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Author Topic: No wonder I've had lumpy starting  (Read 29528 times)

Offline Julian

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Re: No wonder I've had lumpy starting
« Reply #75 on: December 21, 2012, 09:47:15 PM »
Well done Nige, nice to hear a happy ending.

If you fancy a greater and more frequent challenge, get a Disco!
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Offline Glycer-rides

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Re: No wonder I've had lumpy starting
« Reply #76 on: December 21, 2012, 10:29:49 PM »
Nice one, Nige.
Did you ream out the bore to get rid of any residual carbon 'glue'? (I just use a greased up drill bit).
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Offline nigelb

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Re: No wonder I've had lumpy starting
« Reply #77 on: December 21, 2012, 11:00:36 PM »
Quote from: sedir-recylg on December 21, 2012, 10:29:49 PM
Nice one, Nige.
Did you ream out the bore to get rid of any residual carbon 'glue'? (I just use a greased up drill bit).

To be honest..once the glow plug tip had been removed the bore looked quite clean. However, there was a bit of carbon sitting on the piston crown which I could see with the camera. This was removed with the vac.

The spring will be changed when the weather is better. Hopefully either tomorrow morning or Sunday morning. I have the new spring and some compressors but the rubber cup at the top is worn. The local VW dealer does not have them in stock. I need to check the next major town's VW dealership to see if they have them. Failing that then the worn one goes back on and gets replaced next weekend when they are back in stock.
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Offline nigelb

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Re: No wonder I've had lumpy starting
« Reply #78 on: December 21, 2012, 11:01:34 PM »
Quote from: Julian on December 21, 2012, 09:47:15 PM
Well done Nige, nice to hear a happy ending.

If you fancy a greater and more frequent challenge, get a Disco!

I really don't think I have the time for that sort of project Julian ;D
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Offline Rotary-Motion

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Re: No wonder I've had lumpy starting
« Reply #79 on: December 23, 2012, 08:40:27 AM »
well done nige...

 ;)
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Offline McDuff

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Re: No wonder I've had lumpy starting
« Reply #80 on: January 12, 2013, 05:40:28 PM »
Why do people overtighten the glow plugs knowing they hace to come back out - checked mine today in preparation for the cold snap, glow plugs came out ok but the small nut on top (holding the bus bar in place) had been tightened so much the threads had gone. Had to try and snap it off, without snapping the plug, good job I had a replacement set. Had to snap as there is no room to cut with anything
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Offline therecklessengineer

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Re: No wonder I've had lumpy starting
« Reply #81 on: January 12, 2013, 06:55:13 PM »
Quote from: nigelb on December 16, 2012, 07:49:48 PM
Is there any data out there that states the typical pressure generated in a 1.9SDI engine when running...just so I know what would need to be exceeded.

I know I'm late to this party, but thought I'd answer this.

Idling pressure won't be much beyond the compression ratio (20-30bar). Peak pressure will be encountered at full load - somewhere around the 200 bar mark.
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Offline Tony

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Re: No wonder I've had lumpy starting
« Reply #82 on: January 12, 2013, 10:47:12 PM »
200 bar!  Makes me want to tighten my glowplugs  :o
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