Timing belt

Tiny
RIFFIE C HOLT
  • MEMBER
  • 1991 MERCURY CAPRI
  • 4 CYL
  • TURBO
  • 2WD
  • AUTOMATIC
  • 80,000 MILES
Need to know how to replace timing belt and water pump on 91 mercury capri
Thursday, January 24th, 2019 AT 9:28 AM

3 Replies

Tiny
SEVAG P
  • MECHANIC
  • 405 POSTS
Hello RIFFIE thanks for using 2 car pros.
Here are the direction for timing belt replacement specific to your vehicle.
PROCEDURE.
REMOVAL (SEE PIC 1)
1-Raise vehicle on hoist.
2-Remove right front tire and wheel assembly. Remove RH splash guard.
3- Lower vehicle.
4-Remove spark plugs. Set engine timing to TDC on No.1 cylinder.
5- Remove generator and power steering belts.
6- Remove oil dipstick.
7- Remove water pump pulley.
8-Remove crankshaft pulley, damper and support plate.
9-Remove crankshaft timing belt pulley retainer bolt and retainer.
10- Remove upper timing belt cover.
11- Remove center and lower timing belt covers.
12- Remove timing belt tension spring.
13- Loosen timing belt tension pulley.
14- Support engine with floor jack and remove RH engine mount.

NOTE: Mark timing belt rotation direction before removal.
Inspection

Timing Belt Tension Spring(SEE PIC 2)
When servicing the timing belt, check the free length of the timing belt tension spring. Replace if out of specification.

Timing Belt

CAUTION:
Never twist, turn inside out, or bend timing belt. Keep belt away from grease and oil. Replace the timing belt if affected by grease or oil. Check the timing belt for wear, tears, peeling, cracks or hardening. Replace the belt, if required(SEE PIC 3).

Tensioner and Idler Pulleys

CAUTION:
Do not clean tensioner or idler pulleys with solvents. Wipe them clean only. Spin pulleys by hand and check for smooth rotation or abnormal noise. Replace, if required.(SEE PIC 4).
Timing Belt Pulleys

CAUTION: Do not clean pulleys with solvents. Wipe them clean only.
Inspect pulleys for wear, deformation, or damage. Replace, if required.

Installation
1. Ensure timing marks are properly positioned on camshafts and crankshaft as shown. The intake camshaft should have the letter "I" aligned with the arrow on the belt cover. The exhaust camshaft should have the letter "E" aligned with the arrow on the belt cover.
2. The crankshaft woodruff key should align with the arrow as shown.
3. Tighten tension pulley with tension spring fully extended.
4. Install timing belt. Keep tension on the opposite side of the tensioner as tight as possible. Ensure rotation mark on belt is correct.
5. Install crankshaft timing belt pulley retainer and bolt. Tighten pulley retainer bolt to 108-118 N.M (80-87 lb-ft).
6. Turn crankshaft two full turns. Check alignment marks. If any mark is not aligned, remove timing belt and reset timing.
7. Loosen tension pulley retaining bolt to allow tension spring to tighten belt.
8. Tighten tension pulley retaining bolt to 37-52 N.M (28-38 lb-ft). Rotate engine two full turns. Ensure timing marks are aligned.(SEE PIC 4)

9. Measure timing belt tension between camshaft pulleys. Belt deflection should be 8.5- 11.5 mm (0.34-0.45 inch). If incorrect, loosen tension pulley and repeat procedure. If proper tension cannot be achieved, replace tension spring.
10. Install lower, center and upper timing belt covers. Tighten retaining bolts to 8-11 N.M (71-97 lb-in).
11. Install RH engine mount.
12. Install crankshaft damper, pulley and support plate. Tighten pulley and damper retaining bolts to 12-17N.M(10-12 lb-ft).
13. Install water pump pulley. Tighten retaining bolts to 8-11 N.M (71-97 lb-in).
14. Install generator and power steering belts.
15. Install oil dipstick.
16. Raise vehicle.
17. Install splash guard and right front wheel and tire assembly. Tighten wheel lug nuts to 90-120 N.M (67-88 lb-ft).
18. Lower vehicle. Install spark plugs. Start engine. Check for proper operation.(SEE PIC 5 AND 6)
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Friday, January 25th, 2019 AT 11:16 AM
Tiny
RIFFIE C HOLT
  • MEMBER
  • 3 POSTS
Thank you so very much.
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Wednesday, January 30th, 2019 AT 8:22 AM
Tiny
SEVAG P
  • MECHANIC
  • 405 POSTS
You are welcome. Thank you for using 2CarPros.
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Wednesday, January 30th, 2019 AT 8:24 AM

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