106 nad fueling?? issue FIXED'ish

[Chris_90]

Right I believe it having issues with fueling on the 106 might not be fuel related tho will see what you guys think.

So about a week ago I started having issues with the car being down on power at full throttle, first thing I thought was Fuel filter so next day replaced that, And I needed to fill up so filled the tank to the Brim with Veg Oil/petrol/two stroke mix then that night it got so bad wouldn't pull up hills was mega down on power now! So I had to pump some Fuel out to get to the in tank filter when removing the pick up point the filter wasn't attached to the pick up point was in the bottom of the tank I fished it out cleaned it up and re-fitted it before fitting the pick up point again I pumped out 25liters of the fuel mix and then fitted the pick up point, went and topped it up with derv after 5mins iof driving it felt loads better so I was thinking it was dodgy fuel.

So tonight at work it's starred again pulling better than it was but still struggling massively, I've looked every were for leaks carnt see any. I've used quarter of a tank of fuel so I went to top it up with derv again so now must have 25 liters+ of derv to the mix of Veg Oil etc, and it's still the same down on power at full throttle (being a nad your a full throttle alot) so it's making it undeliverable.

So I'm thinking of replacing the pipe from tank to pump see if that fixes the issue may air getting in or a blockage because of the tank filter falling off. If this doesn't work I'm thinking pump or injector failures??

All so what makes this more strange is when I'm at full throttle struggling I can see the car smoking/hazing in the lights of the cars behind so it seems to be injecting the fuel or am I wrong?

This is really pissing me off now hope some one can shed some light on it!

Thanks in advance

---

Edit also might be worth mentioning it's running the 306/405 Bosch boost compsator style Fuel pump.

[Jenkosowls]

Have you ran the pump out of a separate can of derv yet?

[Piggy]

Sounds like its bogging to me

[Chris_90]

Have you ran the pump out of a separate can of derv yet?

No...... We'll I tried but I couldn't find any were to fit the bottle so I could take it round the block to see if it made any difference.

Sounds like its bogging to me

That's exactly whats happening, but it's never happened since I put the Bosch on only started in the last week

[Chris_90]

It's starting first turn of the key to, so surely that means there is no air getting In?

Whats causing it all full throttle?

[THE_Liam]

Duff injector maybe?

[cully]

Whats causing it all full throttle?

lack of fuel!
my old 106 used to be awfull for bogging at WOT turned out the in tank stainer was full of fat from runing bio/veg oil

[Chris_90]

Whats causing it all full throttle?

lack of fuel!
my old 106 used to be awfull for bogging at WOT turned out the in tank stainer was full of fat from runing bio/veg oil

So what's causing the lack if Fuel? As cleaned in tank strainer (wasn't even bad) very few tiny bits in it, Fuel filter changed.

So only other thing to change is the fuel pipe it's self from front to back? But will annoy me if I replace that and it's still same

[cully]

blow the lines through with an airline you may have a restriction in an elbow or even a kinked pipe
veg is quite corrosive to rubber, is turns it to a black mush over time and this plugs lines nd filters
maybe the granade is past it best
bad biodiesel also dislikes copper and brass it eats it over time

[andywhy]

Check your air filter as well maybe? And check the throttle is opening to full when you have the pedal hard down.

[Chris_90]

Right decided to go see how much fuel pipe would cost me at £1.50 a meter though worth a try so bought some, replaced it with the fuel grenade off the 205, how the hell your supposed to run fuel pipe between tank and floor is beyond me even dropping tank an inch still couldn't do it so Que bodge style!



It now feels ok'ish it's felling better than before so that's an improvement! But true Test will be how it gets on at work tonight so I will update tonight after I've done 100miles at work.

[Chris_90]

It's still doing it FML!!

[Chris_90]

So it's died twice tonight both Times I had to pump the hand primer for it to go again leading me to believe air getting in some were, so bypassed hand primer and fuel filter it now goes like fu*k! .... When I say fu*k I mean it's back to its normal power so I have an air leak between the fuel filter and hand primer, will remove it all tomorrow and find the leak, hope that's the end of it, it's done my head in for the past week all this trouble for air ingress

[andywhy]

Hand primers themselves are known for it, so don't rule that out either. I'd start with replacing the pipe and clamps.

[Martin306]

between fuel filter and primer?

Pipe will be cracked where it goes onto the fitting right at the engine/housing. no doubt. Vibration cracks them there and the metal pipe that the rubber goes over has a sharp edge.

If not, there's a relief valve on the back of the housing, the seals in them are rubber and they dry out. There's a slight possibility your fuel mix has attacked it as well.

[Chris_90]

I'm running an inline filter due to the standard housing letting air in when I first got the car, I've removed the hand primer and fuel filter and now it runs ok so I've got various bits of pipe to check tomorrow when I get chance.

[Piggy]

Get a decent truck filter inline, some come with primers built in too

[Chris_90]

Get a decent truck filter inline, some come with primers built in too

Not bothering with this cos as long as 205 ok when it's on road this will be going to scrappy

[Piggy]

Nooooooooooo!!!

[Chris_90]

We'll found a split in a pipe cut it out and it was ok for 15mile now it's started again so gonna remove one thing at a time and use the process of elimination to find the problem

[Chris_90]

We'll thought I would update this think I've got to the bottom of the issue/issues

So things I replaced

Fule pipe front to back
Hand grenade
Fule filter (twice)
Pipes between grenade and filter and pump.

Seems to be loads better now, I filled up with Veg Oil yesterday 95% Veg 5% petrol and it seems loads faster than it did before and seems faster than it was on derv? Guessing it's the New pipe front to back might be slightly bigger so there's no restrictions. Would Defo recommend any one running veg to fit a thicker pipe really does make a difference!

[Martin306]

veg probably attacked the standard lines? probably had a block or summat from all the veg washing the crap from over the years?

[Chris_90]

veg probably attacked the standard lines? probably had a block or summat from all the veg washing the crap from over the years?

No idea tbh the Fule line runs though the floor from what I could see so didn't pull it out to look at it.