So I have a fresh b18c1 longblock put together, with all new parts on it, and all oem. I'm trying to set my timing belt on, and i got my cams lined up with the marks matching up and the crank pulley with the white dot on the timing mark. When I go to tension the belt it will take up the slack on the exhaust side and I'll tighten the bolt spin it around to bring back around to check the timing.
When I come back around the marks on the cams don't match up it's close but off and i have to go past about 5 degree's on the crank to get the cams to line up. I tried numerous times to get it to be perfect but I can't get it for the life of me. Does everything need to be super perfect or can i adjust this by the ignition timing?
Line everything to TDC then install the belt. Crank, tensioner, waterpump, exhaust cam then intake cam. Once you get the belt on tighten down the tensioner. Turn the crank counter clockwise two or three times to make sure everything spins freely and then line it back up to TDC. Make sure everything is still at TDC, loosen the tensioner and turn the motor 3 teeth and tighten down the tensioner to 40ft lbs.
Make sure everthing is in-time to start, install the t-belt begining on the top of the intake cam, then to the exhaust cam, then to the crank, removing as much slack as you can without moving either camshaft or crank pulley then (skipping the tensioner) to the water pump, the belt should not be on the tensioner yet, just kind of pulled infont of it...make sure you have no slack at all on any part of the belt except at the tensioner (where the belt is not yet on). Make sure your tensioner is loose, then pull the tensioner enough until you can slip the belt on. Double check there is no slack on the front of the timing belt (between the exhaust cam and crank pulley) and between the two cam gears on top.
Install your crank pulley with pulley allignment key and bolt (tighten crank pulley bolt finger tight) and rotate the engine COUNTER-clockwise 3 teeth turning the crank pulley by hand (looking at the movement of the cams) and then tighten the tension to 40 ft.lbs. (rotating is easyest done without spark plugs installed. Now rotate the crankshaft pulley counter-clockwise until your camshafts have made ONE full rotation ( keep in mind your crank will spin twice) slowly stopping when the two timing marks line up on the cams line up and the "up" arrows on the cams are obviously...pointing up, remove your crank pulley, and check that the pointer mark on the oil pump housing and dot on the timing belt crank pulley line up.
Honda and the Honda marquee are registered trademarks of the American Honda Motor Company, Inc. Neither American Honda Motor Company nor its subsidiaries or affiliates shall bear any responsibility for Honda-Tech.com content, comments, or advertising. Honda-Tech.com is not affiliated with American Honda Motor Company in any way. American Honda Motor Company does not sponsor, support, or endorse Honda-Tech.com in any way.
Copyright/trademark/sales mark infringements are not intended or implied.