240 timing belt busted

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bildabob

My 88 240 gently coasted to a halt recently and I discovered that the
timing belt had busted. No nasty crunchy noises were heard from the
dying engine. But I have been told that the engine is now beyond
economical repair. And yet I discover on other Volvo sites that this
may not be the case and some owners have even effected roadside
repairs! All opinions will be considered please.
Bob :?:
 
bildabob said:
My 88 240 gently coasted to a halt recently and I discovered that the
timing belt had busted. No nasty crunchy noises were heard from the
dying engine. But I have been told that the engine is now beyond
economical repair. And yet I discover on other Volvo sites that this
may not be the case and some owners have even effected roadside
repairs! All opinions will be considered please.
Bob :?:
Click to expand...

I have an 88 240 which experienced the same unfortunate event. It did no
damage whatever to the engine, and I've been told that (at least for
this model) a broken timing belt will -never- cause damage to the valves
or head. I had my local shop replace the belt and it's been fine ever
since. I'd be very impressed by anyone who can effect a side-of-the-road
fix for this problem!
 
BakersT wrote:
........I had my local shop replace the belt and it's been fine ever
since. I'd be very impressed by anyone who can effect a side-of-the-road
fix for this problem!
Click to expand...

A side of the road repair could actually be easier than done in a garage
(with poor lighting, or with a trouble light for added light). The
sunlight can provide lots of illumination. The tools are not the issue.
The issue is enough light to see the timing mark on the crankshaft
"pulley". Just some tools - AND a nail to keep the belt tensioner in
place while putting the belt on ...

Naturally, I assume (in my climate) that the work at the side of the
road would be done when the temps are above +10C :-)

Ken, Canada
 
Tmac-100 said:
BakersT wrote:
.......I had my local shop replace the belt and it's been fine ever



A side of the road repair could actually be easier than done in a garage
(with poor lighting, or with a trouble light for added light). The
sunlight can provide lots of illumination. The tools are not the issue.
The issue is enough light to see the timing mark on the crankshaft
"pulley". Just some tools - AND a nail to keep the belt tensioner in
place while putting the belt on ...

Naturally, I assume (in my climate) that the work at the side of the
road would be done when the temps are above +10C :-)
Click to expand...


The last 240 timing belt replacement I did was out in my driveway using
basic hand tools. It could be done on the side of the road if I happened
to have a socket set in the car.
 
bildabob said:
My 88 240 gently coasted to a halt recently and I discovered that the
timing belt had busted. No nasty crunchy noises were heard from the
dying engine. But I have been told that the engine is now beyond
economical repair. And yet I discover on other Volvo sites that this
may not be the case and some owners have even effected roadside
repairs! All opinions will be considered please.
Bob :?:
Click to expand...


North American market 240s all have non-interference engines, so a
broken belt will cause no damage. The 16 valve motor used in a few of
the 740s is a different story.
 
I was afraid someone would suggest the timing belt "roadside repair" would
involve a handy pair of pantyhose ("tights" in the
UK).............................

Andy I.


:
:
: The last 240 timing belt replacement I did was out in my driveway using
: basic hand tools. It could be done on the side of the road if I happened
: to have a socket set in the car.
 
bildabob said:
My 88 240 gently coasted to a halt recently and I discovered that the
timing belt had busted. No nasty crunchy noises were heard from the
dying engine. But I have been told that the engine is now beyond
economical repair. And yet I discover on other Volvo sites that this
may not be the case and some owners have even effected roadside
repairs! All opinions will be considered please.
Bob :?:
Click to expand...
This has been thoroughly examined over the years. I suppose the concern
comes from Gates saying the engine is interference
http://www.gates.com/part_locator/index.cfm?location_id=3598 but probably
the top level expert to appear here (Paul Grimshaw, author of The Gothenburg
Bible) listed the clearances with all available cams; even with the hottest
cam available it is definitely non-interference. In addition, although
crashed engines are legion in alt.autos.honda (where the engines are
definitely interference) I have never seen a post that related a crashed B23
engine.

Mike
 
Michael said:
I suppose the concern
comes from Gates saying the engine is interference
I have never seen a post that related a crashed B23
engine.
Click to expand...

ISTR B200's (8 valve flat head, combustionchamber in piston design) are
interference
 
bildabob said:
My 88 240 gently coasted to a halt recently and I discovered that the
timing belt had busted. No nasty crunchy noises were heard from the
dying engine. But I have been told that the engine is now beyond
economical repair. And yet I discover on other Volvo sites that this
may not be the case and some owners have even effected roadside
repairs! All opinions will be considered please.
Bob :?:
Click to expand...
its a simple job as your engine hasn't the interference design .cost me
$100au dollars took very little time . the twin over head cam engine is
the problem one the 240 is easy .
 
Many thanks to all who took the trouble to answer my query. Perhaps i
should add that the 240 in question is for the UK market and ..it sez
on the engine plate.. a B200E model. :!
 
bildabob said:
Many thanks to all who took the trouble to answer my query. Perhaps i
should add that the 240 in question is for the UK market and ..it sez
on the engine plate.. a B200E model. :!:
Click to expand...

In that case I have no idea, but I'd try putting a new belt on and see
how it runs.
 
James said:
In that case I have no idea, but I'd try putting a new belt on and see
how it runs.
Click to expand...

Pretty pointless, given that this is an interference engine- without a
headswap
 
bildabob said:
Many thanks to all who took the trouble to answer my query. Perhaps i
should add that the 240 in question is for the UK market and ..it sez
on the engine plate.. a B200E model. :!:
Click to expand...

Ahh... a check of the valve clearances will give good clues as to the extent
of the damage. Any that are suspiciously wide indicate a bent valve.

Mike
 
My 88 240 gently coasted to a halt recently and I discovered that the
timing belt had busted. No nasty crunchy noises were heard from the
dying engine. But I have been told that the engine is now beyond
economical repair. And yet I discover on other Volvo sites that this
may not be the case and some owners have even effected roadside
repairs! All opinions will be considered please.
Bob :?:
Click to expand...

I don't think you can do anything to an 88 vintage volvo non-turbo 4
that would make it beyond economical repair, including lubricating it
with carborundum suspended in nitric acid.
 
The 240 engine is a non-interference design, which means that even when
the valves and pistons get out of their correct relationship nothing
will hit and nothing should be damaged.

A shop which tells you otherwise doesn't know what they are doing
visa-vis older Volvos. 850, 960 and newer all indeed can have massive
internal damage from a failed timing belt.

If you are not prepared to DIY the belt replacement, make sure that
whoever does it is someone who works on Volvos all the time. You don't
want anyone learning at your expense.

John
 
John said:
The 240 engine is a non-interference design, which means that even when
the valves and pistons get out of their correct relationship nothing
will hit and nothing should be damaged.

A shop which tells you otherwise doesn't know what they are doing
visa-vis older Volvos. 850, 960 and newer all indeed can have massive
internal damage from a failed timing belt.

If you are not prepared to DIY the belt replacement, make sure that
whoever does it is someone who works on Volvos all the time. You don't
want anyone learning at your expense.

John
Click to expand...


He said this is a B200E, is that still non interference? I'm not
familiar with that engine since we never had it over here.
 
Hi, maybe this will help answer some of the questions:



Description

a..
b.. B200E,B230E: fuel injection high compression version
General Specifications

Engine Year CC Fuel System HP (SAE) @RPM LB-ft (SAE) @RPM CR
B200E 1985-
1986 Bosch K jet 117 6000 117 3000 10



Tune-Up Specifications

Engine Year Idle RPM Spark Plugs Type Plug Gap (in.) Timing BTDC @ RPM
Valve Clearance Cold Warm Cranking Compression (PSI)
B200E 1985-
1986 W6DC 0.030 10@ 0.014 - 0.016


It's all I could find.
Good luck "bildabob".

Andy I.


: John Horner wrote:
: > z wrote:
: >
: >>
: >>> My 88 240 gently coasted to a halt recently and I discovered that the
: >>> timing belt had busted. No nasty crunchy noises were heard from the
: >>> dying engine. But I have been told that the engine is now beyond
: >>> economical repair.
: >
: >
: > The 240 engine is a non-interference design, which means that even when
: > the valves and pistons get out of their correct relationship nothing
: > will hit and nothing should be damaged.
: >
: > A shop which tells you otherwise doesn't know what they are doing
: > visa-vis older Volvos. 850, 960 and newer all indeed can have massive
: > internal damage from a failed timing belt.
: >
: > If you are not prepared to DIY the belt replacement, make sure that
: > whoever does it is someone who works on Volvos all the time. You don't
: > want anyone learning at your expense.
: >
: > John
:
:
: He said this is a B200E, is that still non interference? I'm not
: familiar with that engine since we never had it over here.
 
Hi, maybe this will help answer some of the questions:

Description

a..
b.. B200E,B230E: fuel injection high compression version
General Specifications

Engine Year CC Fuel System HP (SAE) @RPM LB-ft (SAE) @RPM CR
B200E 1985-
1986 Bosch K jet 117 6000 117 3000 10

Tune-Up Specifications

Engine Year Idle RPM Spark Plugs Type Plug Gap (in.) Timing BTDC @ RPM
Valve Clearance Cold Warm Cranking Compression (PSI)
B200E 1985-
1986 W6DC 0.030 10@ 0.014 - 0.016

It's all I could find.
Good luck "bildabob".

Andy I.


John Horner wrote:
: > z wrote:

: >
: >>
: >>> My 88 240 gently coasted to a halt recently and I discovered that the
: >>> timing belt had busted. No nasty crunchy noises were heard from the
: >>> dying engine. But I have been told that the engine is now beyond
: >>> economical repair.
: >
: >
: > The 240 engine is a non-interference design, which means that even when
: > the valves and pistons get out of their correct relationship nothing
: > will hit and nothing should be damaged.
: >
: > A shop which tells you otherwise doesn't know what they are doing
: > visa-vis older Volvos. 850, 960 and newer all indeed can have massive
: > internal damage from a failed timing belt.
: >
: > If you are not prepared to DIY the belt replacement, make sure that
: > whoever does it is someone who works on Volvos all the time. You don't
: > want anyone learning at your expense.
: >
: > John
:
:
: He said this is a B200E, is that still non interference? I'm not
: familiar with that engine since we never had it over here.
Click to expand...


Well, it coesn't cost much to replace the timing belt; if it runs fine
after that, then obviously it's money well invested. If it's crunched
up, then you haven't invested too much to find out.
 
James said:
He said this is a B200E, is that still non interference? I'm not
familiar with that engine since we never had it over here.
Click to expand...

I don't think it makes a difference, but I'm not 100% certain.
 
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