1986 GL1200A Timing


Information and questions on GL1200 Goldwings (1984-1987)
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trukker264
Posts: 6
Joined: Fri Oct 07, 2011 8:07 am
Location: Victoria,BC
Motorcycle: 1986 GL1200A
2006 GL1800

1986 GL1200A Timing

Postby trukker264 » Fri Oct 07, 2011 8:37 am



Don't know for sure what caused the problem, but ended up chewing up the right side timing belt. On inspection, left side is excellent, but right side teeth were virtually gone. Have new replacement belt available and am ready to change it but can't find a shop manual or instructions on how to set up the timing belt. Want to get the belt installed so I can turn it over and do compression test. Doc's on this site have every thing but the shop manual. Anyone know where I can get the instructions for the timing set-up?

Note: When the belt failed, the engine was still turning over and running (Rough) on the left cylinders. With the belt removed, right side shaft turns easily and cams/valves appear to be operating.



User avatar
valour1
Posts: 36
Joined: Sun Aug 07, 2011 3:00 pm
Location: Canada
Motorcycle: 1985 GL1200IF GoldWing Interstate

Re: 1986 GL1200A Timing

Postby valour1 » Fri Oct 07, 2011 11:35 am


dan1951
Posts: 106
Joined: Mon Oct 11, 2010 11:06 am
Location: armada mi. 48005
Motorcycle: 1985 gl1200a

Re: 1986 GL1200A Timing

Postby dan1951 » Fri Oct 07, 2011 10:09 pm

All these engines are interference in design, The valves will hit the piston crowns if timing is off over I believe 90 degrees. Do not the rotate engine crankshaft or camshaft with the belt removed or off the timing marks. Serious engine damage will occur. There is a plug located on the top of rear engine with a large flat screwdriver slot remove that and You will find the timing marks. T-1 is the refference mark to lineup with both cam marks on pulleys and belt cover marks lined up. Pulley small circle dot, Case mark will be located midpoint on the curvature of the case on both sides. A good manual is essential. Good luck with all.

trukker264
Posts: 6
Joined: Fri Oct 07, 2011 8:07 am
Location: Victoria,BC
Motorcycle: 1986 GL1200A
2006 GL1800

Re: 1986 GL1200A Timing

Postby trukker264 » Sat Oct 08, 2011 7:16 am

This is what I suspect has happenned. The teeth on the right side belt were so chewed up that the belt either skipped or just shredded the belt teeth at the crank pulley. Need to get the timing set up and replace the belt so I can do a compression test. Odds are it has either bent the valves or possibly damaged the pistons. Just got the belt and right side head gasket from Honda yesterday, hope to be able to check it out later this week




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