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#Post#: 79143--------------------------------------------------
Timing chains are better than belts...
DIR By: Glen
Date: November 7, 2013, 7:33 pm
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Not where I'm sitting...Boom and the push rods are bent!
All I need now is someone to quash silly thorts of doing a 200D
or 2 2/4 D conversion to get a bit more go on the hills, though
untill now its always ran very well for a 2.25D. Must have done
nearly 40k miles since it last needed towing so I surpose its
done better than most.
Not sure on the damage at the moment but I was doing about 50
mph when it locked solid which probubly isn't a great start.
Guess it depends how the valves and seats have faired?
#Post#: 79152--------------------------------------------------
Re: Timing chains are better than belts...
DIR By: divie
Date: November 8, 2013, 2:34 am
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Have you taken the lid off to make sure it is a push rod? Mine
locked up earlier this year when a "hot spot" broke up. It did
untold damage, wrecked the head and damaged the top of the block
+ a piston. The replacement engine I bought was no better so I
ended up doing lots of machining and a head off Snailer. All
runs well now.
#Post#: 79154--------------------------------------------------
Re: Timing chains are better than belts...
DIR By: Glen
Date: November 8, 2013, 3:23 am
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Yes, took the rocker cover off at the road side, all valves shut
and though I didn't bother to look too hard at 2330, 30 km from
home, I saw a enough to spot a bent pushrod thus knew this
wasn't going to be an easy roadside fix thus wasn't worth
further effort at that time.
Turns out towing a series 1 on a bar behind a ninety is even
more of a cop magnet then usual, one even tried to stop us in a
really stupid place. All claimed they were worried we were
steeling it - I assured them this vehicle has quite an expencive
engine imobiliser - calmly explaining your having "quite a bad
evening" seemed to make them go away quite easilly.
#Post#: 79162--------------------------------------------------
Re: Timing chains are better than belts...
DIR By: FenTiger
Date: November 8, 2013, 5:55 am
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Had this happen a while ago. New (second hand) set of quality
push rods and all new timing gear saw it running better than
ever. When the chain goes, it tends to to strip the gears a bit
too, so you will need to factor this is. Diesel needs the six
way timing gear. Pattern are shit quality, so factor in sourcing
NOS or goos second hand from the the Doncaster strategic diesel
reserve. Nice thing about fitting a new chain is that the pump
timing is returned to stock, so you end up with a better runner.
Will probably need to knock the pump back a tad though.
Cam timing is easily set with a dti. Sods law dictates that it
will be the sixth notch that you try that gets it right.
Have fun.
T
#Post#: 79213--------------------------------------------------
Re: Timing chains are better than belts...
DIR By: Glen
Date: November 8, 2013, 8:22 pm
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If it runs anywhere near as good as it did before I'll be happy.
Probubly had dropped performance a bit recently (fuel
consumption has been quite poor the last couple of months!) but
it still would burn off a friends 2.25D gear for gear which
wasn't bad considering mine weighs more and runs 235/85 tyres
rather than 205s with a recent chain (that improved it a fair
bit but the pump won't advance enough).
Spot on about the crank sprocket - well mullered! Think pattern
might be my only option though as I can't really afford to not
get it running this weekend as its the only vehicle I'm
currently running and Donny is a fair walk. Might look into
getting a decent spare sprocket for less desperate times though.
#Post#: 79589--------------------------------------------------
Re: Timing chains are better than belts...
DIR By: Adam R
Date: November 13, 2013, 3:22 pm
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I can offer relay from donny as im there monday, and returning
via notts on friday. if Jim has bits for you like ???
#Post#: 79955--------------------------------------------------
Re: Timing chains are better than belts...
DIR By: Glen
Date: November 17, 2013, 5:15 pm
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Humm, replied to this last Sunday night but it apears not to
have posted.
Anyway, as of 0300 Sunday the 10th its back in buisness so it
had a downtime of 51 hours. I'd say its probubly gained a
couple of horses too which though subtle is quite welcome. Most
notable is a massive reduction in black smoke when its under
load, which had been one of those gradule things I'd noted as
probubly getting worse but not really quantifiable other than
'I'm pritty sure it wasn't that bad a couple of years ago.'
Fuel consumption over the last few months however has been
quantifiable as being surprisingly poor, though I wondered if
that was due to the heavy comuting its doing at the moment along
with the fact I seem to be driving in a lot of headwinds at the
moment - hopefully that'll improve if its holding speed better.
As black smoke tends to be a product of advanced injection I'm
slightly surprised its been reduiced so much, a streching chain
must be retarding things but I guess that reduices the air it
can induct thus makes it run richer.
Anyway, enough guff, I'm sure everyone wants to see the damage
photos...
[IMG]
HTML http://i40.photobucket.com/albums/e224/Glen107/LR/IMG_3594_zps45e3d939.jpg[/img]
What greeted me when removing the timing case.
[IMG]
HTML http://i40.photobucket.com/albums/e224/Glen107/LR/IMG_3596_zps88ccd41f.jpg[/img]
Yep, thats fucked!
[IMG]
HTML http://i40.photobucket.com/albums/e224/Glen107/LR/IMG_3599_zps55ee1314.jpg[/img]
Quite a few broken links, and a couple of spots where the
sprocket has bletently hit the middle of the links not the gaps!
[IMG]
HTML http://i40.photobucket.com/albums/e224/Glen107/LR/IMG_3602_zps22103bfb.jpg[/img]
The sprocket is ruined. Obveous when you think of it but as I
only tend to hear of belt failure sprocket damage didn't cross
my mind when buying spares.
[IMG]
HTML http://i40.photobucket.com/albums/e224/Glen107/LR/IMG_3633_zps4a82bbd6.jpg[/img]
The only other damage, not sure why one of the pushrods is
coloured like that, looks a bit like someones heated it to
streighten it in the last?
[IMG]
HTML http://i40.photobucket.com/albums/e224/Glen107/LR/IMG_3632_zps39b1998f.jpg[/img]
Looking much better - tipically it was the last keyway I tried
that was the right one, though I'd have probubly tried them all
anyway. Must have spent well over an hour lining everything up,
finding exhaust peak several times, tensioning the chain, doing
it all again to make sure, but given the way it runs it was
worth the effort.
[IMG]
HTML http://i40.photobucket.com/albums/e224/Glen107/LR/IMG_3634_zps81996d5c.jpg[/img]
RUNNING! Fired up very easilly.
[IMG]
HTML http://i40.photobucket.com/albums/e224/Glen107/LR/IMG_3643_zps4574cb00.jpg[/img]
Not priced it up exactly but parts have probubly come in around
£40 for everything so there probubly aren't many engines that
would fair so well after all that, though that doesn't include 2
days of my labour. I didn't take a picture of the chain
vibration pad but I replaced that too, was groved quite deep on
one side.
#Post#: 79983--------------------------------------------------
Re: Timing chains are better than belts...
DIR By: FenTiger
Date: November 18, 2013, 4:00 am
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--- Quote from: FenTiger link ---
>
> Had this happen a while ago. New (second hand) set of quality
push rods and all new timing gear saw it running better than
ever. When the chain goes, it tends to to strip the gears a bit
too, so you will need to factor this is in. Diesel needs the six
way timing gear. Pattern are shit quality, so factor in sourcing
NOS or goos second hand from the the Doncaster strategic diesel
reserve. Nice thing about fitting a new chain is that the pump
timing is returned to stock, so you end up with a better runner.
Will probably need to knock the pump back a tad though.
>
> Cam timing is easily set with a dti. Sods law dictates that it
will be the sixth notch that you try that gets it right.
>
> Have fun.
>
> T
>
--- End Quote ---
Glad you are back up and running. It is quite an easy and
satisfying job if you work through it methodically.
Enjoy the extra pony or two.
T
#Post#: 80090--------------------------------------------------
Re: Timing chains are better than belts...
DIR By: thorpey
Date: November 18, 2013, 4:55 pm
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well done glen when mine whent a tick over it took out the
rockers pushrods and the valves changed the lot :thumbs:
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