156 2.0 T.Spark Broken Cam Belt? - Alfa Romeo Forum
You are currently unregistered, register for more features.    
 
Thread Tools
(Post Link) post #1 of 10 Old 14-01-08 Thread Starter
Status: -
 
Join Date: Jan 2008
Posts: 5
156 2.0 T.Spark Broken Cam Belt?

Hi all,
I wish this was not my forst post (

My car died on the side of the road heading to work the other day.
So I got it lifted and taken home.

It will not start, the starter motor turns but sounds very free to move, as if its not connected to anything. The Engine does not turn at all.

I opend the cam belt cover at the top enough to see into the belts, and notice that the cam belt is very loose, so I am not sure if its broken or slipped?

Can anyone shed any light on this, would it sound like the belt has broke and the car may now be a very expensive repair. I am willing to strip off the cam cover to see about doing the belts but not sure if this is a broken belt or fault tension point?

What would you recommend?

Thanks,
IrishLad.

PS: Bought the car at 86k and had belt done at the time, there is now 111k on the clock.
IrishLad is offline  
Sponsored Links
Advertisement
 
(Post Link) post #2 of 10 Old 14-01-08 Thread Starter
Status: -
 
Join Date: Jan 2008
Posts: 5
Re: 156 2.0 T.Spark Broken Cam Belt?

Just seen a link to another site on here that brings you through a few diags.

Engine won't start, but it turns over, cam's don't move, broken cam belt?

Would you agree with this, what is the chances of the engine not been serious damaged if the belt has broken and nothing major appear to happen apart from the car stalling?
IrishLad is offline  
(Post Link) post #3 of 10 Old 14-01-08 Thread Starter
Status: -
 
Join Date: Jan 2008
Posts: 5
Re: 156 2.0 T.Spark Broken Cam Belt?

Does anyone have any input for this please?

Thanks
IrishLad is offline  
Status: SOLD my 156!
AO Gold Member
 
gazza82's Avatar
 
Join Date: Jan 2003
Location: United Kingdom
County: Buckinghamshire
Posts: 9,094
Re: 156 2.0 T.Spark Broken Cam Belt?

Sorry to say this, but little or no chance of getting away with no internal damage. You will have bent some valves, and possibly some valve guides. Also the impact of the valves and pistons hitting will have compressed the big-end bearing shells so these will need to be replaced as well.

It's likely the belt is intact but the tensioner has let go or seized which has stripped the teeth of the belt. Happened to me on the starter motor ... and even that cost me most of my valves ....
gazza82 is offline  
(Post Link) post #5 of 10 Old 14-01-08 Thread Starter
Status: -
 
Join Date: Jan 2008
Posts: 5
Re: 156 2.0 T.Spark Broken Cam Belt?

That's what I was afraid of, but since there was no drama when the car stalled I was thinking maybe its not that bad.

Is there anyway to test the vavles, I assume taking the head off and looking at them, is taking the head off a big job?

Thanks
IrishLad is offline  
Status: Busy busy busy!
Club Member
Membro Premio
 
Pud237's Avatar
 
Club Member Number: 71
Join Date: Apr 2006
Location: United Kingdom
County: Cumbria
Posts: 44,811
Re: 156 2.0 T.Spark Broken Cam Belt?

I'd get a recon engine fitted mate, or a full rebuild. Don't just put in new valves and guides where necessary, or in a few thousand miles you'll find you probably have bottom end rattle, meaning its a strip down again just to put in new shells.

Sorry to hear about this
Pud237 is offline  
Andyboy
Status: - Update
Guest
 
Posts: n/a
Re: 156 2.0 T.Spark Broken Cam Belt?

Agree with the above - all four pistons will need to come out for inspection. As well as compressing the bearing shells, they can apparently fracture across the top. This is why the garage repairs the bent valves etc and 1000 miles later the big ends let go. Also the valves can punch the top of the piston down and 'nip' the top piston ring.

So it's either a new engine or repair this one. It should be possible to lift the head, drop the sump and rebuild it in situ as long as the crank is unmarked. Given the propensity for these things to knock big ends out at over 100k a new set of shells and con rod bolts is a good plan anyway.

I'm on the case of a 1.8 156 with exactly this problem. Why didn't they keep the old 8v engine??
 
(Post Link) post #8 of 10 Old 14-01-08 Thread Starter
Status: -
 
Join Date: Jan 2008
Posts: 5
Re: 156 2.0 T.Spark Broken Cam Belt?

Thanks for the replies.

So to rebuilt in situ, as we have a car lift at the house.

I coudl drop out the bottom end and lift the head, replace the pistons, rods etc.. along with new valves and that would do the trick.

Has anyone ever done this before, and is it a major job?
IrishLad is offline  
Status: -
AO Member
 
Join Date: Jan 2005
Location: United Kingdom
County: -
Posts: 15

Member car:

147 1.6 Lusso

Re: 156 2.0 T.Spark Broken Cam Belt?

It is a major job and you're probably looking at around £500 in parts and around 15-20 hours' labour for a home mechanic. Nothing difficult or challenging, just time-consuming.
You could pick up a used engine for around £600, but there's always a risk in doing so, unless you're certain of it's history and/or can see it running.
brad d is offline  
Status: Sold the 147
AO Member
 
Warsash 147's Avatar
 
Join Date: Mar 2007
Location: Southampton
Posts: 443
Re: 156 2.0 T.Spark Broken Cam Belt?

Quote:
Originally Posted by IrishLad View Post
That's what I was afraid of, but since there was no drama when the car stalled I was thinking maybe its not that bad.

Is there anyway to test the vavles, I assume taking the head off and looking at them, is taking the head off a big job?

Thanks
My valves didn't need testing the fact that one snapped & the rest were bent made me think they might need replacing! Personally I'd probably go for a re-conditioned engine if mine went again rather than a re-build
Warsash 147 is offline  
Reply

Go Back   Alfa Romeo Forum > Supported Alfa Romeo Models > Technical & Vehicle Assistance > Engines (TS, JTS, JTD & V6)

Tags
156 , belt , broken , cam , tspark

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

 
For the best viewing experience please update your browser to Google Chrome