Here is the link for part2: • Cylinder head resurfac... CYLINDER BLOCKS AND HEADS REPAIR, LONDON ENGINEERING COMPANY: ndengineering.c... ENGINE PARTS: www.ebay.co.uk...
Sandpaper glued to glass is a perfectly good way to polish something flat! Angle grinder on the other hand... Though I think creativity award goes to the forklift wheel crank!
@@jalopyjalopy9489 ........... Crezi? Te contrazic Iata de ce Deformarile in majoritatea cazurilor sint minime, si nu depasesc per total mai mult de 0,2- 0,5, deja 0,5 mm este exagerat, prin urmare, aceste virfuri apar mai adesea doar pe capete De ce? Nu mai explicam acum, aceste puncte pot fi indepartate rapid, cu o pila lata fina, ptru a nu deteriora o suprafata mare de smilghel, doar in 2 - 3 puncte fara rost La chiuloasele din aluminiu nu se poate aplica rectificarea, datorita turatiei mari a petrii se infunda, se poate dar cu foarte mari precautii, prin frezare se practica de obicei dar la finisare se trce cel mai adesea pe foae abraziva Chiuloasele de fonta cit si blocurile motoare se pot rectifica cu succes, dar in multe cazur lucrarea nu impune obligatoriu o prelucrare pe masina de unde se deduce, timp perdut, preti de cost si chiar riscul unei nereusite De aceia, in atelierele mici, unde nu se dispune de masini, este o practica curenta si a rezolvat jdemii de probleme
When I was younger we used to use a big mirror with coarse and then fine grinding paste. Worked a treat on Minis and Triumphs. Used same thing for Motorbike heads too. Saved a fortune on head skimming 😁
@@xdygmnyrdf I tried it with an 8mm thick glass and sandpaper 120/180/220 the last 2 are for the finish, what I did was paste the sandpaper on the glass with a 3m spray adhesive, that was 4 years ago and it still works as the first day
I resurfaced the block and heads on my RV using files, sandpaper, a straight edge, feeler gauges and a flashlight. The old 454 big block Chevy runs great. It was a lot of work. This video makes it look easy...lol.
i think angle grinder is doable if you construct something like a milling machine where you can accurately drag it across and using a flat cardboard grinding disc ontop of that, totally doable. angle grinder with flap disc could take the worst, then dye all over the top and sandpaper with superflat block ontop would show what needs some extra care. very doable.
This is by far the best cylinder head resurfacing video I found. Just when I was about to vote for the guy with an angle grinder, there goes a guy, actually several guys, grinding their heads on concrete floor. Keep living and learning.
Cu polizorul unghiular, iar cel pe podea e o totala timpenie, nu a reusit decit sa strice si ce mai era bun Dar asa se intimpla cind nu ai suficienta pregatire Probabil au fost pusi in batae dejoc, ca orcum ceva bun nu are cum sa iasa
@@umairakhtar2963 well, I did that once, along time back. I got 3k on it before i had a combustion chamber leak/ misfire.. and i thought i did a pretty good job... at the time. Lol..
@@SubieRow I did once with grinder and accidentaly chipped around 1 cm, though i filled it with metal filler but it failed. Since then i use thick glass slab with 200 grit sand paper sliding to and fro on the surface of head. If surface is too bad, i simply send it to machine shop.
I've used the sandpaper on glass method myself on my SBC heads off a tbi motor. I drove it almost 10000 miles with no leaks untill I saved up enough for good heads. Wouldn't do this on any performance motor, but it's just fine for you 500 dollar daily driving beater. Shop I use wants 350 for a resurface
@David Stephens yes sir, running vortecs on my 87 k5 now. 3 angle, bullet nosed valve guides, polished exhaust runners, cleaned intake runners ect... the usual... am slightly disappointed with power out put over my old swirl ports. Think I may have put a less than great combination of parts when I built the motor. I feel like it should have more balls, and it should shit and get. I suppose the 4l60 and stock gears dont help much either... what to do next....🤔 😂
@@kosmos-ox8pw 🤣🤣🤣нет конечно!!! Ведь если у меня был бы хоть 38 нанограммов мозг рабочий,то я был бы как минимум президентом!!! Ну а если бы эти 38 нано были бы ещё и умными,то я и вообразить не могу (ну оно и понятно,мозгов то нихуя). Вот. А ебать и представить страшно,что бы было если весь мозг был бы умным (1.5 кг. вроде). То тут на память приходит киношка "Люси" Люка Бессона...
The method that I used to rectify the head is that of the 0.29 minute, the important thing is to have a smooth and uniform plane, then you have to push not only from one side to the other but also diagonally with an alternate direction, in one direction and then in the other, exercising the pressure in the most central and balanced way possible, as shown in the video at minute 1.17. I had a used Fiat Tempra that at the minimum fluctuated too much, I could not regulate it with carburation because it obviously didn't depend on that, I decided to dismantle the head and saw that it had been tampered with, there were rough signs made with the file. Buy the head gaskets and sand the valves, reassemble it. After work I felt it turn like a clock even without having to re-calibrate the carburetor.
Ой спасибо за подборку! До слёз... Отправлю знакомому ручному шлифовщику головок, может что для себя новое найдёт... Утверждает, что в сотку попадает...)))
в принципе,на плите можно вывести в сотку.... Только нужна поверенная плита,голова её не должна прогибать. Ну и она должна быть по твёрдости ниже,чем притираемый алюминий. А впрочем, учитесь на слесаря-инструментальщика.
Such a Genius! Nowadays improvising is a big help especially to those beginner like me and not yet productive shops in terms of tools and machines needed.
I really did not think I was still capable of cringing at my age (you see a lot and kind of get used to it). When they were running that head across concrete (?) and that guy was piloting that angle grinder, I found myself involuntarily cringing and even drawing back, hahaha. I figure the other folks are simply doing what they have to do with what they have.
Did the exact same thing 25 years ago on a 2.5 liter G.M. iron cylinder head. Worked perfectly. Great minds think alike!!!!!! Keep up the good work!!!!!!!
It doesn't matter if Micheal Jackson rose from the dead and moonwalked on it until it was flat. As long as the end result is a true flatness measured with a straight edge and feeler gauge, that is what counts.
А чё он в ручную об бетон трёт, если взялся руками своими, то надо механизировать процесс, привязать веревкой к машине и пару км прокатить, чтоб наверняка...
IgorKawa проверил этот метод. И в принципе возможно болгаркой выронить, но после неё всё равно полировать придётся т.к. поверхность шершавая. Одна пометка: Игорь поверочной плитой и шаберной краской смотрит где и сколько снимать, потом ещу подобрал диск, выяснил как болгарку держать, то-есть много чего учитывает. и то он болгаркой чистовой проход не когда не делает. Так что извращениями такими можно выровнять, но только если есть поверочная плита (или как минимум поверочная линейка). Но как правило извращением занимаются именно те у кого этого всего нет, у кого есть прецизионный инструмент скорее всего и фрезерный станок и шабер найдётся.
I can't believe the guy at 0:50 using a 4" grinder on that Volvo head! These are all hacks but that is especially noteworthy. I couldn't watch any more, pure sacrilege.
Actually you can get it surfaced to spec with an angle grinder, but only if you know exactly where to remove material, how much to remove and if you know how to hold the grinder to remove less. In other words, only people who have a decent surface plate, dial indicator or special metal scraping paint, etc CAN get it flat enough to meet specifications. The obvious thing here is that those that do have these kind of measuring instruments usually have the pro tools to surface the deck properly.
A hack? LOL This is how it was done for decades...way before people had fancy machines to do everything for them.. And it still works great today. You just never hear about it because they rather you waste money at a big machine shop then spend $10 on some fine grit sandpaper
This is the best video yet , I have a laugh and respect the engineering skills of these different (trades men) that will make do under adverse circumstances.
0:37 I did that technique on a Hyundai head that needed to be at work by morning. Used 1" slate at a tilted angle while owner helped by pouring water to lubricate. Took about 30 mins to get withing specs. He lost the car. Next week from an expired driver license. Got paid first 👍 2:19 looks the funniest.
Сегодня принесли головку после подобного экономиста, одна сторона относительно другой ниже на 1,2 мм - это рекорд, подобного не когда не было еще, как видно люди учатся на подобных роликах и растут в мастерстве.
Особенно тупо когда кто то восхищенно говори: эту страну на победить.... Не победить безграмотность похоже. На кия соренто дизель один так блок шлифовал, у которого только гбц снята. И вся стружка-пыльца на поршни сыпалась...
Выходит вы ещё дети по годам, раньше шлиф станков не было, так шлифовали всегда, это сейчас технологии, и если убирать даже станком, погрешность микронов велика, наждачкой нулевой погрешность минимальная😉
Делал большим камнем от карбарона.но там была ушатаная головка москвича 2140 азлк. Потом две прокладки ( под бенз непонятного качества) ездил, ничего страшного. Сейчас проще отдать 800р и на станочке тебе выскаблят до идеала и скажут сколько осталось ей....
This vid will save me bags of💰I hadn’t thought of using a disc grinder for levelling work - gonna get busy on some alloy motorcycle heads this weekend. Reckon I can hone the bores with my die grinder too!
I'm very proud of skillful mechanics, that they don't have the machine to do the job, but they have a vision to make it happens, what ever is a will, there is way to make happens, admire you guys for your ingenuity
We used the factory head's & our imagonation's to beat the 67-70 Mopar's & Ford's in my area. A 64- 327 could handle the 383's & 390's with a cam change, adjust the suspension & proper traction. These guy's are doing the same thing. Some better than other's lol
They obviously missed the easiest way of all - 8' rope and drag behind another car until the head is flat (check flatness with string pulled tight across head). CAUTION! Limit dragging distance - valve seats may "disappear", and/or possibly the increased compression ratio will require high octane racing or aviation fuel!!!
🤣I love this video because it is the exact way a felt when I did this to an old boat engine head. Back and forth over and over with great care and checking for what seemed like forever!
This is one reason machine shops exist. I worked in Tool & Die for over 40 years. There's a right way, a wrong way, and a half-assed way. Take your pick. Glass and benches aren't necessarily flat
Чисто теоретически таким методом можно сделать более менее нормально(атмосферный бензиновый мотор точно). На ровную поверхность положить стекло, на стекло наждачку и притирать головку положив ее на этот пирог. Главное убрать то что реально сильно выпирает. Если блок не повело то прокладка должна отработать свое)
@@80level69 В этом деле важна геометрия, то есть восстановление плоскости прилегания. И финишная шлифовка должна быть в любом случае нулевкой. Одно дело когда прокладка паронитовая, совсем другое дело, когда алюминиевая. Разные уровни допусков плоскостей. Если сомневаетесь, проверьте на поверочной плите.
@@iqinsanity flat is not the be all end all. Depending on what type of head gasket you run, there are many different types of finishes required for those different gaskets. I cant resurface an aluminum head with a stone surfacer, then use a cometic gasket, it would never seal. Your gasket material dictates the Ra finish required.
@@iqinsanity this isnt even good enough for graphite gaskets but you know what your right. Ive been doing machine work wrong for the past 28years. Been wasting my time going to school to learn to be a machinest and using a $36,000 resurfacing machine when I should have just kicked across the concrete floor. Wish you would have come along sooner and told me theres $36,000 dollars worth of magic in that concrete floor so I didnt have to waste all my hard earned time and money.
I don't care what kind of grinder wheel you have, do NOT use a grinder! You will increase the chances of uneven plain across the head and not allowing the head gasket not to properly seal.
Some of these are legitimate ways. Shout out to old skool funk! He taught me the best way to resurface. Some ways on here are pretty risky. Never use an angle grinder. Never use the concrete to resurface.
@superbarnie..LoL. Well obviously it's the gluing sandpaper to thick glass trick.🙄 Then again, I think there might be a special machine to do that, a machine, that a machine shop would have. LoL 😂
@Luminous65, well yes, Subaru (for example) uses 2 heads, so you would need to know exactly how much material has been removed, so the exact same amount of material is removed from the other side. Plus the fact that you would also need to calculate how much removal is necessary, so the correct thickness gaskets are used to get the correct bowl cc's and so compression ratio can be worked out. 👍🏻
I run the car maintenance RU-vid channel in Korea. I'm always learning such a great ideas on your channel. I hope we have a chance to be together. Thank you.
@@AaronJ323 : Korea 🇰🇷 has tons of Hyundai and Kia, Equus, autos, as well as other brands of Korean autos such as Ssang Yong. Korea also has many GM, Ford, Dodge, as well as European cars, BMW, Mercedes Benz, Audi, Vw, Porsche, etc. and some japanese imports too.
Te puedo creer que en el medio de la nada ej; el desierto saara , o la siberia , o alla alos pies del everest . Pero si tenes un rectificadora a la vuelta de tu casa .. y haces esto...sos un cavernicola!!!!!!
Some of you would be surprised what works in the real world. Most people aren’t running their engines at crazy RPMs or pulling huge loads, and some gitterdun methods work just fine for them. No waiting for machining, and no expense. Plus I’ve seen even good shops fuck shit up.
Some of these guys can spend thousands on their engines and they never get them to run how they want, people like in the video can do this and get another 50k miles out an engine, as you say not being put into a turbo engine or heavy trucks, just old ladas etc
Купил я значит копейку у дедули. Состояние хорошее, но ощущение, что кузов спиралью сгибается на лежачих, но это ладно! Метал устал в любом случае, НО! движок))) ГБЦ я сдал в металоприемку т.к. она была перекошена. Видно по кругу, когда точили, то сила нажатия не равномерная была. Не люблю эти не точности
