GM LY7 engine
Content
The 3.6-liter V6 General Motors LY7 engine was assembled at the concern's factory from 2003 to 2012 and was installed on the Cadillac STS, GMC Acadia, Chevrolet Malibu or on the Suzuki XL-7 under the N36A index. On the Holden model, a simplified modification of the LE0 was installed with phase regulators only at the inlet.
The High Feature engine family also includes: LLT, LF1, LFX and LGX.
Technical characteristics of the GM LY7 3.6 liter engine
| Exact volume | 3564 cm³ |
| Supply system | direct injection |
| Internal combustion engine power | 240 - 275 HP |
| Torque | 305 - 345 Nm |
| Cylinder block | aluminum V6 |
| Block head | aluminum 24v |
| Bore | 94 mm |
| Piston stroke | 85.6 mm |
| Compression ratio | 10.2 |
| Features of the internal combustion engine | DOHC |
| Hydraulic compensator. | Yes |
| Timing drive | chain |
| Phase regulator | Dual VVT |
| Turbocharging | no |
| What kind of oil to pour | 5.7 liters 5W-30 |
| fuel type | AI-95 |
| Ecologist. class | EURO 4 |
| Exemplary. resource | 280 000 km |
The weight of the LY7 engine according to the catalog is 185 kg
Engine number LY7 is located at the junction of the block with the box
Fuel consumption ICE Cadillac LY7
On the example of a 2005 Cadillac STS with an automatic transmission:
| City | 17.7 liters |
| Track | 9.4 liters |
| Mixed | 12.4 liters |
Which models are equipped with the LY7 3.6 l engine
| Enclave 1 (GMT967) | 2007 – 2008 |
| LaCrosse 1 (GMX365) | 2004 – 2008 |
| Rendezvous 1 (GMT257) | 2004 – 2007 |
| CTS I (GMX320) | 2004 – 2007 |
| CTS II (GMX322) | 2007 – 2009 |
| SRX I (GMT265) | 2003 – 2010 |
| STS I (GMX295) | 2004 – 2007 |
| Equinox 1 (GMT191) | 2007 – 2009 |
| Malibu 7 (GMX386) | 2007 – 2012 |
| Acadia 1 (GMT968) | 2006 – 2008 |
| G6 1 (GMX381) | 2007 – 2009 |
| G8 1 (GMX557) | 2007 – 2009 |
| Torrent 1 (GMT191) | 2007 – 2009 |
| Aura 1 (GMX354) | 2006 – 2009 |
| Outlook 1 (GMT966) | 2006 – 2008 |
| View 2 (GMT319) | 2007 – 2009 |
| XL-7 2 (GMT193) | 2006 – 2009 |
Disadvantages, breakdowns and problems of the ICE LY7
The main problem of this power unit is considered to be a low resource of timing chains.
They can stretch up to 100 km, and replacing them is quite complicated and expensive.
When replacing chains, it is easy to ruin the front cover, but it is very expensive.
The motors of this series are very afraid of overheating, and the radiators, as luck would have it, flow regularly
Weaknesses also include a short-lived pump and a capricious control unit.
