Making some plates that are hopefully going to keep the crankcase straight and in one piece :) Check out my Instagram at / hollaendaren Spoiler alert, Instagram is going to be a bit ahead of the videos.
Пікірлер: 56
@adambrown21735 жыл бұрын
I weld for a living and I wouldn't attempt that. but thats why im watching .everyday is a school day
@Hollaendaren5 жыл бұрын
Thanks for the confidence inspiring words, haha! ;) there's plenty of people who weld 1½ twins together to make a triple so it's got to be doable somehow. But these castings seem to be a special kind of dirty. I'm actually afraid of fucking this up as I have almost no experience with it myself and replacement parts are a pain in the ass to find here (easier in the US/CA where there's plenty of these engines around). But learning by doing and all... I'm trying to fool someone who at least knows what he's doing into taking care of the welding for me though. If nobody wants to do it for me, I'll probably just tag it together and fill the rest with jb weld. It doesn't need to be very strong, the plates will take care of that. But it does need to be sealed up properly.
@White_Night_Demon2 жыл бұрын
why not?
@2STROKESTUFFING5 жыл бұрын
Awesome! Crossing fingers for the welding!
@Hollaendaren5 жыл бұрын
I haven't crossed my fingers this much in a long time.. I'm pretty nervous about the whole welding thing.
@Baldys_projects5 жыл бұрын
@@Hollaendaren Heat up the cases with a torch when welding.
@broughttoideas5 жыл бұрын
Do a collaboration video with him those are cool different KZfaqrs getting together helping eachother
@mohamedbilal12773 жыл бұрын
@@Hollaendaren what are the types of engine
@AuMechanic5 жыл бұрын
So far so good Re welding and jigs, i learned a while back after many trials that while a jig is good for holding parts in position no matter how thick or heavy the jig is once you undo the jig the part will still twist out of shape, the reason for that is that every weld creates a stress point when it cools due to shrinkage, and the sum of all the welds and each stress point created will cause the part to deform regardless of how sturdy the jig is. The trick is to equalise the stress, that means where there is a weld there needs to be an opposing weld opposite the exactly same length, thickness and amp/volts used. Alternative is to put the while thing in an oven and get it hot enough to de-stress the whole assembly. I'm not sure how hot you would need to get it but I know from experience bending stainless wire to make spring end hooks requires 350F for 30 minutes and allow to cool in air to de-stress the bends to stop them breaking at the bend. Id say that would be hot enough for an aluminium assembly, there may be something on the internet somewhere you could find that info on temp to use and how long to de-stress the assembly before removing the jigs. Found a few references on google searching "aluminum stress relief temperature" Maybe do a trial on some old casings first.
@Hollaendaren5 жыл бұрын
Yeah, I'm pretty worried about the whole warping and twisting part. But the joints won't have any gaps so shrinkage should be very minimal (hopefully). And the 2 plates will stay on the engine to pull it back into shape when everything is done. I'm really hoping I can avoid having to line bore it but we'll see I guess. I've tested welding on some leftovers and these castings are absolutely horrible to weld, so much junk in them. I'm actually considering just tagging it together and seal it with jb weld. I had a friend who is much better at tig welding than I am test too and while his results were much prettier than mine he didn't want to have anything to do with it after testing either.
@danielssonsgarage5 жыл бұрын
Tar det på svenska, är för kass på engelska. Me man kan inte jämföra aluminium mot konatruktionsstål eller rostfritt. Har du en jigg för svart eller rf hjälper det bara till liten del, där är det mest svetsscheman som gäller. För delarna drar sig ändå. Men aluminium är mycket mer tacksamt. Beroende på konstruktion så klart, men har du en stadig jigg eller plan yta och låter bitarna sitta där tills allt kallnat håller de sig typ exakt som jiggen,åtminstonde om du fortfarande tänker på att sprida ut värmen och ha nåt slags genomtänkt schema . Fråga mig inte varför bara 😅
@Hollaendaren5 жыл бұрын
@@danielssonsgarage Det var det här jag ville höra :) Tyvärr så har jag ingen ugn som är nog bred för att få in hela vevhuset, men jag tänkte att jag ställer motorn på 2 spisplattor innan svetstning, värmen borde bli nog jämn iaf, lär knappast bli så att ena ändan är iskall medans andra ändan är 200 grader. Sen får man väl linda in den i nåt täcke och bara låta den stå o bli varm i nån timme, för det lär väl ta ett tag. Sen får man väl ställa tillbaks det på spisen en stund efter svetsning, och ha täcke runt. Har du kanske några bra tips på hur jag ska få ut all (eller iaf lite) skit ur vevhusen? Har testat värma i ugn på 200 grader i några timmar men det hände inte så mycket då, men så fort man börjar svetsa så öser det bara ut olja överallt. Något jobbig att svetsa i.
@AuMechanic5 жыл бұрын
@@Hollaendaren That's where the oven also helps with the welding because aluminium conducts heat away from the weld so fast you are fighting against a fast cooling weld puddle trying to keep it fluid with turning up the amps so much you scorch a crater in it. Having that steel shaft n the middle will help store heat some as well as the plates on top and bottom once you take it out of the oven between welds or even using an oxy torch with heating tip to keep the assembly hot and wrapping it in a fire blanket to help reduce heat loss and also protect near the weld from spatter, The other thing is cutting a decent size Vee trough into the joins to fill because aluminium is a bit of a cross between fusing the parts like steel and filling a puddle like bronzing hence you need a decent Vee trough to fill. And if you use a grinders or wire brush be sure it is new and no sings of any other metals on it that can contaminate the weld, cleanliness is everything. AND the final de-stress step will require an oven to ensure the whole thing is kept at a constant heat for a long period for it to work and don't be tempted to take the jig off before the de-stressing in the oven because the jig will be holding some of the counter stress that will need to be present when it is in the oven to oppose the warpage until the heat de-stresses the whole assembly and then let it cool slowly in air to ensure no heat treating results from the oven time. Aside from the warping if the assembly is de-stressed in the oven it'll help reduce any chances of cases cracking later because of weld stress in it.
@danielssonsgarage5 жыл бұрын
@@Hollaendarenjo du måste förvärma för att få vettiga fogar utan att ha en jättekraftig svets. Sedan spricker det lätt utan också, så förvärm. Jo det är svårt, är riktig smutsig aluminium :/ men slipa ordentlig v-fog så får du bort mkt olja mekaniskt. Sedan öppen låga så det svettas ut, i omgångar, värm och tvätta. Fogberedning är a och o. Efter 3-4passafer med att svetsa-slipa går det svetsa bra utan porer om det är en kortare bit som ska svetsas. Men du har ju nån meter fog 😅 Jag har jobbat som aluminiumsvetsare i flera år tills ja bytte, så jag är inte BARA en internetexpert 😅
@malibu1885 жыл бұрын
In the old days some enduro riders would make repairs on two stroke cases with two pack resin and a piece of aluminium soft drink can :) Just a thought if the welding gets out of shape.
@Hollaendaren5 жыл бұрын
Yeah, I plan on doing that on the inside because I can't have my bar in place while welding there. The trouble is I need to find an epoxy that won't dissolve in methanol. I've tested jb weld vs methanol and it holds up for a very long time but eventually it does dissolve. We're talking months of being submerged in methanol though, so I think if I flush the engine with regular fuel after each race it'll be fine :)
@russwhite44465 жыл бұрын
Now its getting goooood, get after it bud good luck youve got some great advice on here but not from me ha id butcher it all the way to the junkyard lol.
@Hollaendaren5 жыл бұрын
I'm afraid I'll end up doing just that. I don't feel at all like I know what I'm doing here. If I can't get anyone else to weld it for me I should probably do a lot more training before I attempt it myself. There's so many variables and settings involved.
@taomicioli5 жыл бұрын
if you bolt the top plate first, it will hold the cases to do the bottoms before you put the bottom plate on
@peterjones69455 жыл бұрын
I'm going through these in sequence so don't know what happens next (yet). If you had used 'U' bolts around a centre bar it would clamp the case to bar Using 10mm plate) so bearing surfaces are lined up. The top of case where cylinders fit can then be decked to get all the same height.
@aserta4 жыл бұрын
Hey, what can i say, it's a nice elbow. I mean, you put it to good use, making all that elbow grease. :)
@deanmav35715 жыл бұрын
badass mechanic
@jermainebryson47925 жыл бұрын
This is bad ass
@bigred84385 жыл бұрын
I tried to find the original video, which explained what this engine came out of. At first l thought it was a Kawasaki 750, but then later l heard you discussing the the bell housing for the clutch and transmission and started to wonder if it an egine out of a suzuki 4X4 from the 1980's. Could you put me out of my misery and let me know what this made from please? An interesting project by the way,l couldn't work out what you were going to use it for either, motorcycle, car, gokart? Thanks.
@pauloconnor79515 жыл бұрын
Just one comment: I know you've finished it by now... But. The bearing surfaces being linear is more important than linear top crank case surfaces.
@Hollaendaren5 жыл бұрын
Of course :) but as I'm going to have to bolt the engine onto something it's pretty important that both the top and bottom are straight too so I don't twist the case when bolting it onto the engine mounting plate later. I just wanted to use every possible way of making it more rigid while welding.
@pauloconnor79515 жыл бұрын
@@Hollaendaren Yep, good work. Loved the racey Puch moped !. In New Zealand as a teen we put a Puch 175cc into a Sachs 49cc moped frame; wow did it ever fly !!! Forget changing gear.
@galieric5 жыл бұрын
Coming along .. keep up the good work
@Hollaendaren5 жыл бұрын
Thanks :) this footage is a couple of weeks old and not much has happened since because of all kinds of problems. So it looks like the smooth sailing part is over now. But it'll be fine, will just take a little longer :)
@laulau88624 жыл бұрын
Very good job ! 👍😉
@domdegood53765 жыл бұрын
Are you going to put a mall turbo?
@petercarlboer27935 жыл бұрын
Yo my man..... when are you going to do the next video, dying here ;)
@alancollard89395 жыл бұрын
on your main bar i would have turned the bearing alignment grooves in it for all the cyl spacing as another fool proof way off keep the cases in line
@Hollaendaren5 жыл бұрын
That's not a bad idea 👍If I do it again or make a triple out of 2 twins or something I'll definitely do that, thanks for the tip!
@brettlyde63385 жыл бұрын
What type of engines did you start with
@claytongauthier54203 жыл бұрын
Rotax 377
@davidevans88265 жыл бұрын
Hey How’s it going can’t wait to see how you get it welded up and checked up and stuff and you’re welding procedure ;love the project can’t wait for the next episode Can you explain the reason for the space or you’re gonna put under the cylinder and do you cut the cylinder down? It looks excellent take care bud.
@Hollaendaren5 жыл бұрын
I'm way behind with the editing, it takes me half a day to edit these videos and I just haven't had that kind of time. But hopefully soon! :) The welding looks like it went pretty well though, I just finished it last weekend. There's a bunch of pictures on my Instagram page if you want a preview of the next video :)
@Hollaendaren5 жыл бұрын
I forgot to answer about the plates.. They're there to strengthen the crankcase. I will use longer rods on the new crank, but also a bit shorter pistons (stock pistons are pretty high and not available any more from decent manufacturers). So the top plate kind of picks up the difference between the rods and the pistons as well as make the case a bit more rigid.
@rogerfrancis653 жыл бұрын
Great video and information, we could manage without the music tho.
@zuluflight54675 жыл бұрын
I think you should learn to pour the aluminum. it is not very complicated. then the fun begins properly. cool work
@oldschool19935 жыл бұрын
Those plates should be ground or they will pull your crankcase to whatever shape they are.
@benson4u2155 жыл бұрын
What would you recommend doing so for stress reliefs
@kiwiingenuity16775 жыл бұрын
Could use power saw to cut alloy plate.
@ryansmithza5 жыл бұрын
Nice elbow!
@chinawr47515 жыл бұрын
projeto excelente. parabens.!
@MrDannyd95 жыл бұрын
Use rubbing alcohol as a lubricant in these "clean" situations.
@grahamspinks48014 жыл бұрын
Great project, but lose the annoying background music.
@NovoGold5 жыл бұрын
😢😢😢 That music is 💩💩💩 please pick something else..! 🙏🏻🙏🏻🙏🏻😂