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121

Omega General Help / Re: Manual conversion

« on: 25 February 2011, 21:19:04 »

I just have a quick question regarding the Ignition timing Retard... I know that to some of you this will be common knowledge........

Ignition Timing Retard
Unplug the engine ECU and remove the connector from its hood (1 screw)
Locate the Bk/R wire on pin 42, cut off as far from pin 42 as possible (can do this further up the loom if preferred) then solder to one of the thin Brown wires and tape joint

Can someone let me know why this has to be done? Is it because the ignition setup is slightly different from the auto to manual setup?

Thanks in advance al answers greatly appreciated.

122

Omega General Help / Re: help required please

« on: 11 September 2010, 22:25:38 »

It will be the crankshaft sensor. What was the year of the donor car? Did you use the ecu from your car or the donor car?

123

Omega General Help / Re: speedo trouble

« on: 16 September 2010, 18:55:46 »

I had this problem a little while ago and found that one of the pins behind the dash clocks wasn't touch te socket enough so any form movement to the clocks it would then make the speedo clock 'bounce' all over the place. All I done was to move the pin out a little more, carefully though, so It would make a proper contact, now I have a stable speedo needle no more bounce.

124

Omega General Help / Re: Cambelt help!

« on: 16 September 2010, 19:12:55 »

Just to let you all know, I re-done the crankshaft back to it's timing mark then moved it a further 15 degress to a neutral position. Moved the camshafts round by 1 revolution, in turn, to there rective marks on the camcover backing plate, then checked with the camshaft timing gauge and all back to spot on and locked with cam locks, must point out that I did lock the crankshaft with the locking tool, moved the crankshaft back to TDC then re-fitted the belt clockwise not anticlockwise.
  Once I had done this and tensioned the belt I then turned the engine over, by hand, for 2 revolutions until the cams were back in alignment, which happened first time  . Engine did not lock once so a nice pat on the back for me plus first time I had fitted and timed a V6 cambelt by myself and I did not use the V6 dvd.

 So three cheers for me,
Hip, Hip Horay!
Hip, Hip Horay!
Hip, Hip Horay!

125

Omega General Help / Re: Cambelt help!

« on: 05 September 2010, 13:42:07 »

Ok thanks McB, I will give it a go. Wish me luck. 

126

Omega General Help / Re: Cambelt help!

« on: 05 September 2010, 13:32:10 »

Ok thanks thats great. What if the cams are already lined up with the cutouts on the back plate, do I still need to refit the belt and move back 60 degrees then lock it all up and follow your procedure?
Just to clarify so I get it right.

127

Omega General Help / Re: Cambelt help!

« on: 05 September 2010, 13:13:26 »

I am getting a little confused. Let me just check some facts.

1. When you originally fitted the new belt, you lined up the crank at TDC, locked the crack then locked the cams before removing the old tensioner and belt. Correct

2. You then fitted the new belt (we now know incorrectly) before turning the crank and finding it stopped by something (piston touching valves). Correct

3. You then wound the crank back and removed the belt? Did you remove the belt with the crank at TDC and the cams not locked? If so you will now have bent valves most likely.

[/highlight]
Cams were Locked Crank back to TDC. Moved crank back by hand NOT turning over by key (as engine is out of car)

128

Omega General Help / Re: Cambelt help!

« on: 05 September 2010, 12:54:47 »

OK. Just to clarify, you don't move the timning back 60 degrees to fit the belt. Only because of the situation you are currently in. Once the timing is -60 you can then safely let the cams move. That is where you remove the belt having slackened it off. BUT WATCH YOUR FINGERS.

then line up all 4 cams THEN turn crank back to TDC.

Now refit the belt starting from the crank and going anticlockwise. You will be left with slack on the left side as you look from the front, that is when you finally fit the tensioner to take that up.

Must confess I didn't do that Oooppss!! Now the belt is off is it best to put the belt back on then start again?

129

Omega General Help / Re: Cambelt help!

« on: 05 September 2010, 12:29:09 »

inlet manifolds still attached?
Nope, inlet manifolds removed.turned over fine before old belt was removed?

Engine turned over manually before cambelt was removed.

if the timing did not move between removing and refitting the belt.. i would check for a foreign object in the chambers.

Engine has been covered for the entire time so no foriegn objects plus the inlets have been covered as well.

130

Omega General Help / Re: Cambelt help!

« on: 05 September 2010, 12:27:44 »

Would be very easy if I had the car here.

When you say you turned the crank and it stopped daed, I presume you didn't try to force it all? On that assumption, it sounds as if you have got the belt on wrong somehow. If you haven't forced teh crank,. it is probably no harm done, but now the fun starts.

You will have to effectively strip the belt off and line evert thing up correctly. BUT you will have to be very careful to get the pistons to neuatral, ie all away from TDC (cannot remember the crank position for this, so best checked with a straw through teh plug holes until you gat all about the same hieght). Then relining the cams - dangerous bit, followed by correct alignment of the whole lot again.

IF this is what you need to do, then procedure would be to backwind the crank as above to neutral without forcing anything, Then releasing the timing belt by undoing the tensioner. This is VEY dangerous and you MUST keep all fingers away from the cam sprockets as they will or may suddenly spring around and nothing will stop them. They will very easily remove a finger, so be warned! Just because they haven't moved doesn't mean they wont!

then having removed the belt you will need to rotate each cam via the sproket nut clockwise until lined up with the timing marks on the back cover plate, before moving its pair carefully to match. then inserting the locking took. This is agin VERY dangerous and where you are most likely to take a finger clean off. UNDER NO CIRCUMSTANCES get you fingers between the pair of cam sprokets. I cannot emphasise this enough!!!

One one pair is lined up, repeat for the other bank. Once all 4 cams are correct, refind TDC (doesn't matter which stroke as there is only one TDC until cams join in!) and lock crank. Now you can start with the belt again. The belt is fitted from crank, ANTI clockwise so crank, cam 4, cam 3, pulley, cam 2, cam 1, tensioner and finally crank./ The slack should only be on the tensioner side. So, so slack at all on right side of engine as you look from the front.

Once tensioner is on, check the alignment with the spec tool. It should be more or less right with a few thou. If so, remove the locks and rotate twice clockwise, relock crank and check with spec tool again. Any adjustments are done with either the tensioner or top guide depending on what needs moving in which direction.

Once done, remove locks and repeat until spot on.

ANY resistance at all and stop.

If you have any worries about tjhis at all, do NOT go any further until Marks DTM is back tomorrow. he will excpalin it better than I have.

Bottom line is getting all 6 pistons to a position where the valves cannot contact them. Once there you can effectively cut the timing belt off and not harm the engine. BUT I must say again, the cams may or may not decide to spring around. they give no warning and absolutely will not stop for a finger! ASUME THEY WILL MOVE!

the difficult part is getting the cams to their correct position. You get one, and whilst getting its pair, the first one springs around. Persevere. I have done it and it certainly works.

HTH

Thanks Mr Mcb, sounds like that could be the problem, put the belt on clockwise not anticlockwise plus didn't move the crank back 60 degrees so this is very likely. Just to add, when the crank stopped I didn't force it any further I just stopped and moved it back. Lets hope this works.

131

Omega General Help / Re: Cambelt help!

« on: 04 September 2010, 23:13:47 »

inlet manifolds still attached?
Nope, inlet manifolds removed.

turned over fine before old belt was removed?

Engine turned over manually before cambelt was removed.

132

Omega General Help / Re: Cambelt help!

« on: 04 September 2010, 23:00:32 »

Are the spark plugs still in? Could it just be the compression that you are fighting?

How is the engine supported? Is the clutch cover fouling on the engine stand?

Plugs still in, Engine on a 205ltr barrel and it's an auto and the torque converter is clear of any obstructions

133

Omega General Help / Re: Cambelt help!

« on: 04 September 2010, 22:58:57 »

The engine is from another mig. Engine was perfectly sound except the cambelt needed replacement due to not knowing when it was last changed. Engine turned over manually before cambelt was removed.

134

Omega General Help / Re: Cambelt help!

« on: 04 September 2010, 22:31:55 »

Yep. everything checked.

135

Omega General Help / Cambelt help!

« on: 04 September 2010, 22:10:51 »

Just a brief discription to let you know whats happened.
Engine out of car
stripped down to cambelt
turned engine over by hand to get camshafts and crankshaft to alignment marks. Inserted cam locking tools into cam sprockets, locked cranshaft with crankshaft locking tool, released tension from tensioners then removed belt.

Now I have come to put all new rollers and tensioners on and refit with new cambelt. Camshafts and crankshaft still in alignment, fitted rollers and tensioners then fitted cambelt as per instructions, then it was time to turn engine over manually to see if any further adjustments are needed, got to about 15 degrees of turning over and it stopped solid. I did not proceed any further but turned the engine anticlockwise back to the original position.
 What has happened?
Why did it happen?
Nothing was moved or touched before new cambelt kit was fitted.
What happens now?
Any ideas? Can anyone help with this confusion? I am baffled as to what has/went wrong. Was hoping to get the engine back into the car this weekend.