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AQ131A replaced cylinder head with automotive 240 series

J

Jim Green

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"Tried to find my original pos

"Tried to find my original post in the archives, but was unsuccessful. El Pescador, you gave me good advice about replacing my cylinder head with corroded exhaust port #4 with a used head from a 240 series Volvo auto. Swap out now complete, switched out the cam as you advised. Was careful to mark and maintain timing belt position. Now, it won't start. Doesn't even ignite. I have spark, I have fuel. I don't have a guage to check compression but not seeing why this would be an issue. Figuring I screwed something up somehow. Any ideas?"
 
"At first glance, it sounds li

"At first glance, it sounds like either the timing belt has been installed with the gears in the wrong position, or the ignition timing is incorrect, or the ignition wires have been installed incorrectly.

Regarding the timing belt, make sure that: 1) the dot in the gear at the end of the camshaft lines-up with the notch in the valve cover; 2) the dot on the crankshaft pulley lines-up with the mark on the inner guide plate; and 3) the timing dot in the accessory drive pulley lines-up with the notch on the backing plate. Refer to Seloc, pages 3-60, 3-61 & 3-62.

If the above is OK and you have not removed the distributor, make sure the ignition wires in the distributor cap follow (clockwise) the firing order 1-3-4-2. If OK, put #1 piston in TDC at the end of the compression stroke (if you don't have a compression gauge, remove the spark plug and cover the hole with your finger, then turn the engine until you feel compression, keep turning and when you start not feeling compression keep turning until the marks in the crankshaft pulley and the zero in belt cover do line-up), then remove the distributor cap and see where the rotor is pointing towards; that will tell you if the spark is being sent to the correct spark plug or not.

Hopefully, the above will help you to find what went wrong during assembly."
 
el_pescador said:
"At first glance, it sounds li

"At first glance, it sounds like either the timing belt has been installed with the gears in the wrong position, or the ignition timing is incorrect, or the ignition wires have been installed incorrectly.

Regarding the timing belt, make sure that: 1) the dot in the gear at the end of the camshaft lines-up with the notch in the valve cover; 2) the dot on the crankshaft pulley lines-up with the mark on the inner guide plate; and 3) the timing dot in the accessory drive pulley lines-up with the notch on the backing plate. Refer to Seloc, pages 3-60, 3-61 & 3-62.

If the above is OK and you have not removed the distributor, make sure the ignition wires in the distributor cap follow (clockwise) the firing order 1-3-4-2. If OK, put #1 piston in TDC at the end of the compression stroke (if you don't have a compression gauge, remove the spark plug and cover the hole with your finger, then turn the engine until you feel compression, keep turning and when you start not feeling compression keep turning until the marks in the crankshaft pulley and the zero in belt cover do line-up), then remove the distributor cap and see where the rotor is pointing towards; that will tell you if the spark is being sent to the correct spark plug or not.

Hopefully, the above will help you to find what went wrong during assembly."
Click to expand...
 
Jim Green said:
"Tried to find my original pos

"Tried to find my original post in the archives, but was unsuccessful. El Pescador, you gave me good advice about replacing my cylinder head with corroded exhaust port #4 with a used head from a 240 series Volvo auto. Swap out now complete, switched out the cam as you advised. Was careful to mark and maintain timing belt position. Now, it won't start. Doesn't even ignite. I have spark, I have fuel. I don't have a guage to check compression but not seeing why this would be an issue. Figuring I screwed something up somehow. Any ideas?"
Click to expand...
Did you ever resolve your issues and how did the swap work out and what year car will that work from any year 4 cylinder similar motor
 
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