I cant find the timing marks on my 85 honda prelude i have the manual and it says they r on the crank case cover but its not there

U need to re-timed the engine. Check all four marks going across the two cam pully is lined up with the engine head surface.
Then check the crank pully alignment mark the single notche align to the mark on the timing cover

there is a arrow on each cam lets call them north, you will also see marks at east and west to level cams, east and west need to be parallel were the head mets the valve cover while north points up done. Also there is a mark on the flywheel on the crank that needs to point north as well If you have the plastic cover on the lower you will see a plactic to line it up to.

the crank has a mark for TDC. (white) and the cam gear should have UP marked on it. You want the UP mark UP at the 12 oclock position.(as you are looking at the top pulley) there will be marks at the 3 and 9 oclock positions and these marks line up the the flat portion of the head that the valve cover sits on. While its apart ......replace the timing belt, and replace the pulley, and replace the cam and crank shaft seals, adjust the valves.

Hi, this timing mark is for the 85 model, but they are the same..
Click on the following direct Link. It has the Timing Belt Diagrams with Marks for the Camshaft and Crankshaft AND Guidelines that you will need.
"Align Mark on Camshaft Sprocket with the Valve Cover Surface."
It also has a variety of other Diagrams for your future use.
Let me know if this helped, or if you have additional information or questions. Feel Free to contact me at FixYa.com

http://www.2carpros.com/car_repair_information/year/1985/make/honda/model/prelude/1985_honda

The 1990-1993 accord timing marks are located in the space between the engine and transmission. There is a rectangular rubber plug, at the top, front of the transmission housing, that pulls out and the timing marks are visible(with a timing light) through that access hole.

The engine and emission control system covered by this information operate on a combination of vacuum and electrical signals; they are extremely prone to malfunctions due to improper vacuum connections. If a component does not receive vacuum at the correct time, it cannot function when needed. When working under the hood, pay close attention to the routing and placement of every hose.



Fig. 1: The vacuum hoses are usually numbered for easy identification



Fig. 2: Vacuum hose routing-1984-85 carbureted Prelude





Fig. 47: Emission component schematic-1984-85 carbureted Prelude




Hope this helped; TY for using Fixya (remember comment and rated this).

I have the diagram you need if you want me to send it to you. Send me your email address and I will send you the pictures and explanations on how to time it. [email protected]

BEFORE U TAKE THE TIMING BELT OFF PUT THE CRANK SHAFT ON ITS MARK.IF THE CAM MARKS ARE NOT LINED UP THEN ROTATE THE CRANK 180.THEN U CAN MARK THE POSITION OF THE CAM & CRANK GEARS W/A CRAYON,WHITE OUT ECT.AS LONG AS THE GEARS DO NOT MOVE THEN U WILL BE OK.WITH THE OLD BELT ON U CAN SEE THE TIMING MARKS.

You can download the entire manual from www.pdftown.com
Here is the link to the shop manual for the 88 prelude that I used to do my Cam Belt.
http://pdftown.com/Honda-Prelude-1988-Service-Manual.html
Hope this helps...

Hi there. Firstly you need a strobe light, I hope you have one of these. Firstly when the engine is stopped, you need to locate the timing marks on the crank pulley - they are a series of indentations on the crank pulley and you will see the pointer on the crank pulley cover. The largest indentation on the pulley is TDC (Top Dead Centre) and the three smaller indentations are your timing marks. When the engine is at normal operating temperture and idling, using the strobe light, the centre small timing mark should be aligned with the pointer on the crank pulley cover. If it's not aligned, loosen the distrubutor body and turn in the appropriate direction to either advance or ****** the ignition timing. Hope this helps, Scottech.