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MECHANICALS With a 30 year-old automobile, there will always be discussion here - maintenance, modifications and mechanicals.

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  #1  
Old 11th September 2018, 08:31 PM
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Default Starting a car after 6 months idle

Hi All,

My 6.9 has sat in the garage for about 6 months without being started. The suspension is down on all 4's and the battery is flat.

It was serviced just before Christmas and a new battery was fitted, so hopefully it will charge ok.

Are there any specific precautions I should take starting an M100 after being idle for some months?
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Old 12th September 2018, 04:42 PM
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Default Re: Starting a car after 6 months idle

Watch out for cam lobe rust, but maybe unlikely if in a warm climate after a shortish period.

Pull the plugs & add a little oil to each cylinder. Crank with plugs out & fuel pump /ignition disconnected until you get oil pressure. Reinstall plugs & start on a few cap fulls of 2 stroke mix.

Drain the fuel tank, change the filter & add fresh fuel. Disconnect fuel feed st divider & run pump until fresh fuel comes out. Clean fuel screen, reassemble & youíre away!
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01 Ford AU 5L (Deep Blue)
89 560L#322020
88 500L#451660-P
88 420L#422477-P
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88 420L Euro#-P
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86 560L#235896-P
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Old 12th September 2018, 04:43 PM
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Default Re: Starting a car after 6 months idle

Oh check for chain stretch while you have the rocker covers off...
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01 Ford AU 5L (Deep Blue)
89 560L#322020
88 500L#451660-P
88 420L#422477-P
87 420L#324309-P
87 420L#-P
88 420L Euro#-P
88 420L#-P
86 560L#235896-P
79 6.9#5541 (Red Bull)
78 6.9#4248 (Skye)
79 6.9#3686 (Moby Dick)
78 6.9#1776 (Dora)
77 450L#067010-P
75 450L#028414 (Gold Nugget)-P
57 Buick 73A (Titanic)
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Old 12th September 2018, 04:51 PM
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Default Re: Starting a car after 6 months idle

I'd say just start it, it's 6 months not years. I've left my 6.3 for that long and it's started with no problem. M100's are pretty much bomb proof.
They also don't have the cam chain tensioner issues M116 and M117 do.
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Old 12th September 2018, 06:02 PM
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Default Re: Starting a car after 6 months idle

If you choose to be pedantic Iíd turn it over by hand a couple of times before cranking by the starter...
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Mark

01 Ford AU 5L (Deep Blue)
89 560L#322020
88 500L#451660-P
88 420L#422477-P
87 420L#324309-P
87 420L#-P
88 420L Euro#-P
88 420L#-P
86 560L#235896-P
79 6.9#5541 (Red Bull)
78 6.9#4248 (Skye)
79 6.9#3686 (Moby Dick)
78 6.9#1776 (Dora)
77 450L#067010-P
75 450L#028414 (Gold Nugget)-P
57 Buick 73A (Titanic)
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Old 13th September 2018, 02:47 PM
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Default Re: Starting a car after 6 months idle

Quote:
Originally Posted by abl567 View Post
I'd say just start it, it's 6 months not years. I've left my 6.3 for that long and it's started with no problem. M100's are pretty much bomb proof.
They also don't have the cam chain tensioner issues M116 and M117 do.
Iím with Ant.
Start away and after itís warm take it for a decent drive.
It should also get up slowly, but certainly within 5 minutes.

Let us know how you go 😉
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Old 17th September 2018, 08:08 PM
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Default Re: Starting a car after 6 months idle

It actually started quite easily. I had to replace the battery because it would not charge, so yesterday I replaced it and put some fresh fuel, but other than that I turned the key and it fired into life. I didn't see how long it took for the suspension to come up - I just left it to idle for a few minutes, came back and it was up.

The fun began when I put it into reverse and it didn't move. A litre of gearbox oil later to replace the puddle on the floor and it drives again.
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Old 18th September 2018, 08:52 AM
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Default Re: Starting a car after 6 months idle

The amazing resilience of a good 6.9
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1978 W116 690SEL # 3312
1985 R107 500SL AMG
2000 W208 CLK430 Coupe
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Old 18th September 2018, 04:46 PM
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Default Re: Starting a car after 6 months idle

Great news! Drive n enjoy!!
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Mark

01 Ford AU 5L (Deep Blue)
89 560L#322020
88 500L#451660-P
88 420L#422477-P
87 420L#324309-P
87 420L#-P
88 420L Euro#-P
88 420L#-P
86 560L#235896-P
79 6.9#5541 (Red Bull)
78 6.9#4248 (Skye)
79 6.9#3686 (Moby Dick)
78 6.9#1776 (Dora)
77 450L#067010-P
75 450L#028414 (Gold Nugget)-P
57 Buick 73A (Titanic)
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