How do you check and adjust valve clearances on Mercury Mariner?

For the 2.0L engine, start by unscrewing of the valve cover while positioning the number 1 cylinder on TDC on the compression stroke while the intake and exhaust cam lobes are facing upwards. The thickness of shims that fits tightly should be noted by measuring the clearance between the cam lobe base and the shim using feeler gauge for each valve. Turn the crankshaft again by 180 degrees clockwise to take the clearances for the cylinder No. 3, and also for the cylinder No. 4 and No. 2. If they are clearances are beyond the set range, some changes will be required. Because of the restricted installation space of the camshafts and cylinder head special tools are used for adjustments. To change a shim, you need to lower the piston from TDC by merely turning the crankshaft roughly 90 degrees clockwise in order to prevent the bending of the valve. Refer to the manufacturer service tool to proceed and lower the cam follower while taking off the shim and measuring its thickness. In the vicinity of small clearance, use a thinner shim; at large clearance, use a thicker shim. Once you have adjusted the clearances on the first cylinder, turn the crankshaft two full turns in order to set all installed shims, bring the crankshaft back to TDC and check all the clearances once again adjusting them if necessary. As for the 2.3L/2.5L engines, the procedure to check the valve clearances is quite the same as with the 2.0L, but due to the use of hydraulic tappets and cam followers with heads of various thickness to obtain the required clearance, the camshafts have to be removed to change followers.

Genuine Mercury Mariner Exhaust Valve

Exhaust Muffler Valve

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6 Exhaust Valves found

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Mercury Mariner Valve - Exhaust
Part Number: F6DZ-6505-A
$17.78 MSRP: $26.00
You Save: $8.22 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Replaced by: 7L8Z-6505-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2007 Mercury Mariner | 6 Cyl 3.0L DOHC EFI Modular | 4AT CD4E, 5-Speed Manual Transmission, 5-Speed Manual Transmission - AK, 6-Speed Automatic Transmission 6F Mid-Range, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Right Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive, Two-Wheel Drive (Left Hand Drive), Two-Wheel Drive (Right Hand Drive)
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Mercury Mariner Valve - Exhaust
Part Number: 1S7Z-6505-AA
$11.40 MSRP: $16.23
You Save: $4.83 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Replaced by: 9S4Z-6505-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2008 Mercury Mariner | 4 Cyl 2.3L, 4 Cyl 2.3L Hybrid Gas/Electric DOHC | 4AT CD4E, 5-Speed Manual Transmission, 5-Speed Manual Transmission - AK, 6-Speed Automatic Transmission 6F Mid-Range, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Right Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive, Two-Wheel Drive (Left Hand Drive), Two-Wheel Drive (Right Hand Drive)
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Mercury Mariner Valve - Exhaust
Part Number: 9E5Z-6505-A
$11.40 MSRP: $16.23
You Save: $4.83 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Replaced by: 9S4Z-6505-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2010-2011 Mercury Mariner | 4 Cyl 2.5L Duratec (110kW/150PS), 4 Cyl 2.5L PFI Gas/Electric | 4AT CD4E, 5-Speed Manual Transmission - AK, 6-Speed Automatic Transmission 6F Mid-Range, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
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Mercury Mariner Valve - Exhaust
Part Number: AL8Z-6505-A
$15.84 MSRP: $28.83
You Save: $12.99 (46%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Exhaust Valve
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2009-2011 Mercury Mariner | 6 Cyl 3.0L OHC Duratec | 4AT CD4E, 5-Speed Manual Transmission - AK, 6-Speed Automatic Transmission 6F Mid-Range, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
View related parts
Mercury Mariner Valve - Exhaust
Part Number: 7L8Z-6505-A
$17.78 MSRP: $26.00
You Save: $8.22 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Exhaust Valve
- Replaces: F6DZ-6505-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2009 Mercury Mariner | 6 Cyl 3.0L DOHC EFI Modular, 6 Cyl 3.0L OHC Duratec | 4AT CD4E, 5-Speed Manual Transmission, 5-Speed Manual Transmission - AK, 6-Speed Automatic Transmission 6F Mid-Range, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Right Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive, Two-Wheel Drive (Left Hand Drive), Two-Wheel Drive (Right Hand Drive)
View related parts
Mercury Mariner Valve - Exhaust
Part Number: 8E5Z-6505-A
$11.40 MSRP: $16.23
You Save: $4.83 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Replaced by: 9S4Z-6505-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2009 Mercury Mariner | 4 Cyl 2.5L Duratec (110kW/150PS), 4 Cyl 2.5L PFI Gas/Electric | 4AT CD4E, 5-Speed Manual Transmission - AK, 6-Speed Automatic Transmission 6F Mid-Range, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive

Mercury Mariner Exhaust Valve

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Mercury Mariner Exhaust Valve Parts Questions & Experts Answers

Valve - Exhaust
1S7Z-6505-AA
Q: How do you check and adjust valve clearances on Mercury Mariner?
A: For the 2.0L engine, start by unscrewing of the valve cover while positioning the number 1 cylinder on TDC on the compression stroke while the intake and exhaust cam lobes are facing upwards. The thickness of shims that fits tightly should be noted by measuring the clearance between the cam lobe base and the shim using feeler gauge for each valve. Turn the crankshaft again by 180 degrees clockwise to take the clearances for the cylinder No. 3, and also for the cylinder No. 4 and No. 2. If they are clearances are beyond the set range, some changes will be required. Because of the restricted installation space of the Camshafts and cylinder head special tools are used for adjustments. To change a shim, you need to lower the piston from TDC by merely turning the crankshaft roughly 90 degrees clockwise in order to prevent the bending of the valve. Refer to the manufacturer service tool to proceed and lower the cam follower while taking off the shim and measuring its thickness. In the vicinity of small clearance, use a thinner shim; at large clearance, use a thicker shim. Once you have adjusted the clearances on the first cylinder, turn the crankshaft two full turns in order to set all installed shims, bring the crankshaft back to TDC and check all the clearances once again adjusting them if necessary. As for the 2.3L/2.5L engines, the procedure to check the valve clearances is quite the same as with the 2.0L, but due to the use of hydraulic tappets and cam followers with heads of various thickness to obtain the required clearance, the camshafts have to be removed to change followers.