Idling issues after replacing the timing chain

HAPPYMAMA1974

MEMBER
1999 HONDA ACCORD
2.3L
4 CYL
2WD
AUTOMATIC
230,000 MILES

Okay, so I changed the timing belt and the second belt put it back together and it jumped time. So I changed the top sprocket because the key way broke in it. Put a new one on it did the same process all over again. Set the timing and all started it up and now it acts like it is idling itself up and down on it and when I put it in gear it acts like it is not getting gas. What could it be?

4 Replies

MASTERWRENCH

MECHANIC
258 POSTS

Welcome to 2CarPros!

If the timing was set incorrectly or the belt jumped time while the engine was running, it's very possible one or more valves contacted the pistons. When this happens, it typically bends the valve stem to the point where it is no longer able to properly seal against the seat. The extra load on the valve train from this contact may have likely caused the sprocket key-way to fail as well. At this point, I would perform a quick compression test to determine if any of the valves are bent or damaged. For reference, the minimum compression spec for this engine is 135 psi with no more than 28 psi difference from cylinder to cylinder.

Here is a quick video tutorial on performing a compression test:
https://youtu.be/J3j85hg0d-4

Let us know what you find!

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Monday, October 14th, 2019 AT 4:49 PM

HAPPYMAMA1974

MEMBER
5 POSTS

The compression was a range of 152-155 on each cylinder.

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Tuesday, October 15th, 2019 AT 10:08 AM

HAPPYMAMA1974

MEMBER
5 POSTS

Okay, after I checked the compression and it was good. I processed to change the distributor cap and rotor button and it will for a few and I start to pull off it acts like it wants cut back and then just cut off like it is out of gas. Help me please.

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Tuesday, October 15th, 2019 AT 12:22 PM