Bosch 69466 Length vs OEM (Fuel pump)

[ahh911]

Maybe some help?
I've bought a Bosch replacement, 69466 made in Czech pump, low side adaptor is adding dimension vs the original integrated low pressure side coupling. Red arrow.
It's overall 1.25 inches longer and looks like I'd need to cut the low side fuel hose down, or have access or restriction from the banjo side. I don't like either much. I'm replacing as maintenance so I can wait for the correct length.

Anyone install this? Any tips/regrets/issues? I can return. I guess tighten banjo first, then move pump to the left and connect to rubber hose? It looks like the banjo would come close to touching the car frame once installed without cutting some low side hose length? Testing around while fuel drips on me is not worth extra 50 bucks if I can buy the right size pump or am assured this will work easily. (this one was already x2 the price of the other bosch pump as it said oem fitment, and it was made in Europe)

EDIT*** Direct Fitment, no modification necessary of any kind, plenty of cable and clearance***

Thanks,
Phil
81SC

[BoxsterGT]

The 12mm Supply hose from Tank to Pump is 90mm, and this allows an extra inch or a little more.

Place the pump in its mount and see if you have enough room.

Alternately, a Bosch 69458 should fit properly, and it is available from ---zon for a little over $100, with free shipping.

Len

[ahh911]

Thanks Len,
Once I disconnect the old pump, I'm not much in the mood for testing out fitment, the whole gas thing makes me want to get it done in one shot, but I guess I just have to brave it
There are several other options in terms of bosch pumps, but what I'm wondering about is if they might all have switched to this type of design, being 1.25 extended. I say that because the picture for my pump was like the original. Ordering another bosch only to find it's the same setup would be a pain in the butt. I also don't want to cut the 12mm ID hose, if I was desperate I would, but lying on my back with gas dribbling out of the clamp and me cutting it would be crummy work. Also, if this pump fails and I want to swap in another and it's the oem size? I'd be running in circles, off to buy fuel hose, etc... I've asked a seller if the pump they sell is like the pictures posted, and so far no reply, I don't think they really know as the supplier, Bosch probably changes things on the fly and they would have to have someone in the warehouse check, and that will be prone to miscommunication.
Phil

[BoxsterGT]

The "oem" version you have looks to be for the 930 model, like this....



while the standard 911SC and Carrera use this...



...with a formed end as part of the Aluminum shell. These are the most popular Bosch pump they make, and the reason they are now so reasonable in price.

If your 12mm supply hose is original you should replace this with E-85 rated hose that will last for the lifetime of the vehicle.

If you empty the tank before beginning this work you should not have gasoline dripping on you.

Just my 2 cents of advice.

Len

[ahh911]

Thanks Len,
12mm would be the ID of the fuel line. Should be able to pick some up.
The turbo pump while similar in construction looks a little shorter in the hex part, whatever that might mean.
I did check directly with bosh on the other parts number listed on the box and it was okay for a 930/16 911, which is the engine I have. But this was a European Bosch website.
The reason I'm sticking with this pump for now, is that it's Czech made, not that I know much about the quality there, but the thread cutting and quality inside the fuel pump is very nicely done... we'll see.

Phil

[ahh911]

Update:
Direct fitment, no modification necessary anywhere, I was over worried about the gas, turns out the flat vice grips with tape and a near empty tank held back any but a few drops of gas. No cutting, wire was long enough, and there is a nice access for a 17mm wrench point to counterhold the banjo nut tightening, no messing about near the contacts or needing a thin 17mm wrench. Sounded whisper quiet while I was checking for leaks. The 1981 fuel feed from the tank looked in great shape inside and out, re-used. My manual states that ethanol can be used. Maybe another reason for the sc. Pump looks nice and well made.

Phil

[BoxsterGT]

So the Supply Hose from the Tank fits as original?

This is good news. Your Feed Hose looks in good shape as well.

Excellent results.

These wonderful cars need to be preserved for generations to come.

Len

[ahh911]

Thanks Len,
Yes the original 12mm ID 90mm long fuel line fit without a problem. It looked inside and out in excellent shape, but the 81 911 at least came from the factory ethanol tolerant according to the manual so no need to swap out. What I like about this one is that you can put your wrench to counterhold very nicely where shown and really clamp down without mucking about near the terminals.

I swapped it out as there was no history on this part, but once I removed the last pump it became clear that it has been disconnected at least because two washers were found on one side of the electrical connector instead of nut, split washer, washer connector washer base of fuel pump. So it was probably replaced already, oh well.

I went with the more expensive European version just for that, hopefully it will last another 20 years or more. Another thing is that as demand dwindles, more 3rd world countries will begin making these and the quality may drop, so I picked one up now. Same thing for my alternator.

Phil

[ahh911]

Pump is 1.5 years old, 10k miles and suddenly noisy today, from inside cabin thought the a/c front fan hadn't turned off, so pretty loud in cabin too.


Rubber mounting still correct.
10 Amps current draw measured.


Is this toast already?

[berndtj]

I wouldn't drive anywhere with a noisy FP. Mine made a fair amount of noise when it failed (though it didn't give me much warning). I installed a Dansk FP from our host, and it's been working great for the past year, though I haven't driven 10k miles yet

[ahh911]

Yeah
For interest sakes:
Added fuel additive on this fill up, maybe 200 miles ago.

In the garage now. What's interesting:
Amp meter hooked up.
Pump noisier: 9.9 Amps.

Flick the pump on and off,
Pump quieter: 9.6 A.

The correlation is very strong between amps and noise, must be the bearings or whatever the shaft runs on is shot. The noise difference isn't night and day, but is easily detectable and either mode can occur at random when power is applied and remains constant until power is removed.

Have you ever had an older aquarium power head pump and if you plug and unplug it sometimes it makes noise and then you plug again and it goes quiet? (and not air trapped) It's like that when the shaft and bearings wear. It seems similar.

Phil

[Schulisco]

Phil,

I own also an '81 SC US model.

All I could found out is that te 69466 equals to Bosch no. 0 580 464 203, but this no. is unknown in my Bosch catalogue (link below), The car reference list on some car parts websites shows that this pump is appropriate for

AUDI
AUDI Quattro (85) ( 07.1980 - 07.1989 , 162 - 306 PS)
PORSCHE
PORSCHE 924 Coupe ( 11.1975 - 08.1989 , 125 - 209 PS)
PORSCHE 928 Coupe ( 09.1977 - 07.1991 , 241 - 320 PS)

so these are bigger engines (except the 924), no tech data given there, but I suppopse that the pressure the pump delivers could be too much for the SC. And therefore this pump could be too big for the SC which could explain the length differences.

When I go the opposite way and refer to the Porsche Parts Catalogue for the car, it tells the Porsche part number for the fuel pump from 1980 and later models is 911 608 102 00.

Here you find a 2017/2018 Bosch catalogue for electrical fuel pumps, there the Porsche number is referring to Bosch part no. 0580 464 126. I purchased this pump and it fits plug'n'play. Length is 184,4mm = 7,26inches
This will also deliver less pressure and fuel than yours which fits better for the CIS.
Also it will be cheaper for sure. If possible I would return it and get the smaller one. Driving with a too high fuel pressure could be bad for the CIS...ok, the fuel system pressure regulator will cover this, but this can also fail sooner or later if works constantly out of spec.

Thomas

[ahh911]

Thomas,

Thank you for taking the time to look this up. I am going to look for the box it came in, then maybe more numbers will be available.

If there is too much pressure I will replace with appropriate design.

I was looking for current consumption spec, but that must be rated to restriction and volume, which I don't know. Lesson to me is to check the current (Amps) of the fuel pump when new to compare against at a latter date. Maybe 10 A is okay for this model, don't know.

Maybe the fuel treatment released some sludge, maybe the temperature outside (29C), but I thought that the car detonated, and the normally 45% duty cycle has jumped up to 52%, even while driving at 2k, 3k rpm, that's very unusual. I think something is up, but it's hard to say, again maybe the fuel treatment is playing with the mixture, but I doubt that.

Phil

[ahh911]

Thomas I found the box.

Under the sticker there was another sticker:
69902
0580464203

I think you're right! Several websites have it listed for the cars you wrote:

Phil

[ahh911]

Bosch in Australia has it
https://www.bosch-motorsport-shop.com.au/200l-h-5bar-in-line-fuel-pump~104802


Specs are very close as I have for current.
I see ~ 10A, not sure of the pressure though. Maybe I imagined the whole thing? The pump did seem louder when it was very warm out, now it's quiet? I don't know.

Is this compatible? I really don't know what to look for in terms of flow rate and head?
If I click enough buttons on the web the parts it superceeded on some website do say 911 cis with our years..

[Schulisco]

I found a german website showing more technical data:

https://www.ezt-autoteile.de/motor/kraftstoff-system/bosch-benzinpumpen/72938/bosch-kraftstoffpumpe/benzinpumpe-0-580-464-126-198-l/h

The 0580464126 delivers 198l/min @5bar pressure, current 8,7A. So your pump is indeed technical comparable to the original pump except the larger size.

Originally Posted by ahh911

Pump is 1.5 years old, 10k miles and suddenly noisy today, from inside cabin thought the a/c front fan hadn't turned off, so pretty loud in cabin too.
[..]
Is this toast already?

Might be. A noisy fuel pump is not good. How old is the gas in the gastank? Does it contains ethanol? The storage capability of gas with ethanol is very limited. The ethanol attracts water and the gas can desintegrate. Corrosion in the gas tank creates sludge at the bottom, which the fuel pump sucks in and damages it, mostly its running noisy then before it dies.
Conclusion: Have a look inside the gas tank and the CIS if there's sludge. If so, you have to clean up the system, at least gas tank, fp and fuel filter. Toprevent such damages use a fuel stabilizer at any fillup. And store the fuel (with ethanol) without fuel stabilizer no longer than 6 months, with fuel stabilizer up to a year and more, depending on the fuel stabilizer. More details: https://www.bobvila.com/articles/how-long-does-gasoline-last/#:~:text=Pure%20gasoline%20in%20a%20car's,for%201% 20to%203%20years.
To be on the safe side use gas without any ethanol if available. Here in Germany the Aral ultimate 102 is the only gas available without ethanol. All other high octane designer fuels available here contain ethanol from 5-10%.



Thomas

[ahh911]

Thomas,
I don't use ethanol, car has been running 600 miles over the last 2 weeks.
Pump made grrr noise yesterday with higher outdoor temperature.
Current consumed is slightly lower than spec for 4.5 bar, but that was after the car sat for 20 minutes so the pump might have cooled down.
Today it's cooler outside and the pump is whisper quiet.

I think the high temperature (30C/86F) outside and very large demands I put on the engine yesterday might be exposing a future failure.

I am certain the pump was very loud yesterday, today whisper quiet.
Also, around 3k rpm yesterday, after I heard the pump making the sound I pressed the gas medium hard and it just didn't feel right, fell flat and sounded weird, but I didn't persist, out of worry, so there is always doubt. I'll wait and see on the next very hot day and stay within 100 km of the house till then.

I had read one gentleman mentioned that when he put some sort of fuel treatment it caused his cis fuel pumps to fail in his 911s and he thought it was because the treatment loosened some gunk from the fuel tank and was lodged in the pump. This tank had a fuel treatment added (first time in two years), coincidence?

Phil

[83_Silberpfeil]

Joining the discussion here RE: Bosch Fuel Pump. I saw "Bosch 69466..." in the thread title, so thought this is most appropriate place to inquire.

Seems very confusing, and triggering thoughts of doubt and uncertainty on my end --- is this the right part, is it going to work? What do experienced Pelican members here think?

This is what is in my car (now dead FP):
Bosch 0 580 254 967 --- with black exterior/casing

This is what I ordered:
Bosch 0 580 464 203
the website showed the foto of the old black FP above (0580 254 967), so I thought this is most likely the correct replacement.

This is what arrived today:
Bosch 0 580 464 203 ; 69466 --- on the box label

This is what is stamped on the FP itself:
Bosch 0 580 464 151
Inside the box there was included: one fitting (threaded male | fuel hose), one check valve, and two waschers

The old PF on the car ; dead


What I ordered and arrived, box label


What is stamped on the FP casing itself

[PeteKz]

Lemme say it again: Put a damn inline filter between the gas tank and the fuel pump!

[Otter74]

I don’t have the time ATM to look up my thread or the part number I have, but I will add that i went through this do-i-have-the-correct-fuel-pump confusion last fall when I replace the pump on my ‘80 SC, as the part I received from pelican did not have the same part number as what was shown on their site. They sent me another one just in case, but I eventually confirmed that what I received was apparently the superseded part number, it is functionally the same, and has been working normally on my car since.