Can I pull a trailer with my 740?

  • Thread starter Thread starter Allen Lillie
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A

Allen Lillie

I am looking at buying a tent trailer, which is a pretty low profile
trailer, weight aprox 2900 lbs, equipped with electric brakes.

From what I read, the towing capacity of my 89 740 (nonturbo) is 3500 lbs.
Is this realistic? I would love to hear from Volvo owners who have pulled a
trailer.

I also have a 94 850, same towing capacity but more horsepower. Anyone out
there have experience with the 850 for towing?

My concern is that I don't want to be sloggin up a grade at high rpm, doing
45 mph each time I come to a hill. Can a Volvo pull the trailer and
maintain freeway speeds?

I look forward to hearing some tales!

Allen
 
In an earlier contribution to this discussion,
Allen Lillie said:
I am looking at buying a tent trailer, which is a pretty low profile
trailer, weight aprox 2900 lbs, equipped with electric brakes.

From what I read, the towing capacity of my 89 740 (nonturbo) is 3500
lbs. Is this realistic? I would love to hear from Volvo owners who
have pulled a trailer.

I also have a 94 850, same towing capacity but more horsepower.
Anyone out there have experience with the 850 for towing?

My concern is that I don't want to be sloggin up a grade at high rpm,
doing 45 mph each time I come to a hill. Can a Volvo pull the
trailer and maintain freeway speeds?

I look forward to hearing some tales!

Allen
Click to expand...


You need to be concerned not only about performance, but also about
stability. If the trailer is too heavy relative to the towcar, it can
sometimes induce uncontrollable snaking motions - many of which result in
accidents.

In the UK, a good rule of thumb is that the total weight of the trailer
should not be more than 85% of the *unladen* weight of the towcar. Limits
imposed by car manufacturers are often higher than this, because they tend
to ignore the stability considerations!

In the case of your 850, I don't know the exact unladen weight - but would
hazzard a guess that it's not much more than 2900 lbs - so that your trailer
would be approaching 100% of this rather than the recommended 85%. Having
said that, we don't use electric brakes in the UK - and I don't know whether
the recommendation would be different if we did. If, for example, you could
apply the trailer brakes without applying the towcar brakes (can you?) you
may be able to recover from a snaking motion.

Equally, I don't know the unladen weight of your 740 - but I assume it is
higher than the 850. It would have to be over 3400 if you wanted the trailer
to be within the 85% recommendation.
 
My dad has pulled 2000+ pounds with a 740 (85', 8 Valve engine, overdrive
automatic, 114hp) a 740 16 Valve (153hp, OD auto), and a 960 (201hp, OD
auto)... Obviously the 960 was the best tow car, he said the 16 Valve was
too unflexible to tow properly, that the old 8V was more well suited, but it
was slower due to lack of power... He said it strained the motor, but if you
took your time, and didn't use the A/C, or set it lower it was okay.

His main concern was the braking... after 1500lb Volvo recommends electric
assist.
 
Allen Lillie said:
I am looking at buying a tent trailer, which is a pretty low profile
trailer, weight aprox 2900 lbs, equipped with electric brakes.

From what I read, the towing capacity of my 89 740 (nonturbo) is 3500 lbs.
Is this realistic? I would love to hear from Volvo owners who have pulled a
trailer.

I also have a 94 850, same towing capacity but more horsepower. Anyone out
there have experience with the 850 for towing?

My concern is that I don't want to be sloggin up a grade at high rpm, doing
45 mph each time I come to a hill. Can a Volvo pull the trailer and
maintain freeway speeds?

I look forward to hearing some tales!

Allen
Click to expand...
A 740 may tow up to 1500 kgs (3300 lbs) in the Netherlands, provided the
trailer has it own brakes. The heaviest load I ever towed with a 740
turbodiesel was a Jaguar XK140 on a large trailer. No problem. But note: the
Netherlands is as flat as a tabletop.
Hans
 
Hans Vlems said:
pulled
A 740 may tow up to 1500 kgs (3300 lbs) in the Netherlands, provided the
trailer has it own brakes. The heaviest load I ever towed with a 740
turbodiesel was a Jaguar XK140 on a large trailer. No problem. But note: the
Netherlands is as flat as a tabletop.
Hans
Click to expand...

Turbo would also help quite a lot as well I would assume, though the
standard B230F does a remarkable job for what it is, the cars make good use
of the power they have.
 
Hi,

I towed a 1200 lb. trailer here in Pittsburgh with a lot of hills and it did
it just fine. I did have electric brakes and with your much heavier weight,
I would not consider trying it without them. This engine seems to have a
lot of low end torque and did surprisingly well.

I would check out towing with the 850. If memory serves me well when I did
research before, front wheel drives can't pull as much weight probably
because you are taking weight off the drive wheels.

Good luck and have fun.

Cheers,
Randy
 
This is the reason we bought a year end clearance 93 960 instead of the 1994
850 turbo wagon. Didn't trust the front drive for towing.
 
Hans Vlems said:
A 740 may tow up to 1500 kgs (3300 lbs) in the Netherlands, provided
the trailer has it own brakes. The heaviest load I ever towed with a
740 turbodiesel was a Jaguar XK140 on a large trailer. No
problem. But note: the Netherlands is as flat as a tabletop.
Click to expand...

A lovely country from the air, as I saw flying into Amsterdam for a
layover to Paris. From such a flat country, how is it that you
produce so many good climbers in pro bike racing? l'Alpe-d'Huez is
practically orange...
 
I am looking at buying a tent trailer, which is a pretty low profile
trailer, weight aprox 2900 lbs, equipped with electric brakes.
Click to expand...

What the hell sort of "tent trailer" weighs 3000 lbs ?!

Sorry, but I'm not going to comment (even though I've done a fair bit
of heavy towing, and I tow with my 740). You're in America, and you
guys are just _crazy_. You tow insane trailer weights and you put all
your faith in electric brakes. I'm having none of it.


Volvo's own recommendations are 3,300 lbs for the basic car (and speed
limits probably depend more on local rules). Rather more if you limit
the speed and tweak the car.

If it's an auto box, or it's hot, fit an oil cooler. I know Volvo
don't require this until top loads, but it's a damn good idea anyway.

If it's a large trailer (wind-wise) or it's heavy, then fit a
snake-damper. And fit one that works, because many of them don't.

Another word of advice. Be careful of self-levelling rear suspension -
It can hide an unsafe nose weight. Just because the tow vehicle
manages to level itself out doesn't give you an excuse to run with a
badly balanced noseweight.
 
http://www.foldingtrailers.com/folding.asp

They basically go from 1300lb for the smallest, with no brakes to around
2800lb for the big ones, with brakes.

We have one that is 1800lb, unbraked. They have a reasonable tongue weight,
as they are balanced quite well. An average guy can pick up the tongue and
manuever the hitch to the ball on the towbar.
 
Dear Allen,

As a fervented camper, from the rather flat Holland, I have already quite
some experience in the French Alps. Please change my KG's into LBS's for
your own use.

The 740 is a greate puller. Don't expect 120 Km/hr going up a hill with 90
degree turns, but you'll be one of the eassiest ones driving up.

The volvo is very famous for it's pulling power. It's not noted driving up
an highway-hill. It's the small mountain roads it takes as nearly unloaded
that gave it its reputation.

I drove my 740 from 220K Km until it died on 750K+ Km. Mike F. already gave
me advice in this newsgroup years ago on this car. (Nice to see you're still
okay Mike! Keep up the good work).

The 740 was a better turner and puller than the V70 I'm driving now.

For loading, pay attention to the following:

Put the biggest weights on the axes. Also diffuse over car and trailer. U
DEFINATELY want weight on your tongue, not on the rear. Ideal would be a
weight of 75Kg's weigt on the tongue after loading the trailer. Devices
against "snaking" (or as we call it: Siccoring) ussually don't work or hide
wrong loading. Whatch your speed and keep your distance.

In case the engine might run hot, going up a real steep hill, for god's sake
DON'T shut of the engine! Stop where you safely can, keep the engine
running, open the hood, DON'T tough the reservoir cap! and turn your
interior heating and fan on max. (you might want to open your windows at
this point!). Also if you have an automatic use the "3" or even the "2" gear
position, to prevent continiously shifting up and down.

Don't speed downhill! Always drive a hill down at the same speed you would
drive it up. Don't brake continously. Use your engine brake (shift down into
lower gear and let the engine help you brake. The engine wil rev up slowly.
When going to fast, use your brakes a couple of seconds and repeat the slow
revving up of the engine again.)

Check tire pressure. When driven heavy load or long distance, pump 'm on 2,5
instead of 2,3. Also check your trailer's tires. Are you slighly
overloading? Give it's tires the correct tension or + 0,2.

Never heard of electric brakes. Do they regulate their braking power or is
it just "on" or "off"?

Relax, your driving a tank. Drive it like a tank, normal speed, super power.
Down as fast as up (responsible) and up as fast as down (strong car!). Or
get a ferrari and drive it like a ferrari (but don't load it like a tank!)

Have a nice holliday.

Frank
 
They are very hard to overheat. I remember one road trip as a kid, my father
pulling our tent trailer up the mountain chain in Virginia with the old 740
GLE 16-Valve. Car in drive 2, A/C still on. The thermostat started to climb
to 2/3s from 1/2, and steam (or smoke....) started to come from the
vents.... windows were then opened, A/C switched off, and the temps quickly
dropped back down... car still pulling uphill. The A/C was switched back on,
on the downslope.

Our 960 can pull our 2000lb trailer on a 30 degree C day in drive L with the
A/C set to 21 celcius, on a 14 percent grade and the temperature stayed
firmly planted at slightly over 1/2 (went back to 1/2 on the downslope).
Speed was 45kph, max allowable was 60 up the mountain (with reductions for
corners, tho here they don't go euro style with hairpins and other sharp
turns).... We passed many pulled over vehicles, mainly minivans and
motorhomes which were overheated, only half way up. The only other car
towing a lot of weight (for its size) we could see having no real problems
was an old aircooled VW van.... Of course it was doing about 20kph up the
hill, we passed it before the grades got very steep (on the foothills) but
we could see it wind its way up the mountain from the lookout. Most other
people were stopping at the 'lookout" areas on the way up, if they were
towing.
 
I have a 1985 760 Turbo and pull a small Coleman 8 ft. pop up that is about
1000lbs. unloaded. With gear it probably adds another 200 lbs. With my wife
and I and other gear in the car is another 500lbs being conservative (we aren't
that fat!, lol) for a total of 1700lbs. It does fine uphills no problem. My
max weight is 3300 lbs. I wouldn't want to tow a trailer that weighs more than
1500lbs or so. Don't forget that for most tow weights you have to add the
weight of anything in the car, including passengers, small kids, dogs and gear.
This can quickly put you over your limit. My car sags a lot in the back and I
put on air shocks and the tongue weight is only about 130 lbs. or so. If it
were me, I wouldn't tow something that weighs almost 3000lbs.
 
I've towed 5500 lbs with my 81 244 with a B19A engine!
This was not for a very long distance and it was a "mistake" as the gravel
suddenly poured out of the dump truck into the trailer! I was amased at how
good the little engine managed. It still pulled from 2.5 K i 3 gear. (that
was the fastest i went...) Most volvo engines has very good low end power
wich is what you need to pull heavy loads. On the other hand towing that
much even with a trailer with it's own brakes is a bit scary. Braking is
VERY slow.... The 91 940 (B230FB) i have now will pull 3000lbs even for long
trips quite easy.
 
I have a '87 740 that I used this summer to tow a 1500 lb. tent trailer I
borrowed. Not counting the bikes on the racks and the totally loaded back of the
wagon. It did amazingly well not sagging even with the lowering coils I have. I
don't have a brake controller to run the trailer brakes but with a little
planing had no problem slowing and stopping even a few times when a unforeseen
photo-op showed up. The only problem I had was climbing one pass. We had to
slow way down to keep it from over heating. With the heater turned on we could
pick the speed back up and not cause any problems with traffic. I have pulled
some very heavy loads with my other trailers and not had a problem. The turbo
sure makes a difference though.
Good luck towing.
Chris
 
Yep. Has a frame, just like a 240. Now, the new stuff - all unibody junk
you can't really tow with.

As for trailers - check THIS out! It was originally made for motorcycles,
but the large version is - slick:

http://www.quicksilvertrailers.com/

475 lbs. Sleeps two and has a self-contained kitchen. This type of
design is far superior, IMO, to a typical "tent" trailer. Lighter,
weatherproof, and under 1000lbs with gear, cooler and equipment.
http://www.quicksilvertrailers.com/peanut.htm - electric brakes and other
options are available.

http://home.centurytel.net/edevold/index.htm - a MUCH better made trailer.
This is slick - nice options. Half the weight of the tent trailer.
It makes me wonder what they make the tent trailers out of. For 2800 lbs,
you can get a 16 ft Airstream or simmilar fully enclosed trailer.
Riverside makes a 13 ft trailer as well - 2300lbs.

http://www.gorving.ca/manufacturers/rvtypes.asp?MID=T_Trailer&tit=TT
Nice list of makers. I'm not much of a fan of tent trailers.
 
Joseph Oberlander said:
Yep. Has a frame, just like a 240. Now, the new stuff - all unibody junk
you can't really tow with.
Click to expand...

240/740/940 is all unibody, from the underside they all look quite similar
even aside from the slightly different suspension designs. Are the FWD cars
that much different from the bottom aside from the obvious?
 
James said:
pulled a



240/740/940 is all unibody, from the underside they all look quite similar
even aside from the slightly different suspension designs. Are the FWD cars
that much different from the bottom aside from the obvious?
Click to expand...

My 240 wasn't unibody. When did they change this?
 
Joseph Oberlander said:
My 240 wasn't unibody. When did they change this?
Click to expand...

I dunno, we've got a number of 240's ranging from '79 to '86 and they're all
unibody's. Frame rails are integral to the floor pan and all that is welded
one piece with the rest of the body. The front fenders are the only
removeable body panels aside from the doors, trunk and hood lids. I was
under the impression the 140's were as well as all the rest back to at least
the early 50's. Most american cars had a separate frame much later.

A non-unibody is something like an old (and possibly new) pickup truck,
where the entire body can be removed from the frame and drivetrain.
 
Those are pretty trick little trailers. Since I am into streetrodding I like the
teardrop style. However in the NW camping with 3-5 people they are not terribly
practical. The extra room of Coleman is really nice when you have a rainy evening.

Chris V
 
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