Re: Getting 'the bolt' off a loose engine

[quk@isham-research.demon.co.uk (Phil Payne)]

In message <v0313030db3314b6d0cf6@[206.106.147.12]> Philip Rose writes:

> Well I _hope_ he doesn't use _Mars_ and make the new orbiter photos all blurry!

It's off.

I put the block on a Black & Decker Workmate - it creaked and groaned a
bit.  Then I put another Workmate about ten feet away, with the
legendary toolbox on top of it.  I lashed a heavy scaffolding plank
underneath them both, and then applied three loops of rope around the
plank and the sump.  Then I put the massive torque wrench on the bolt
and discovered I needn't have bothered - it came off at about 200 ft
lbs.

Status:

MB001293

Complete engine plus manifolds, turbo, wastegate, wastegate frequency
valve, throttle body, cold start valve, distributor, plug leads,
alternator, idle stabiliser valve, warm-up regulator, after-run water
pump and knock sensor.  Thermostat cover and rear attachment bolt for
alternator bracket missing.

Observations:
- Dead WOT switch - poor contact and only on extreme deflection
- One plug lead not anchored in cap - signs of arcing
- Cam oil seal leaking heavily - not properly located - minor wear
  damage to camshaft
- Alternator soaked in oil
- Cork cam cover gasket leaking due to age - split above #1 injector and
  leaking heavily
- Breather hoses collapsed
- Exhaust manifold cracked in usual place
- #1 top & bottom exhaust manifold nuts rounded off
- #2 lower nut & stud missing
- #5 top & bottom nuts finger-tight
- #4 & #5 exhaust gaskets blown
- Ash deposits on underside of manifold between #4 and #5
- Wrong spark plugs - Bosch W7DC, gaps over 1.1mm, eroded
- Plugs massively over-torqued
- #4 injector seat fouled by massive air leak
- #4 & #5 injector shrouds split - all shrouds eroded at tips
- Top half of wastegate replaced - one nut finger-tight, one
  cross-threaded
- Distributor gasket missing
- Distributor dust cover damaged
- One good hydraulic tappet (#1 inlet) out of 10 - others collapsed
- Valves dismantle without problems.  Valve stem oil seals worn out

The sooty coating in the combustion chambers and on the piston tops is
extremely thin - underneath are the usual white deposits found in MB
engines with defective WOT switches.  The inlet ports and even the valve
mating faces are also coated, suggesting a single violent oiling event,
possibly the inlet side of the turbo letting go.  There are no signs of
out-of-specification wear anywhere.

--
 Phil Payne
 Phone: 0385 302803   Fax: 01536 723021
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