Romeo Engine
Timing Drive Components - Romeo Engine
Special Tool(s)
Removal
CAUTION: Since the engine is not free-wheeling, timing procedures must be followed exactly or piston and valve damage can occur.
1. Remove the engine front cover.
2. Remove the crankshaft sensor ring from the crankshaft.
3. Rotate the crankshaft until the timing mark on the RH camshaft sprocket is approximately at the 11 o'clock position and the timing mark on the LH camshaft sprocket is approximately at the 12 o'clock position.
4. Install the special tools on the camshaft.
5. Remove the timing chain tensioning system from both timing chains.
1 Remove the bolts.
2 Remove the timing chain tensioners.
3 Remove the timing chain tensioner arms.
6. CAUTION: Unless otherwise instructed, at no time when the timing chains are removed and the cylinder head is installed is the crankshaft or camshaft to be rotated. Severe piston and valve damage will occur.
Remove the LH and RH timing chains and the crankshaft sprocket.
- Remove the RH timing chain from the camshaft sprocket.
- Remove the RH timing chain from the crankshaft sprocket.
- Remove the LH timing chain from the camshaft sprocket.
- Remove the LH timing chain and the crankshaft sprocket.
7. Remove the timing chain guides.
1 Remove the bolts.
2 Remove the LH timing chain guide.
3 Remove the bolts.
4 Remove the RH timing chain guide.
Installation
1. CAUTION: Timing and procedures must be followed exactly or damage to valves and pistons will result.
Compress the tensioner plunger, using an edge of a vise.
2. Using a small screwdriver or pick, push back and hold the ratchet mechanism.
3. While holding the ratchet mechanism, push the ratchet arm back into the tensioner housing.
4. Install a paper clip into the hole in the tensioner housing to hold the ratchet assembly and plunger in during installation.
5. Remove the tensioner from the vise.
6. If the copper links are not visible, mark one link on one end and one link on the other end, and use as timing marks.
7. Install the crankshaft sprocket, marking sure the flange faces forward.
8. Install the timing chain guide.
1 Position LH timing chain guide.
2 Install and tighten the bolts.
3 Position the RH timing chain guide.
4 Install and tighten the RH bolts.
9. CAUTION: Unless otherwise instructed, do not rotate either the crankshaft or the camshafts, when the timing chains are removed and the cylinder heads are installed. Severe piston and valve damage will occur.
NOTE: The number one cylinder is at Top Dead Center (TDC) when the stud on the engine block fits into the slot in the handle of the special tool.
Using the special tool, position the crankshaft so the number one cylinder is at TDC.
10. Remove the special tool.
11. Position the LH (inner) timing chain on the crankshaft sprocket, aligning the copper (marked) link with the timing mark on the sprocket.
12. Install the LH timing chain on the camshaft sprocket, aligning the copper (marked) link with the timing marks on the sprocket.
13. NOTE: The LH timing chain tensioner arm has a bump near the dowel hole for identification.
Position the LH timing chain tensioner arm on the dowel pin and install the LH timing chain tensioner.
14. Remove the retaining clip from the LH timing chain tensioner.
15. Position the RH (outer) timing chain on the crankshaft sprocket, aligning the copper (marked) link with the timing mark on the sprocket.
16. Install the RH timing chain on the camshaft sprocket, aligning the copper (marked) link with the timing marks on the sprocket.
17. Position the RH timing chain tensioner arm on the dowel pin and install the RH timing chain tensioner.
18. Remove the retaining clip from the RH timing chain tensioner.
19. Make sure that the copper (marked) chain links are lined up with the dots on the crankshaft sprockets and the camshaft sprocket.
20. Remove special tools from the camshaft.
21. Install the crankshaft sensor ring on the crankshaft.
22. Install the engine front cover.