4.5.8. The GRM drive - the general information, service of components
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Camshafts can be turned without risk of collision of valves with pistons in case the bent shaft is given to situation 45 ° before VMT of the piston of the first cylinder. |
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At the wrong assembly there can be a collision of valves with the bottoms of pistons! |
General information
Performing procedures of removal and installation of elements of the GRM drive will require the following special tools:
Pin of blocking of the camshaft h4 - No. 111589031500;
Camshaft key - No. 119589000100;
Stripper of a nave/pulley of a bent shaft - No. 103589003300;
The tool for blocking of a flywheel / a driving disk - No. 116589014000;
The tool for installation of links of a gas-distributing chain - No. 000589584300;
A set of shtampoderzhatel for installation of links of a gas-distributing chain - No. 103589016300;
Attenuators of a gas-distributing chain - No. 110589035900;
The tool for blocking of a pulley - No. 603589004000.
Pay attention to the next moments:
If the return is not stipulated especially, turn the engine only in the normal direction;
Observe the efforts of tightening of fixture stipulated by standards;
At the corresponding complete set do not forget to mark adjusting position of the CKP sensor before removal;
Do not turn a bent shaft for asterisks of camshafts, and also other asterisks of the GRM drive;
Do not turn cranked and camshafts at the removed gas-distributing chain.
Service of components of the GRM drive
GRM drive design
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1 — the Asterisk of a bent shaft
2 — the Bearing finger
3 — the Guide of a natyazhitel
4 — Natyazhitel of a chain
5 — the Asterisk of the final camshaft
6 — the Top guide of a chain
7 — the Asterisk of the inlet camshaft
8 — Sending to a chain of the right head of cylinders
and = 8.1 mm
b = 9 mm
9 — a guide Pin
10 — a guide Pin
11 — the Intermediate asterisk
12 — a guide Pin
13 — a guide Pin
14 — the Internal guide of a chain of the left head of cylinders
and = 8.1 mm
b = 9 mm
15 — the Asterisk of the inlet camshaft
16 — the Top side guide of a chain
17 — the Asterisk of the final camshaft
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25 — the Gas-distributing chain (216 dual links)
26 — the External guide of a chain of the left head of cylinders
and = 8.1 mm
b = 9 mm
27 — a guide Pin
28 — a guide Pin
29 — Sending to a chain of the block of cylinders
and = 8.1 mm
b = 9 mm
30 — the Pribolchenny bearing finger
31 — the Pribolchenny bearing finger |
Details of installation of elements of the GRM drive
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1 — Adjusting tags for reduction of the engine in the provision of VMT of the end of a step of compression of the first cylinder
2 — Cores with a diameter of 6.5 mm for fixing of camshafts
3 — during installation of a chain track that ledges of the regulator of the camshaft (3) were in situation "delays".
4 — Blocking of the camshaft from a provorachivaniye can be made by means of a key.
5 — Removal of assembly of a natyazhitel of a chain |
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1. Disconnect a negative wire from the battery.
2. For the purpose of simplification of a provorachivaniye of the engine turn out all spark plugs.
3. Bring a bent shaft into situation 45 ° before VMT of the piston of the first cylinder.
4. Pass lock cores (2) with a diameter of 6.5 mm throughout camshafts.
5. During installation of a chain track that ledges of the regulator of the inlet camshaft (3) were in situation "delays". |
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At the wrong assembly there can be a collision of valves with the bottoms of pistons! |
Before starting implementation of repair procedures remove assembly of a natyazhitel, - do not incline assembly in the course of removal.
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The final camshaft of the right head of cylinders has to be blocked by a lock core before removal of a natyazhitel. |
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1. Blocking of the camshaft from a provorachivaniye can be made by means of a key (4).
2. Having executed necessary recovery repair, establish a natyazhitel into place.
3. Tighten NEW bolts of the regulator inlet and asterisks final camshafts with effort of 18 Nanometers (a bolt of type A with a separate washer) or 20 Nanometers + 60 ° (a bolt of type B with the built-in washer).
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During performance of repair work the bolt of type A should be replaced with a disposable bolt of type B. |
4. On the engine 119.97 replace a regulator spring if its sizes do not correspond requirements of Specifications.
5. Tighten the NEW bolt of the regulator of the inlet camshaft with effort of 7 Nanometers (a bolt of type A with a separate washer) or 5 Nanometers + 90 ° (a bolt of type B with the built-in washer). |
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During performance of repair work the bolt of type A should be replaced with a disposable bolt of type B.
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On release models to 07/94 do not forget to grease the central bolt of a pulley of a bent shaft and its washer(s) before installation.
