Hey all,

You may remember a while back, some one was asking about how you get access to the in tank fuel pump, with the "80 litre" tank. Well, if i wanna get access to it, i might as well start by pulling off the front quater panels! Nah, it isn't quite that hard....I found out that the "80" litre tank was an option offered (from the factory, aparantly) by volvo when my car was released. (along with the "Volvo" labeled momo steering wheel and boss, and some neat mags :o).) Well, basically, the extra lump i have in my boot amounts to an extra 23 litres of fuel. The carpet is moulded, etc, around this lump (completely different mat in the boot to ordinary ones!), the tank is steel, and connects through the intank pump access cover in the boot (the tank completely covers this....), this all joins together where the filler tube (under the car) actually turns into two separate pipes! One goes up, through the access hatch in the boot, the other into the ordinary tank... Now i know why i could get 750k's out of a full tank in the city! :o) But i wanted to check my in tank pump, pickup, etc, but, volvo nearly laughed when i told them i wanted to do it.... i mean it is doable, but, probably easier to jack the car up on stands (with an empty tank) and drop the main tank out, b/c to get the secondary tank out, you have to be a triple jointed handed person with 6 fingers, 3 hands, and also, there must be a full moon, and you have to hold the antenna with one hand while this whole procedure takes place....well, not quite that difficult, but volvo reckons that to get the tanks out of the the cars, you first have to pull the whole back seat out, take out the plastic backing thing witht the ski tube hole, just to get enough access...once your worn out from doing all this, you can then jump into the boot (hell, it's big enough to jump into!) and pull out the tank (after going under the car to undo the filler tube connections) and lift it free. Then you just have to access the tank.....simple. Putting it back in, is a reversal. Oh, and don't forget all the vent tubes running along the back of the back seat/front of the boot for venting the extra tank!

Moral of the story, if you have the extra tank (please write if you've found an easier way)sell your car if you suspect the intank pump!!! Bye for now!

Not all 700s are created equal. In the North American market, all IRS equipped sedans ('88+ 760, 780, 940SE, 960) are equipped with a plastic 80 litre tank. All live axle cars (740,940 sedan and all 700/900 wagons) come with a plastic 60 litre bottle. No options.

I have a 1983 760 sedan,1986 740 wagon,

First, I think your really funny!

Take the 4 bolts out,lift the aux tank up(just enough

to disconnect the fill/vent tubes)Going back in on the

other hand is not so good, but it is possible.Thats when

you have to go from below,having a flexable wife helps!

I had to remove my sending unit assembly, to add 2-3/8" metal fuel

lines,I brazed them in, then the others that were holding

the sending unit fell out, so I had to braze them all.

I'm installing a 350small block & 700r4 tranny,the Holley

pro-jection system needs big lines not 1/4" & 5/16".

I have been wondering if that tank would fit in to a Wagon?

Man you're reading my mind. A 350 with a B&M blower would rock my world. Please let me know the hickups you encountered. Ie. What did you do for motor mounts and trans mount. What angle did you set the engine and trans at. I would think you could mod a s-10 trans mount. What about a 4 core radiator, these cars have cooling problems as it is. Once again how about a s-10 4.3 4 core can it be shoehorned with a good electric fan. A/C should be solved by a dealer add air system. Pullys and belts? If you have clearence issues a 89 or so Chevy van uses a short nose water pump and close to engine pullys. You can use a 78 or so Monte Carlo power steering pump. A serpentine would be my preference but sometimes clearance is a issue. Was it for you? I have a stiff axel so power is not a problem. Is there room for an aftermarket tank like one from Summit Racing. I don't want to give up my third seat but that is the answer if necc. there is plenty of room to cut the floor and weld a cover plate over it to stop the boom effect. I am a Chevy man from way back. I love my wagon but at 149k it is having some issues like turbo hoses oil blow by and the such. I am going to milk it to 200 I hope but need to be gathering parts.

Help a brother out. Do you have any .jpg pics you could send me?

Thanks

Hey Paul,

Thanks for your response! So, you are putting in a v8? I've been told that it is easier to stick them into diesl 760's.......(stronger front suspension). How hard is it to whack one in? How much work? How much cost? (important bit!!). I've heard that putting in a 350 engine is the best thing anyone could do for a volvo if you want serious power........anyways, see ya all round!

Hi Bill & Aaron

I'm putting my old 350 in my 83-760 sedan,the wifes is the 740 wagon,

The 350 is only mild,9.5:1, flat tops,2nd step RV cam,pink rods

30 over,performer rpm intake,700 Holley pro-jection system.I built

this engine for my 3/4 chev,I'm tired of driving a truck,and Volvos

are So! comfortable.I gave the truck a buddy,minus the engine.

I started this at the end of Oct,just on the week-ends.

I've had to change the engine componets for clearance,Morosso oil pan

from a vega,performer intake. I'm making the mounts in the next few

days. I understand that the diesel rad sould cool this engine,after

looking at a 302 install on the web.Only 150lbs increase in weight,

the car sits well( I had the engine in the hole siting on the cross-

member)I can use the factory rear cross-member for the tranny mount.

The car sits at work,10feet from my tool box,while I was waiting for

my oil pan,I wired almost everything,installed a battery box in the

boot, ran 1/o gauge to the engine room,made the harness for the engine

that part was easy.Install a IPD dash cover. Cleaned up the leather.

mounted 150 watt driving lights in the air dam(there from my truck).

MY oil pan is here, so theres work to be done.

PB