Help channel Promsvyazbank: 2200 0305 3314 4870 Ruslan Olegovich V. YUMoney: 4100 1178 3349 6761 Donate: https://www.donationalerts.com/r/varuol Guaranteed answer to your question here (indicate your email in the question): https://www.donationalerts.com/r/varuol WebMoney: Z350729664703 +79493142765 (MSK 8:00-17:00, day off Sat, Sun, WhatsApp, Telegram) Author of videos on the channel Ruslan Vasiliev Major repairs of the Volkswagen T4 cylinder head, welding cracks, replacing seats, replacing bushings, cutting seats, grinding the valve plate and the cylinder head surface, lapping valves, defecting the head and its parts, TIG welding, machining, jig boring and much more Volkswagen. We are on Zen: https://zen.yandex.ru/profile/editor/... We are on RuTybe: https://rutube.ru/channel/24456048/ Repair technology playlist: / playlist list=PLVz_9WxN63m_kQdE8zbqjQPRRsP03fDLU Valves playlist: • Valves Valve seat playlist: • Valve seats Bushings playlist: • Guide bushings Correct welding, cylinder head preparation, welding: • Cylinder head repair correct welding welding ... Correct welding, preparation of welding, welding: • Correct welding of cylinder head 2 preparation n... When and why is pressure testing needed: • Cylinder head repair Why is pressure testing needed and in... Gorlovka, Donetsk, Lugansk and the region. Our website: http://gbc2000.com/ We are on Facebook: https://www.facebook.com/groups/85371... We are on Twitter: https://twitter.com/SdelaiSamm?lang=ru We are on YouTube: / @gbcremont Video production: [email protected] For those who don't want to lose sight of us, I have placed links to our channels in Zen and Rutube in the description under the video. Come and subscribe. Well, while we have the opportunity, we will publish videos here as well, although restrictions have already been imposed and warnings have been received. Well, now let's watch the video about repairing the T4 head that has been announced for quite some time Hello everyone. Another head from Russia, from Krasnodar, has arrived for our work. As you can see, this is the head that I have already told you a little about and showed you how not to pack the head before sending it. The pins are sticking out of the parcel. And when I opened the parcel, I was far from sure that the cylinder head arrived to us intact. That is why I always ask to dismantle all protruding elements, especially this concerns studs. And if this is not possible, then place a block along the studs. Now I will open it up and see what such frivolity turned into. After all, not only can the stud be bent, but the stud seat can also be broken, and this is a bracket, and this is a problem. I always ask and our website emphasizes this. I also ask to wrap the head in bubble wrap in several layers and then the head is guaranteed to arrive intact. Checked. In this case, the client was lucky. Although the head was wrapped in only a few layers of thin stretch film and thin cardboard, the studs were not unscrewed. The studs were bent, but luckily they did not cause any trouble. Only two outer studs were bent and they did not break the aluminum when bent. Let's look at the cylinder head surface. The customer said that the head is all in cracks. Here we see the usual standard cracks for this head between the seats and on the 3.4 cylinder cracks from the inlet seat to the pre-chamber. This is a standard set of cracks for this head. It is also visible. That someone has already worked with roller cutters on the inlet places is clearly visible. Here the aluminum is not damaged, but here the careless work with roller cutters is clearly visible. Well, I will unscrew the studs from the camshaft bed. They give in almost by hand and it is doubly unclear why they were not unscrewed, did not secure the delivery, because it is intuitively clear: if they stick out, there may be a problem. I will clean the head from the sealant so that I can take measurements of the valve leg extension. I remove the sealant with a brush, like one loaded into a milling cutter chuck. I take measurements of the offsets and for clarity I will apply them to the side of the head. Yes, as I assumed, the intake valve seats of cylinders 1-2-3 are sunken. Again, in some places these seats will have to be removed anyway, since the cracks will be welded. Where I will not interfere with welding, then in those places, these seats will be pulled out and replaced. I decompress the head, and for this I will tap the valve spring plates to loosen the crackers at the wedge. Using a clamp valve spring compressor and a magnet for extracting crackers, I decompress the valves. Then I remove the plates with the springs and turn the head over. I will definitely number the valves and, using tactile sensations, I will first see what is happening with the wear of the bushings. As a rule, the wear on these heads will be decent and no device for measuring will be needed. Actually, that's how it turned out, the valves in the b