Think I might have a new clue as to why my felicia 1.9D is running strangely - sometimes it seems to be starved of fuel :confused: then suddenly kicks in with full force. :eek:

Today i noticed what appears to be a missing linkage on the engine side of the fuel pump. A lever that easily turns is connected to nothing - looks to me like a bar should connect it to the throttle lever (attached image) - anybody have any clue what this lever is for, and whether i can get the part to connect it to the throttle lever?

attached is a picture of the absence...

Mark

i wouldn't call that a mystery lever, it's the main fuel delivery lever, there should be a small linkage on there

You're right, there should be a linkage there. Mine came off at one end a couple of years ago and I was able to get a new one at a diesel specialist for about £4. The new one just presses on over the ball joints at each end. He told me to make sure it was adjusted to the same length as the old one as they're fitted and and heat sealed at the factory.

I knew something wasn't right for a few days beforehand as I'd been getting 'lumpy running' on the overrun.

ah, thanks - so that explains a lot! - I'll try and find a replacement - do we think the length will be standard for all pumps of this type, or do we think it's a 'tuned for each individual pump' sorta thing (in which case i'm screwed, not having the original...) could anyone measure... pretty please...

thanks

Mark

they will be roughly the same on all of them, it's not critical as such but get it as close as you can... you could force both levers as far right as they go and then measure the distance between the two ball studs

As Tom says. If the engine improves, but you want it set up right, take it to a Bosch or TurnerTune place.

thanks everyone - i got the part today from a diesel place - they said to set it up they'd have to take the pump off and do it on a bench - maybe 3hrs labour, at £65/hr + vat....

they also didn't agree with teflontom's description of "main fuel delivery lever" - they thought it was something like "light load timing advance" (i can't quite remember) - but in teflontom's defence they didn't seem super-sure..

not really noticed any big difference having put the link on, will have to try various positions.

could anyone with a 1.9D tell me what position their mystery lever is in (ie hands on a clock, compared to vertical) when the throttle is at rest.

pretty please!

yes it does advance the coarse timing too, the light load/idle adjustment is the vacuum operated cable under the main throttle cable

My local mechanic had a go at this today when he had changed the glow-plugs - he noticed that it sounded like a misfire if the revs were held around 1000, and adjusted the rod length until it sounded smooth at this speed - car is running much nicer now, though still a little bit starve/surge-prone.

Still interested to know what angle other members' 1.9D mysterious levers are at when throttle is at rest...

Mine drives just like your description but the lever's there and always has been. I can't check the angle as the missus has taken it away for the weekend. I've been wondering whether this pause and surge is down to injectors. I notice a sooty spot on the ground wherever the car has been started or pulled away from a stop so maybe it's just a sign that things are getting a bit choked up. (109,000 miles)

I was told the same as you about setting the pump up - a bench job. Incidentally, all the adjustable parts in mine have blobs blue paint on them. I imagine this is to stop tampering or mark any drift but I've no idea if this is factory or a later adjustment as there are no receipts.

mine has a blue paint blob on the throttle-position-reading-pot - so i guess it's a factory paint-pot.

Yeah I guess injectors are strong possibility for the starve/surge behaviour - or maybe the EGR is going mad for some reason - I heard that can produce basically any wierd symptom!

where did you get this? as mine is broken!