:51
|
|
|
Crustashio posted:It was running a stock B16 ECU, so fuel cut at 8200rpm. It's a JDM ITR gearbox so 2nd is 2.105 and 3rd is 1.458. My gearing spreadsheet says it would be around 11800rpm, but I don't think it actually spun that high or the motor would have just grenaded instantly. It made about 2 more laps before the power delivery started getting flat. So I was pretty close on the RPM guess.  It's very possible it really did spin that high; the B16 and B17 bottom ends could take some serious poo poo without instantly blowing up. It had to have hit at least 10k going by the tach.The B17 is pretty rare though. At least in the US, it only came in the 92-93 Integra GSR. Honda legos are fun though, I wouldn't mind owning another DA Integra or EG/EJ Civic. I had a lot of fun with both cars, even though they only got bolt ons. What motor will go in next? B16 or B18? I'll be pretty impressed if you say you have another B17 sitting around, most of them got blown up ages ago. Even 10+ years ago when I was into Integras, most of the 2nd gen GSRs I saw had B18 swaps (usually because of theft). Speaking of, I saw a (visibly) unmolested 2nd gen GSR the other day. It's rare as hell to see a 2nd gen Integra in general these days, much more rare to see the 2nd gen GSR. And a stock one is a loving unicorn today. 
|
|
#
?
Sep 18, 2018 06:13
|
|
|
Terrible Robot posted:That looks like a Lancaster, in which case the rudders are at the outer edge of the horizontal stabilizers. The missing part is the entire rear turret compartment. loving RIP that dude. Yep. This was also from falling bombs from friendly planes, and it’s not the only photo of a Lancaster like this I have seen. They bombed at night so I wonder how often this sort of thing happened.
|
|
#
?
Sep 18, 2018 06:34
|
|
|
Godholio posted:They do. Its insanely useful for communitating with dumbass customers. "No, you can't just use green. If you mix green and gold/red/blue/orange you get brown sludge and thats bad."
|
|
#
?
Sep 18, 2018 07:59
|
|
|
Except there are several greens, at least two reds, various shades of orange, at least one purple, and god knows what else. My '12 Jeep came from the factory with pink coolant. The dealer will top it (correctly) with bright orange. The Zerex I use at home is yellow-orange. The '13 Jeeps came with purple, and the dealer will (correctly) use bright red. Old green mixed with either of these is a disaster. New green...it depends who makes it. The colors only matter to the manufacturer. There are no industry standards for this, which is ridiculous.
|
|
#
?
Sep 18, 2018 08:03
|
|
|
If you can't afford the purple, just mix red with windshield washer fluid.
|
|
#
?
Sep 18, 2018 08:06
|
|
|
Godholio posted:Except there are several greens, at least two reds, various shades of orange, at least one purple, and god knows what else. Yeah, there are issues with overlap in color. But still it helps keep idiots from mixing stuff that shouldn't be mixed.
|
|
#
?
Sep 18, 2018 08:16
|
|
|
Powershift posted:If you can't afford the purple, just mix red with windshield washer fluid. After a radiator swap I topped off the fill tank with washer fluid. Fortunately I caught it but boy oh boy, was that a dumbass on me moment. My defense is both are simple flaps and next to each other. Apparently I can't understand pictographs.
|
|
#
?
Sep 18, 2018 12:02
|
|
|
Elmnt80 posted:Yeah, there are issues with overlap in color. But still it helps keep idiots from mixing stuff that shouldn't be mixed. Which I always got a chuckle with the green stuff now..."can mix with everything."
|
|
#
?
Sep 18, 2018 12:03
|
|
|
STR posted:So I was pretty close on the RPM guess. What up NE dallas bro. Used to be my old hood. Had a friend with a Type-R back in the day and it was so fun, always wanted one.
|
|
#
?
Sep 18, 2018 13:02
|
|
|
AMISH FRIED PIES posted:Didn't know Edsel made planes. 
|
|
#
?
Sep 18, 2018 16:44
|
|
|
STR posted:So I was pretty close on the RPM guess. Nice. My DA is on it’s way out, it’s gonna be a chump car next year most likely. I’ve noticed in the last 3 years their numbers have thinned considerably.
|
|
#
?
Sep 18, 2018 21:46
|
|
|
A group I admin on Facebook has all sorts of really cool drivers from all walks of racing on it. Michael Dalton, a builder for the Flashpoint streamliner, posted this recently.     And the remains of the tire: 
|
|
#
?
Sep 18, 2018 22:13
|
|
|
um excuse me posted:A group I admin on Facebook has all sorts of really cool drivers from all walks of racing on it. Michael Dalton, a builder for the Flashpoint streamliner, posted this recently. Wow. Right thread for the tire but entirely wrong for whatever kind of cage/safety system they have for the driver. 427 mph, over a mile and dude is fine.
|
|
#
?
Sep 18, 2018 22:36
|
|
|
builds character posted:Wow. Right thread for the tire but entirely wrong for whatever kind of cage/safety system they have for the driver. 427 mph, over a mile and dude is fine. Exactly what I was thinking. That's a mechanical success, right there.
|
|
#
?
Sep 18, 2018 23:04
|
|
|
Rub that story in the face of anyone who says safety regulations ruin racing.
|
|
#
?
Sep 18, 2018 23:31
|
|
|
Frond posted:Nice. My DA is on it’s way out, it’s gonna be a chump car next year most likely. I’ve noticed in the last 3 years their numbers have thinned considerably. Nice, but now it is Champ Car. (and yeah, I still go with chump)
|
|
#
?
Sep 18, 2018 23:45
|
|
|
ExplodingSims posted:Rub that story in the face of anyone who says safety regulations ruin racing. What do you think made the tire blow up in the first place? CHECKMATE
|
|
#
?
Sep 19, 2018 00:04
|
|
|
Is cutting a hole in the bellhousing a mechanical failure? Honestly I just want to post this video: https://www.youtube.com/watch?v=DIlCxj3-LhU
|
|
#
?
Sep 19, 2018 00:13
|
|
|
STR posted:So I was pretty close on the RPM guess. Definitely don't have another B17. It actually had a B18 for the first few races this year, but it was overheating and down 50psi on 2 and 3 so we pulled it. Found valve contact marks on every cylinder but no bent valves so our guess is a PO overrevved it and slapped on a new head. Immediate plan is to assemble a B16 since we have 2 complete bottom ends and a collection of heads. I will eventually assemble another B18c bottom end with a B16 head. I really love the B series, they're dead loving simple to work with and 90% of the parts are interchangeable. Eventually I'd like to transition to K series but that will be when I have a nicer chassis.
|
|
#
?
Sep 19, 2018 02:07
|
|
|
builds character posted:Wow. Right thread for the tire but entirely wrong for whatever kind of cage/safety system they have for the driver. 427 mph, over a mile and dude is fine. Yeah but if he hadn't been wearing his seat belt he would have been thrown clear immediately and not had to walk back so far.
|
|
#
?
Sep 19, 2018 07:56
|
|
|
builds character posted:Wow. Right thread for the tire but entirely wrong for whatever kind of cage/safety system they have for the driver. 427 mph, over a mile and dude is fine. From a slightly different angle, aside from the excellent performance of the cage, the fact that it was on a salt flat and could tumble and skid to a stop over a long distance had to play a significant role in the driver walking away. Reduces the maximum G forces quite a bit compared to slamming into a wall. (It's kind of amazing the driver didn't end up concussed anyways, the tumbling had to have been awful.)
|
|
#
?
Sep 19, 2018 11:51
|
|
|
|
| # ? Jun 11, 2024 01:10 |
|
|
That had to have been a wild fuckin' ride. How long does it take to tumble one and a quarter mile from 400+?
|
|
#
?
Sep 19, 2018 13:54
|
|