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#1
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85 300d running rough after startup.
My 1985 300d runs very rough after start up. Will run this way for about 30 seconds then smooth out. I donot have trouble getting it to start. Starts quickly on the first glow plug cycle. I adjusted the valves thinking that it may have something to do with it. All valves were tight but no change after adjustment. I also cleaned the banjo bolt thinking that may help. No change. What could this be? Thanks
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#2
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Check all glow plugs with a ohm meter, a good plug should read .8 ohms.
If they all check out fine then you might want to remove them and apply 12V to each one, making sure they glow properly. Sometimes the ohm test can be misleading. I suspect its a simple glow plug issue.
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1985 300TD Turbo Euro-wagon 1979 280CE 225,200 miles 1985 300D Turbo 264,000 miles 1976 240D 190,000 miles 1979 300TD 220,000 GONE but not forgotten 1976 300D 195,300 miles 1983 300D Turbo 175,000 miles http://i42.photobucket.com/albums/e3...e485-1-2-1.jpg |
#3
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^ Agreed.
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83 SD 84 CD |
#4
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You should have seen come change if you adjusted it. Are you sure you are doing it right?
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'85 300D Cal 280,000 miles '14 GLK 350 60000 miles |
#5
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I believe I adjusted the valves correctly. 10mm intake 35mm exhaust. Followed the DIY off dieselgiant. Glow plugs are probably the answer. I got this car from my uncle and he replaced 3 glowplugs and said he could not reach the back ones. I have yet to replace the last 2. I will change them this week and see if it makes a difference. thanks guys
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#6
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I've never noticed much change in idle smoothness after doing valve adjustments. What I do notice is easier starting. And if the rough idle isn't caused by the valve clearances then there wouldn't be much change.
I also would suggest checking the glow plugs. You might also look into the rack damper bolt. Do a search here about it.
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Andrew '04 Jetta TDI Wagon '82 300TD ~ Winnie ~ Sold '77 300D ~ Sold
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#7
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Quote:
You may be getting air in the system as well, from say a cracked hose, a faulty primer pump, leaky return lines, etc.
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RRGrassi 70's Southern Pacific #5608 Fairmont A-4 MOW car 13 VW JSW 2.0 TDI 193K, Tuned with DPF and EGR Delete. 91 W124 300D Turbo replaced, Pressure W/G actuator installed. 210K 90 Dodge D250 5.9 Cummins/5 speed. 400K |
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