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**Tony From West Oz** · 2 March 2014, 12:05 AM

Re: Cruiser Just died...

A blockage in the return line will impact on IP performance, especially for rotary IPs.
Some IPs have a sintered brass filter in the return line banjo fitting.

Regards,
Tony

**benjy** · 2 March 2014, 08:49 AM

Re: Cruiser Just died...

Hi Tony, it's not the return line, I took the return banjo off and no fuel comes out the port when running. There's no strainer in there it's under the fuel cut solenoid.

i recently added a pusher pump, I did have a batch of half washed fuel that found its way into the car by mistake a couple of years ago, had no ill effects until now but I'm wondering if the extra pressure from the pusher has dislodged some deposits from this and pushed them into the ip. The stuff I found in the ip strainer looked like NaOH soap (I've been using KOH for a year now). Anyone know of a solvent that will dissolve soap that won't kill my pump?

PS ran a bottle of bio straight to the ip under the bonnet, bypassing the rest of the fuel system so I think the problem definitely is in the ip.

**craigcurtin** · 2 March 2014, 11:01 AM

Re: Cruiser Just died...

Originally posted by benjy View Post

Hi Tony, it's not the return line, I took the return banjo off and no fuel comes out the port when running. There's no strainer in there it's under the fuel cut solenoid.

i recently added a pusher pump, I did have a batch of half washed fuel that found its way into the car by mistake, had no ill effects until now but I'm wondering if the extra pressure from the pusher has dislodged some deposits from this and pushed them into the ip. The stuff I found in the ip strainer looked like caustic soap (I've been using KOH for a year now). Anyone know of a solvent that will dissolve soap that won't kill my pump?

PS ran a bottle of bio straight to the ip under the bonnet, bypassing the rest of the fuel system so I think the problem definitely is in the ip.

Not sounding good - the only thing i could think of would be to force fuel through pump using a pusher pump wired up directly and with the return banjo opened up - hopefully that would force fuel through ?? and flush out anything - i know a number of the other guys swear by ATF as a flush also.

The tolerances in the pump are extremely fine so i do not see how something could get through the strainer and then solidify back in the pump (unless the car has been sitting for a long while unused ?) so you may just have some smallish pieces that are blocking certain areas ?

have you tried pulling the injectors to make sure the blockage is not actually at the return line from the injectors ?

Craig

**benjy** · 2 March 2014, 03:29 PM

Re: Cruiser Just died...

Thanks Craig, tried all that including the ATF flush. Returns from the injectors are ok. Took all the injector lines off the back of the pump and cranked it over, delivery from no 5 is just a dribble while the rest are spitting away normally. Guess I'm shopping for a new pump or an overhaul.

**gilfish** · 2 March 2014, 06:57 PM

Re: Cruiser Just died...

Im definately insufficient in expierience with rotary ip, but could the problem be with the injectors themselves not the ip. White smoke indicates unburnt fuel going out the exhaust, black overfueling etc. good luck with it anyway I am looking at a 105 for my next vehicle.

**benjy** · 2 March 2014, 07:29 PM

Re: Cruiser Just died...

Thanks Gilfish, yep its unburnt fuel but I think it's just dribbling out of the injector rather than atomizing, so not burning, because the ip supply is restricted. Regardless I'm gonna change the injectors as well. No complaints about the 105 it's got 330k on it, never touched the pump or injectors until now, they would have gone at some stage anyway... Only other thing I've had to do outside of the scope of normal maintenance was fix a leaking power steering pump. If u get one u won't regret it - just watch the timing belt interval.

Could have been coincidence, might have just been time was up for the pump but I think a stupid mistake, pumping out of the wrong tank into the car is probably the culprit... Tests ya sometimes this bd caper but I've gotta look at the big picture... Even if shoddy bd was the cause I'm still gonna be waaaayyyyy ahead after I fork out for the parts.

Im looking at a reconditioned pump on exchange, can't afford a new one - anyone got any supplier recommendations? Viton is the first question I will be asking.

**250downunder** · 2 March 2014, 09:13 PM

Re: Cruiser Just died...

Diesel Australia at Slacks Creek are straight shooters. Ask for Guy. He understands the specifics of using Bio and the need for Viton seals.

**Bueff** · 2 March 2014, 09:36 PM

Re: Cruiser Just died...

Originally posted by 250downunder View Post

Diesel Australia at Slacks Creek are straight shooters. Ask for Guy. He understands the specifics of using Bio and the need for Viton seals.

Hey Benjy

+1 for diesel Australia, had my Hilux pump done there, they had an exchange unit on the shelf, which was fitted by my mech in Lismore, brought the old one back, no hassle at all, Guy seems to know his gear. Good luck mate! :-)

**Matt** · 2 March 2014, 11:28 PM

Re: Cruiser Just died...

Ben,

another vote for Guy at Diesel Australia, I have been through a few shops and would go back to him (Guy) in a flash, he will not warranty work if your using Bio, but you already understand your well ahead, he simply cannot predict what some people will do when making bio, which is understandable.

A rebuild will set you back about $1500 that was what mine cost after a dose of fuel bug. Wear is the big issue and then there is incomplete conversion casuing varnishing, so if you make good fuel there is a high chance there will be little wear, allowing parts to be reused. After 330K I think you are up for the top end of costs however.

They quick and honest to deal with and accept issues if they cause them, I had some residual bug somewher inthe pump causing idle issues and they readily accepted this and redid the job, strip down and clean. Very happy with them. Other shops will do all sorts of things like give you rubber seals when you ask for Viton, strip bolts and the list goes on.

I am onto an issue like your tomorrow, it will not start after refitting IP, white smoke but I suspect its something I have doen, so out it comes, check timing and check fuel delivery.

Good luck.

**benjy** · 3 March 2014, 11:55 AM

Re: Cruiser Just died...

Thanks gents taking it over to Diesel Aust later today, Guy was very helpful and they are going to get onto it straight away. Was gonna pull the pump myself but they quoted $200 to remove and refit so I'm not going to bother getting my hands dirty. Pump rebuild will be between $1000 to $1600.

Hope you get your truck going Matt.

**Matt** · 3 March 2014, 01:17 PM

Re: Cruiser Just died...

Thanks Ben, yes Guy is very good to deal with, can be vocal against bio but then again who knows what he sees. My problem is letting the car sit 12 months, gummed rings, there is a degumming (Threebonds) in there now, let sit for 3 days, turn by hand and then after 6 or so days fire it up. As soon as it was added compression started to come up as felt by me hand turning engine over, it took two hands to get over TDC and was felt on multiple cylinders, all good. Maybe just maybe it will get to Michaels next Sat??? On mineral but who cares at this point. its just 40 litres of that in 150K km. Everything else is good.

Best of luck, but you do not need luck, just cold hard cash to pay the bills, so use Bio! Just make sure its very well made.

**smithw** · 5 March 2014, 06:07 PM

Re: Cruiser Just died...

Sorry a bit late, I had the same issue on my toyota estima I have posted the story on here somewhere just can find it. Long story short. fuel filter let go (ryco) and dumped sticky grit in to the IP. the fix, I remove the return banjo bolt (It has a small orfice) and pumped Meths with A petrol fuel injector pump through the IP . In the inlet and out the return into a bucket for 10 mins cranked a few times with the fuel shut off disconnected and pumped out the meth with fresh bio. The was at lest a year ago and it still going well. Theres a vain pump inside the IP that gets sticky and the vains dont move out so no revs.

Ha found it http://www.biofuelsforum.com/threads...ighlight=flush

**benjy** · 18 March 2014, 08:11 PM

Re: Cruiser Just died...

Well she's all fixed, pump rebuild $1320, delayed the holiday for a few days but we still managed to get away. 1600km towing a caravan and beach and bushbashing, had to put in 10 litres of Dino at the end to ensure we'd make it home, almost killed me to have to do that...

Pump was gummed up with the same crud I'd found under the fuel cut solenoid, but most components showed little wear, just needed a good clean out, new seals (viton only) and a new solenoid. Got a bit of a lecture on the use of bio, to which I explained the economics, ie over $20k in front over the last 4 years of use which is what we paid for the car in the first place. Over. $35k if I include the rodeo. I'm happy to accept that I caused the problems and will be looking closely at my process to ensure it doesn't happen again.

it runs like a train now never remember the old girl having so much power so it's all worked out ok. Had a couple of issues with Diesel Aust, their customer service was a bit slack but I'm happy enough with their work.

smithw thanks for the tip I'll have a go at that if I ever encounter this again.

**smithw** · 19 March 2014, 05:58 PM

Re: Cruiser Just died...

hi Benjy I have a theory about that sticky stuff in the pump, as i have 2 other vehicles that didn't have the problem and use the same bio. have a look down the filler neck with a torch. On my estima there is some sort of factory coating on the filler neck and inside of the tank which the bio is slowly removing. I think that could be the mystery sticky stuff.

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