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76

General Car Chat / Re: Omega MV6 recommissioned

« on: 25 September 2020, 20:22:15 »

Mmmm the colour is not ideal nowadays - bit out of fashion, but at the time it was nice. Black recaro leather and telephone headset/Bose sound. Rare manual as well

I bought this car when it was about 1 year old with 8k miles on it. 1st owner was Vauxhall Motors - suspect a demo or staff car. This was from the stealer in Bridlington, East Yorkshire.

I had to sell it about 7 months later due to upsizing our house at the time, so had to liquidate some assets. I sold it to Nidd Vale Motors network Q -  in Harrogate.

A chap bought it from them and kept it ever since, only putting about 45k miles on it over 17 years.

I’ve got the original invoice when I bought it, but spent nothing on it due to short time I had it.

The previous owner has however passed me a full file of maintenance etc including the purchase invoice when he bought it, together with all MOTs.

I contacted DVLA and to cut a long story short bought it back from him. So the V5 shows me as the previous owner 

Certainly a hood history backed up with paperwork and handbooks etc.....

77

General Car Chat / Omega MV6 recommissioned

« on: 24 September 2020, 21:35:11 »

Well finally got S613BNP back on road.

Got an MOT this week, previous one Feb 2013. Will probably tax it from start of October

At 56k miles there’s plenty of life in the old girl.

Getting used to driving a manual is weird after a few years of automatic cars.

Few bits to do on bodywork to make perfect, and refurb wheels.

Champagne & black leather - nice 90s combination 

78

Omega General Help / Re: Changing head gasket - locking tools?

« on: 20 September 2020, 16:44:23 »

Thanks for help

Wondered if it was just a breather pipe, as no jubilee or clip markings on it.

I fitted new cam seals so it’s probable I haven’t driven them in far enough 😞🤔

I’ll look at coil pack during week/when I’ve time.

I have moved  the clip on the throttle cable and I will see if that makes any difference to the stalling/idle - obviously should do (never thought of that clip position).  I did take it off during strip down and just put it back where I thought. I check with my other MV6 and count the rings back so it’s at least same as something that’s running ok.

79

Omega General Help / Re: Changing head gasket - locking tools?

« on: 20 September 2020, 14:37:58 »

I’ve put things together again from my cylinder head gasket replacement and timing kit etc.

There’s no tickover and will stall if not a small amount of revs applied.

Runs rough at moment, but as rain channel/scuttle been off thinking the coil pack had got a dousing now. There was water in rear plug tube on N/S so highly lightly. Just need to get some time to investigate and remove/check/replace it.

More interestingly, I’ve also noticed a plastic (not rubber hose)pipe which is 12mm external diameter and 7mm interior diameter that seems to come up from the bell housing but no location in engine bay. I’ve taped it up for now but should go somewhere 🤔

Holding water pressure which is good.

I’ve noticed a little oil leak that could be rocker cover weeping a little.

80

Omega General Help / Re: Head gasket propably gone

« on: 16 September 2020, 20:44:38 »

Compression test is the best way to see if head gasket has failed.

Many folk say it’s very unlikely to be head gasket with such symptoms , however if compression in one or more cylinders is well down compared to others then that’s most likely head gasket.

I did mine recently and compression in cylinder 1 was about 1/3 reading of others. On strip down head gasket was clearly breached

As others have said, once in there, your‘re looking at replacement of other gaskets, thermostat, water pump, cam belt, tensioners etc, Aux drive belt. Obviously oil & filter change on reassembly too.

Good luck

81

Omega General Help / Re: Changing head gasket - locking tools?

« on: 15 September 2020, 20:58:07 »

It started tonight !! Woo hoo

Bit rough for now but vacuum connections missing on 3 pipes as waiting for other omega to come back so I can see the correct routing . A bit of backfire but I think that’s a build up of fuel etc

Plug leads 2&3 wrong way round on O/S bank, and plug tube 3 on N/S had water in it, due to stood without rain guttering. Took all plug leads off and WD40 up the plug leads, cleaned all plugs, replaced the one stood in water with an old one I kept. (Soaked up water in  plug tube with Kitchen roll pushed down tube  before I removed plug).

Need new plugs I think, vacuum pipes fitted might cure most of the ailments.

82

Omega General Help / Re: Coolant pouring out from rear of engine

« on: 15 September 2020, 20:50:31 »

Could be the coolant transfer pipe at rear which is over the bell housing.

There’s a little seal on that that goes brittle/breaks up. A bit of a pig to get to but if you’ve removed plenum etc should be visible. 2 hex bolts and 1 near exhaust O/S heat shield.

83

Omega General Help / Re: Changing head gasket - locking tools?

« on: 14 September 2020, 15:46:46 »

Posted last missive too quick !

I was thinking of doing the paper clip test to see if any codes came up for any faulty sensors etc.
Appreciate bad timing won’t necessarily give a fault code by its itself.

84

Omega General Help / Re: Changing head gasket - locking tools?

« on: 14 September 2020, 15:42:03 »

Well my old man used to say if it ain’t broke, don’t fix it  - we had good compressions on the N/S bank so thought may as well leave well alone. Knowing what I know now I can strip the thing down pretty quick - the N/S was always the trickier one to do with all the cable tray and coil pack to deal with.

I’m going back through logical “start up” things later in the week ; checking HT leads and right order, spark plugs & cleaning, checking for an actual spark for each pot etc.

I’m going to also check earth straps as the car was only turning over very slowly on the battery  and without a good spin I don’t think it’ll do anything. Could need a good clean - plus I noticed some rot that needs welding (don’t think it’s in that area - but haven’t traced the earth strap down yet so could be manky where it is on the body). I also thought about engine being seized having stood so long but I’ve turned it clockwise several revolutions  with a socket on the crank bolt. I took plugs out to free up the compression and it turned over fine.

I’ll keep you posted - I won’t be beat !!

85

Omega General Help / Re: Changing head gasket - locking tools?

« on: 13 September 2020, 20:01:21 »

Thanks Doc Gollum - I even marked the cams “1” & “2” and took pics of their positions prior to removal and all went back as previous 

I could take it somewhere for diagnostics - might be worth £50/£100 and see what they say. I’ve no code readers and don’t know if any of the sensors are giving right feedback (if at all).

I’ll keep thinking - obviously car stood nearly 2 years before I stripped it so could be something from it been laid up so long.

86

Omega General Help / Re: Changing head gasket - locking tools?

« on: 13 September 2020, 19:24:56 »

Thanks guys  - that doesn’t sound good. I can’t understand it if I have dropped a Bol..ck. - every thing lined up including cam belt markings and tippex markings I left prior to strip down 🤔I

I have only done the O/S head off and head gasket as the N/S compassions we’re all good.

Oh well my plan now is (other than call the scrapman (not) 😄

Check HT leads in correct order
Clean spark plugs
Recharge battery

I must say when the engine was turning over fast(ish) it did try and start. It’s just got so sluggish to try and turn over, as though the battery 1/2 dead (even with jump leads)

One thing that I’ve thought of is the coil pack. Unfortunately my other “classic” occupies the garage so I’ve done all this outside. Obviously when it’s rained, and as the rain guttering is off for access to them rear of engine, the there’s wet got into the coil pack 🤔

87

Omega General Help / Re: Changing head gasket - locking tools?

« on: 13 September 2020, 17:32:19 »

I marked the position of the cam shafts relative to the first pair of shells, and then marked the sprockets to their position on the backplate 🤔

Tried starting it but jump leads getting hot and battery failing. Needs a good kick as it is only wharing over which is like a chocolate fire guard! It did splutter when it had a good turn over but soon battery went down.

Oh well - perhaps need some new jump leads and a new battery.

88

Omega General Help / Re: Changing head gasket - locking tools?

« on: 13 September 2020, 10:49:19 »

Mmm - hope it’s ok 😬, as I tippexed the marks etc before removing so everything should be back where it was before strip down.

I’ll get a good jump start and try it that way later

Fuel was bone dry before so hopeful no stale stuff. As you say it’s getting so far but no tell on if it’s getting to injectors or indeed if there’s a spark.

Father in law coming over this afty so can check for spark if there’s 2 of us.

89

Omega General Help / Re: Changing head gasket - locking tools?

« on: 13 September 2020, 07:59:05 »

Well - got car all back together. New gaskets all round, new drive belt and backplate/tensioner etc.

Drained disgusting brown sludge (aka old oil) and filled with fresh. Filter will have to wait as been sent a spin on when in fact it’s an insert/canister one. Put 5ltr of new fuel in.

Went for a start yesterday - it turns over but in fairness battery sluggish so didn’t expect too much.
Slackened fuel unions off to see if fuel getting to engine which it is.
 
It does however backfire from the plenum and pushes the rubber bung out (the idle speed valve one) 🤔

One thing I’ve not fitted yet are 3 vacuum pipes (the little diameter plastic ones) - I’ve another MV6 at a body shop so can’t check where they go - but guess wouldn’t stop it starting - just perhaps lumpy.

happy with the timing as did this to the death before reassembling.

Car has been stood 2 years outside and also wondering about moisture/damp in coil pack.

Hopefully something silly - any obvious check points I’m missing ?

90

Omega General Help / Re: Bolting back on Coolant pipe

« on: 03 September 2020, 19:53:59 »

Well I’ve lost the original hex bolt now it’ll have to be a “normal” one.

I’ve got some blue tack to stick on the bolt with a small socket

See how I get on tomorrow