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View Full Version : Cambelt Settings for 1.4 (8v)engine.


tyfaenor
12th April 2010, 09:20
Hi All.

Just about to change the cambelt on my daughters 1.4 Furio (8v). Got a Haynes manual, but the manual and the current timing hole settings on the cam sprocket seem to conflict.

Tried checking through the forums and couldn't find the answer - or i am simply being Numpty.

Problem is that according to the manual, the cam sprocket hole and crank hole should line up when "No 1 cylinder is at TDC on its compression stroke".

From what seems to be happening with the sprocket hole and followers, I'm not sure what position the followers would be when in that position. I think they should both be loose (longest cycle between inlet and exhaust opening), but when the cam sprocket lines up, the rockers are between the inlet closing and the exhaust opening on the cylinder closest to the clutch, which I think is Bottom dead centre (BDC). The opposite end cylinder 4 (at the cam end) has loose tappets, which I think is the correct position for the compression stroke. (NOte I hadn't found the 'correct'; flywheel hole at that time).

Information here seems to conflict as to which is No1 and No 4 cylinder. Haynes manual says it is at the flywheel end. Some threads here have suggested both. Anyone know for absolutely sure?

Finally found the pesky flywheel locking hole. Now, locking the flywheel has the sprocket at 7 o'clock directly opposite the 2 o'clock position and the tappets loose on the cylinder closest to the flywheel. Seems like this is TDC for the cylinder closest to the flywheel but the cam sprocket doesn't line up. The fact that it is 180 degress out makes me wonder if it possible for someone to put the sprocket on back to front?

For info - locating the hole for the flywheel lock seems like an impossibility. On this 2001 Furio, the Oil filter is in the way, severely restricting access. I thought I had found it, but I was poking around in the Timing access hole - the correct hole is much smaller and tucked right into the corner of the block (thanks to some of the excellent threads on here). Try an Allen Key on a piece of tube to get it down there....

Hopefully someone can come to my rescue and stop me chucking spanners around and tearing hair out. It really must be simple, no????

tyfaenor
12th April 2010, 16:37
Bump.

Anyone able to help please?

Ashcollings02
12th April 2010, 17:51
if its running fine etc just mark it all up before u take the belt off mate tbf when i done my furio i just took care etc and it didnt even move one tooth so u might be lucky but id mark it all before it comes off just as easy . even my vts when i done him both top pulleys didnt move 1 little bit or the bottom.

Ashcollings02
12th April 2010, 17:53
i thought tht no1 cylinder was cambelt side mate dont hold me too it but 90 percent sure

saxo-parts
12th April 2010, 17:56
tippex on crank pulley and lock the cam if its running ok, don't worry too much about locking the crank,just don't turn it.

Liam_
12th April 2010, 17:58
Cylinder 1 is at the gearbox end of the engine. When you lock the flywheel, the locking hole in the cam pulley should line up for you to pop a drill bit in. As you correctly stated, at that point cylinder 1 will be at TDC.

Was the flywheel definitely locked? You might need to turn the engine over a few times before it slots in?

Failing that, if the car runs fine, lock the cam pulley off and mark the crank and block with tip ex so you know its position.

tyfaenor
12th April 2010, 21:25
Thanks for the answers.

In the end I went for it. Locked off the flywheel and cam sprocket when 'cylinder 4' at the cam end had the loose rockers and 1 was at the top of it's exhaust stroke. Not as the haynes manual stated. But that's how it was and it was running fine and the only way to get both the cam sprocket and flywheel to lock at the same time.

Changed cambelt, tensioner and water pump, put everything back, rotated a few times and checked, then rechecked the locking positions and belt tension, all was fine. Started up briefly and it sounds OK.
As the light has gone, I haven't had time to drain and flush the water system - tomorrow's job.

Seemed darned easy, once I had completed it. Hardest part was finding the timing hole for the flywheel. I wouldn't think twice now about doing another Cambelt, if I had to.

Thanks to all who helped out here.

fastroadkid69
13th April 2010, 12:36
gad you gotit sorted, you just have to ber with it lol.