Hi Mike and thanks for using 2CarPros.com.
Based on what has happened so far, I would suggest two things. First, we need to confirm that the new head gasket is good and not leaking. There are two tests I need you to run. First is a simple test to check for head gasket issues. Here is a link that shows how that is done:
https://www.2carpros.com/articles/head-gasket-blown-test
If there are no symptoms related to what is in the aforementioned link, check engine compression.
https://www.2carpros.com/articles/how-to-test-engine-compression
I am not sure why two of the valves were bent unless there was a timing issue. I will assume that since the head was off, a new timing belt was installed. If you did the work yourself, read through these directions for belt replacement to confirm that everything was done to the manufacturer's specifications.
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TIMING BELT REMOVAL AND INSTALLATION
Removal
1. Disconnect negative battery cable.
2. Loosen power steering lock bolts and nuts accordingly and remove tension from power steering (P/S) and/or air conditioning (A/C) compressor drive belt.
3. Remove P/S and/or A/C drive belt.
4. Loosen generator mounting bolts and adjusting bolt.
5. Remove generator bolts.
6. Remove water pump pulley.
7. Remove crankshaft pulley and timing belt guide plate.
8. Remove upper and lower timing belt covers.
9. Turn crankshaft so that timing mark on timing belt pulley is aligned with timing mark on engine.
10. Check that "I" mark on intake camshaft pulley is aligned with mark on cylinder head cover and "E" mark on exhaust camshaft pulley is aligned with mark on cylinder head cover.
Notice Do not move camshaft or crankshaft once timing marks have been correctly positioned.
11. Loosen tensioner pulley lock bolt.
12. Protect timing belt with a rag.
13. Remove tensioner pulley.
14. Remove timing belt.
Notice Mark the direction of timing belt rotation (on the timing belt) for proper reinstallation.
Inspection
Notice Never forcefully twist, turn inside out or bend timing belt. Do not allow oil or grease to come in contact with timing belt.
1. Replace timing belt if it is contaminated with oil or grease.
2. Check timing belt for uneven wear, fraying, peeling, cracking and hardening. Replace timing belt as necessary.
3. Bend timing belt into a "U" shape as shown in figure. Distance "A" must be at least 1.0 inch (25 mm).
4. Inspect both idler pulley and tensioner pulley for uneven wear and smooth bearing operation.
5. Inspect camshaft pulleys and timing belt pulley for broken teeth or damage.
Notice Replace any component that shows damage, excessive wear, or that appears prone to a possible failure.
Installation
1. Install tensioner pulley.
Notice Replace tensioner spring whenever timing belt is replaced.
2. Pull tensioner pulley to its furthest point and tighten lock bolt.
3. Check that timing mark on timing belt pulley is aligned with timing mark on engine.
4. Check that "I" mark on intake camshaft pulley is aligned with mark on cylinder head cover and "E" mark on exhaust camshaft pulley is aligned with mark on cylinder head cover.
Notice If existing timing belt is being reused, install belt in proper rotation direction marked prior to removal.
5. Install timing belt onto timing belt pulley first, then idler pulley, exhaust camshaft pulley, intake camshaft pulley, and tensioner pulley in that order.
6. Check that there is no looseness in belt between idler pulley and exhaust camshaft pulley or between intake and exhaust camshaft pulleys.
7. Loosen tensioner pulley lock bolt and allow tensioner spring to apply tension to timing belt.
Notice Do not add additional tension.
8. Tighten tensioner pulley lock bolt to specified torque.
Tightening torque: 28 - 38 ft lbs. (38 - 51 Nm, 3.9 - 5.2 kg.m)
9. Rotate crankshaft two full revolutions (clockwise only) and align timing mark on timing belt pulley with timing mark on engine block.
10. Check that "I" mark on intake camshaft pulley "E" mark on exhaust camshaft pulley are aligned with marks on cylinder head cover.
11. If they are not aligned, remove timing belt and start process from tensioner installation.
12. Measure timing belt deflection by applying moderate pressure midway between camshaft pulleys. If deflection is not correct, repeat from tensioner installation.
Deflection pressure: 22 lbs. (98 N, 10 kg)
Deflection: 0.39 - 0.50 inch (11 - 13 mm)
13. Install lower and upper timing belt covers in that order.
Tightening torque: 70 - 96 ft lbs. (7.9 - 10.7 Nm, 0.8 - 1.1 kg.m)
14. Install timing belt guide plate and crankshaft pulley.
Tightening torque: 9.0 - 12.6 ft lbs. (12.3 - 17.2 Nm, 1.3 - 1.8 kg.m)
15. Install water pump pulley.
Tightening torque: 9.0 - 12.6 ft lbs. (12.3 - 17.2 Nm, 1.3 - 1.8 kg.m)
16. Install generator belt and adjust the tension.
17. Install P/S and/or A/C drive belt and adjust the tension.
18. Connect negative battery cable.
Installation
1. Install tensioner pulley.
Notice Replace tensioner spring whenever timing belt is replaced.
2. Pull tensioner pulley to its furthest point and tighten lock bolt.
3. Check that timing mark on timing belt pulley is aligned with timing mark on engine.
4. Check that "I" mark on intake camshaft pulley is aligned with mark on cylinder head cover and "E" mark on exhaust camshaft pulley is aligned with mark on cylinder head cover.
NOTE If existing timing belt is being reused, install belt in proper rotation direction marked prior to removal.
5. Install timing belt onto timing belt pulley first, then idler pulley, exhaust camshaft pulley, intake camshaft pulley, and tensioner pulley in that order.
6. Check that there is no looseness in belt between idler pulley and exhaust camshaft pulley or between intake and exhaust camshaft pulleys.
7. Loosen tensioner pulley lock bolt and allow tensioner spring to apply tension to timing belt.
Notice Do not add additional tension.
8. Tighten tensioner pulley lock bolt to specified torque.
Tightening torque: 28 - 38 ft lbs. (38 - 51 Nm, 3.9 - 5.2 kg.m)
9. Rotate crankshaft two full revolutions (clockwise only) and align timing mark on timing belt pulley with timing mark on engine block.
10. Check that "I" mark on intake camshaft pulley "E" mark on exhaust camshaft pulley are aligned with marks on cylinder head cover.
11. If they are not aligned, remove timing belt and start process from tensioner installation.
12. Measure timing belt deflection by applying moderate pressure midway between camshaft pulleys. If deflection is not correct, repeat from tensioner installation.
Deflection pressure: 22 lb. (98 N, 10 kg)
Deflection: 0.39 - 0.50 inch. (11 - 13 mm)
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I realize the directions are extensive, but I do not want to leave anything out. The following pictures all correlate with these directions.
Let me know what you find or if you have other questions.
Take care,
Joe
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Sunday, October 14th, 2018 AT 6:57 PM
