solid engine

hi all, my 300tdi, wouldn't start the other day, I thought flat battery , now know its locked solid.it rolls with clutch in and there isn't water or derv in bores as we have taken out injectors, what could be broken ? im sure it isn't seized

Sherrin said:

hi all, my 300tdi, wouldn't start the other day, I thought flat battery , now know its locked solid.it rolls with clutch in and there isn't water or derv in bores as we have taken out injectors, what could be broken ? im sure it isn't seized

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Try turning the engine backwards by the crank pulley, if it turns backwards I reckon the cambelt is bust.

good bit of advice thank you

Ok, I got a dose of that too.
Crank goes round almost 180, but locks on the roll over, Timing cover off, fuel pump is ok,timing, cam seems 1 tooth out, crank ok. When turn over forward and back i've got a clunk at the stop point.....Head off i suppose...unless theres something else to look at FIRST?? TA ALL

Sooo, head off, manual crankAND......234 all move.....No.1, well, i think it's safe to say the rods bought the farm...........NOW to drain the sump and see if this is terminal or recoverable!!!!!!!

Well a sunday under a landy.........Who hasn't been there before...er i hadn't.......So sump un-done, moved aside and this is what i found.....
Looks like someone...NOT ME......didn't torque the rod up!!!!!!!
Bore looks ok, journal too......OH and while i was groping in the sump i found what looks like a shapped banjo bolt.......ANYONE got a clue where that came from??....Please????

oil squirts have banjo bolts ,they spray oil on under side of piston

Under i go again then with a torch, this time.........Tomorrow........not getting black again today......Oh and the injector pump seems a little too far forward......it has ground a couple o mill. of the pulley against the front cover.....what the hell have they done to that??

gas69 said:

Under i go again then with a torch, this time.........Tomorrow........not getting black again today......Oh and the injector pump seems a little too far forward......it has ground a couple o mill. of the pulley against the front cover.....what the hell have they done to that??

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any pics

I'll get the shots 2morrow, lots of ground rubber in the cover aswell, I'm getting a deep end introduction to Disco's aren't I........Oily up to my elbows....Havent been this happy since...oooh.......I'm not saying, she might sneek in!!!!
Thanks for the input.....

I assume the engine has been rebuilt by someone rather than still being factory sealed? Did the con rod end cap come off? if so did the nut come loose or the bolt(s) snap? If the bolt snapped it may have been over-torqued on fit and it may be worth considering changing them all in case there are more that have been over-torqued/weakened. If it was just the nuts unwinding change the bolts/nuts on that rod and check all the rest are correctly torqued (including main bearing caps) at a minimum.

gas69 said:

Under i go again then with a torch, this time.........Tomorrow........not getting black again today......Oh and the injector pump seems a little too far forward......it has ground a couple o mill. of the pulley against the front cover.....what the hell have they done to that??

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Not sure if it can be done but do the cam and pump pulleys look the same? They are both the same part number but one should be fitted back-to-front so the 'face' of one pulley faces forward and the other faces towards the block.

If you PM me with you email address I can send you a copy of the 300tdi service manual and parts list

The nuts had un-wound themselves, no broken bolts, but the rod and cap are trash, HOW THE HELL could anyone not hear the cap coming of!? Got a 2nd hand rod and piston coming, will probably put all new shells in for peace of mind, and can re-torque the whole bottom end.

Use your original piston if you can as you know that will be the correct size for the bore. As you are changing the rod you will also need to measure piston protrusion above block surface (so that you can select correct head gasket thickness)

PM also sent

Did the manual get through ok?

HI, Yes manuals came through , MANY thanks,
Re-looked at pulleys with fresh eyes and it was only the belt that had not been fitted properly and rubbed down. Also looked at the journal and i will have to get the dremel out and delicatly polish out a couple of dinks .
WISH ME LUCK.
Are the jet/mist banjos loctited or just torqued? And where best to get a new brass push rod seat (that sits on top of the roller disc), Main stealer or ?????

oil squirt banjos are best loctited and carefully done up ,its not unknow for them to snap before recommended torque brass follower is err607

gas69 said:

HI, Yes manuals came through , MANY thanks,
Re-looked at pulleys with fresh eyes and it was only the belt that had not been fitted properly and rubbed down. Also looked at the journal and i will have to get the dremel out and delicatly polish out a couple of dinks .
WISH ME LUCK.
Are the jet/mist banjos loctited or just torqued? And where best to get a new brass push rod seat (that sits on top of the roller disc), Main stealer or ?????

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Cant really comment on tappet slide as I've never needed to change one, prices seem to vary but be sub £10 for replacement pattern part (not sure of genuine item price). From memory it is a head off job to replace them so choose by quality rather than price if you can, if you need to revisit it for any reason a cost of replacement head gasket would soon eliminate any savings made