Q: I don't know how to reinstall my camshafts.

asked by on

I took out the camshafts so I could take off the heads to do a gasket replacement. But I didn't mark where the camshafts were pointing. But while I had the heads off I turned the crank and made it so two of the pistons were all the way up, is the a way I can just put the cams in relating to where the pistons are? If not how do I do it?

My car has 144000 miles.
My car has a manual transmission.

Usually everything is timed at top dead center when doing jobs like this. You should turn the engine until cylinder number 1 is at top dead center, then install the camshafts so the lobes for cylinder 1 are in position for top dead center as well. The camshafts on the other cylinder head should also have marks for where to line it up for top dead center, so you can set the camshafts there as well. As you’re installing the cylinder heads, make sure that there are no open valves that will rest on top of a piston at the top of its stroke. If you’re going to finish this job, I would strongly recommend getting a factory service manual to ensure you have all the correct specifications and information. You can usually find one online from Amazon or eBay. Once you have the car back together, you should turn the engine over twice by hand, to make sure that there is no contact between valves and pistons. If you feel any firm resistance, double check your timing marks before cranking it over. If you want to have all the timing marks checked before trying to start it, you can have a qualified professional such as one from YourMechanic.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. I don't know how to reinstall my camshafts.

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Truck stalls while I'm driving and then dies

Hi there. From the description you have provided, your vehicle dies intermittently while driving, stop put in park and starts after a few tries, could be several possibilities. Assuming the check engine light is not coming on, it could be...

Q: Coolant/antifreeze fluid leak

If you are not seeing a leak in the cooling system that usually means the coolant is getting in the engine. I would check your oil dipstick and look for a muddy milky buildup on the tip of the dipstick....

Q: Q: Problems with idle

Unfortunately, this is something that older cars suffer from. Vacuum lines are made of rubber. Over time, the rubber in the engine compartments begins to get hard and brittle. Once this happens it no longer performs its job properly and...

Related articles

Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...