Replacement valve guide: mechanism design

Date:

2018-03-25 12:30:13

Views:

556

Rating:

1Like 0Dislike

Share:

Table of contents:

Replace the valve guides must be implemented when repairing the cylinder head, and excessive wear and tear items. Domestic cars have a significant advantage-they can repair it yourself, having at hand a minimum number of tools and fixtures.

Also in stores has a large selection of spare parts from different manufacturers, so no problems ever. However, when you adjust the valves on front wheel drive cars require washers, they are not always available for sale. But the guide sleeves are changed relatively easy. This procedure will ensure the proper functioning of the engine.

Why you need a bushing

replacement valve guide

To ensure stable and uninterrupted operation of the internal combustion engine, uses the cylinder head design. It has the following elements:

  1. Valve Guides.
  2. Valves.
  3. Plates and valve springs.
  4. Crackers for fixing elements.
  5. Seals to prevent the ingress of oil into the combustion chamber.

When you replace the valve guides VAZ-2109 need to ensure maximum purity. All work is carried out only on the bench, before installation, be sure to clear all the items from contamination. Otherwise dust particles will get inside of the combustion chamber and will damage the surface of the shells.

Valves are installed in the holes through which the fuel mixture and exhaust gases. The more accurately will the system valves, the higher the engine power, its torque. If the guide will be slightly deformed, it will lead to the fact that the stem of the piston will not be able to move – it will interfere with the friction force. Because of this, the efficiency of the entire mechanism is reduced in several times. The probability of breakage of the timing belt increases.

Recommended

"IZH 350 Planeta Sport" – frisky Soviet bike

It is believed that of the entire line of Soviet motorcycles "IZH" truly sporty just one. It is easy to guess that it was "IZH 350 Planeta Sport".History motorcycleIn 1973 the factory "Izhmash" was made a real breakthrough: the line went down the fir...

How does the rear bushing front arm and how many it serves?

How does the rear bushing front arm and how many it serves?

The Rear bushing front arm – one of the constituent elements of the vehicle chassis. He refers to the guide elements of the suspension together with the levers endures tremendous stress with wheels. However, with this this item, there are many ...

Oil consumption in the engine. Six reasons

Oil consumption in the engine. Six reasons

It is Hardly possible to find a motorist who would not be worried about the increased oil consumption. It is especially annoying when it happens with another new motor. Here are the most common causes that result in the consumption of oil in the engi...

Design valve systems

For each valve there are plates – the working parts of the discoid shape. They are the most densely adjoin to a socket. To ensure a tight connection, you will need when carrying out repairs to do the grinding. For this purpose, special abrasive pastes. The second part of the valve-stem is slotted at the end. With it is transmitted progressively and return movement to the plate. Thanks to this hole in the cylinder opened and closed in a timely manner.

replacing valve guide VAZ

To ensure valve movement strictly along the axis of the used sleeves. Design them such that the foot valve can't move laterally-either up or down. Between the inner part of the sleeve and the stem no gaps, so using it can't get engine oil into the combustion chamber. Although for this purpose the seals are installed. But over time, it is necessary to replace valve guides, since under the action of friction forces, they are still destroyed.

When you need to change the plugs

Be sure to make sure that it is faulty bushings. Similar signs can occur in case of failure of the seals. When should you change the guides on the valves?

  1. The presence in the combustion chambers of the engine oil. In this case the exhaust pipe is blue smoke, increased oil consumption.
  2. If there are knocks and other strange sounds coming from the side of the cylinder head.
  3. If the repair of head unit, be sure to install the new guides.
  4. Replace all the valves in the cylinder head after damage (breakage of the timing belt).
  5. When you overhaul the head unit.

replacing the valve guides VAZ-2109

Training for repair

As thoroughly as possible need to repair the head and timing mechanisms. You must have several special tools, sets of keys obviously will not be enough. Replacing the valve guides VAZ-2106 is performed similarly as on any other model. The design is different, but only slightly. The master will need such a tool:

  1. Mandrel for extrusion of rail seats. It can be manufactured on a lathe or buy in the store. The factory products have a handle and a working part which is a metal rod with a diameter that is slightly smaller than the bushing. At the end of the thinner part – it freely penetrates into the inner hole of the sleeve valve.
  2. Special sweep with dimensions 8,022..8,040 (for intake valves) and 8,029..8,047 (valve issue). Using these devices, which represent an extra-long drill bit, you can increase the diameter of the holes in the cylinder head for mounting the guides to the desired size.

All work is preferably carried out at the removed head. Be sure to remove the valves, gaskets, camshaft, and other items.

replacing the valve guides VAZ-2106

Sequence of actions

Pre-clean contamination from all elements of the head unit. New guides put in the freezer for a couple of days before the repair. Execution algorithm works like this:

  1. Insert a mandrel from the inside, knock,to knock out the old bushings. Do this carefully so as not to damage the elements of the cylinder head. Remove all guides.
  2. Clear space for the installation of new bushings. Use solvent and brush. Be sure after dry with compressed air.
  3. Warm the head unit on the stove to 100 degrees. During this process, bore holes extended, and install the bushings will be easier.
  4. Install the bushing retaining rings.
  5. Insert the guides into the planting hole, hammer them using the mandrel until it stops.

replacing the valve guides VAZ-2112

Completion

Before installing the valves, modify the internal holes in the bushings. To do this, let the head completely cool. Try to install the valves – if they are not, then use the reamer to enlarge the holes. First, use the smallest size. After each pass try on the valve.

You need to achieve the maximum density of landing of the valve in the sleeve. When you replace the valve guides VAZ-2112, be sure to mark the position of the inlet and outlet openings. The inlet sleeve shorter prom, so when mounting them it is impossible to confuse.


Article in other languages:

AR: https://tostpost.com/ar/cars/12876-replacement-valve-guide-mechanism-design.html

BE: https://tostpost.com/be/a-tamab-l/23055-zamena-nak-ro-valay-tulk-klapana-kanstrukcyya-mehan-zmu.html

DE: https://tostpost.com/de/autos/23059-ventilf-hrung-erneuern-ventil-die-struktur-des.html

ES: https://tostpost.com/es/coches/23076-sustituci-n-del-casquillo-de-gu-a-de-la-v-lvula-el-dise-o-de-un-mecani.html

HI: https://tostpost.com/hi/cars/12894-replacement-valve-guide-mechanism-design.html

JA: https://tostpost.com/ja/cars/12898-replacement-valve-guide-mechanism-design.html

KK: https://tostpost.com/kk/avtomobil-der/23048-auystyru-ba-yttaushy-vtulki-klapan-mehanizm-n-konstrukciyasy.html

PL: https://tostpost.com/pl/samochody/23004-wymiana-tulejki-prowadnicy-zaworu-konstrukcja-mechanizmu.html

PT: https://tostpost.com/pt/carros/23005-substitui-o-da-guia-da-luva-de-v-lvula-projeto-do-mecanismo.html

TR: https://tostpost.com/tr/arabalar/23054-yedek-k-lavuz-kol-kapak-mekanizma-tasar-m.html

UK: https://tostpost.com/uk/avtomob-l/23033-zam-na-napravlyayucho-vtulki-klapana-konstrukc-ya-mehan-zmu.html

ZH: https://tostpost.com/zh/cars/13643-replacement-valve-guide-mechanism-design.html






Alin Trodden - author of the article, editor
"Hi, I'm Alin Trodden. I write texts, read books, and look for impressions. And I'm not bad at telling you about it. I am always happy to participate in interesting projects."

Comments (0)

This article has no comment, be the first!

Add comment

Related News

"Infinity": the country-manufacturer. Who produces cars under the Infiniti brand?

One of the popular brands that manufactures luxury cars, – “infinity”, producer country which is Japan. Cars under the Infiniti brand popular all over the world and sold in almost every corner of the globe: USA, ...

"Tesla Roadster": description, specifications, and maximum speed

the undisputed world leader in the production of electric cars Tesla is preparing to launch serial production of the new hypercar Roadster, which plans Elon Musk will occur in 2020. It is a unique car with incredible performance. ...

Aquapel: reviews. Waterproof glass cleaner Aquapel: manual, price

Aquapel: reviews. Waterproof glass cleaner Aquapel: manual, price

Travel in poor visibility conditions and precipitation like not every driver. A worse review makes driving not only uncomfortable, but dangerous, because can cause accidents. To improve visibility in conditions of precipitation, m...

How to make a heated steering wheel with his hands?

How to make a heated steering wheel with his hands?

the fierce competition of automobile manufacturers have led the industry for incredible progress. Many producers are interested in attracting a potential buyer to their brand. It is especially difficult to come up with new to luxu...

Gorky automobile plant. The history of the automobile. The automotive industry in Russia

Gorky automobile plant. The history of the automobile. The automotive industry in Russia

Today, it is difficult to imagine our life without a car. They filled the roads, it is not only an effective way to quickly get from point a to point B, but also a great opportunity to transport cargo or large numbers of passenger...

Haval H6 is a Chinese SUV with good prospects

Haval H6 is a Chinese SUV with good prospects

Chinese SUV Haval H6, his appearance on the market created a furor. The model, of course, not left behind, but nevertheless very close to such respected brands as Mercedes, Opel and Renault. Chinese manufacturers are struggling to...