olij Posted June 22, 2009 Share Posted June 22, 2009 my engine broke at a castle combe trackday on friday, has anyone had a similar failure to below?... Braking and changing down into a right hand corner, heard a belt snap/flap about and the engine cut out. Pulled off straight away. Towed back to the pits and found both the alternator and dry sump belts are missing. It was parked half on my trailer and then i noticed most of the contents of the coolant system ran out of the exhaust header joints and onto the floor..... So header tank completely empty and no dry sump or alternator belts... both belts effectively brand new following recent engine swap, correctly tensioned. could severe HGF cause hydraulic lock and snap the belts? is this possible , or is this just a nasty coincidence... Edited by - olij on 22 Jun 2009 12:51:24 Link to comment Share on other sites More sharing options...
Ivaan Posted June 22, 2009 Share Posted June 22, 2009 Olij, Can't be sure, but it sounds a bit more catostrophic than HGF.I think you'll have to have the head off, and see what damage you've got. Clive Link to comment Share on other sites More sharing options...
Normans_Ghost Posted June 22, 2009 Share Posted June 22, 2009 It could be that one of those belts has snapped and taken the other with it. Best bet is to replace both belts (inspecting the pulleys) and start up to see what, if any, damage has been done. Even a siezed engine due to a bore full of coolant shouldn't snap a belt. Norman Verona, 1989 BDR 220bhp, Reg: B16BDR, Mem No 2166, the full story here You and your seven toThe French Blatting Company Limited Link to comment Share on other sites More sharing options...
andy_h Posted June 22, 2009 Share Posted June 22, 2009 on mine the DS belt is outside the alternator belt, so if the alternator belt came off it would most likely take the DS belt with it. White road legal 2.0 HPC VX race car - stolen with trailer 27/03/09... found 11/06/09 😬... now under repair Link to comment Share on other sites More sharing options...
Mavic82 Posted June 22, 2009 Share Posted June 22, 2009 It would makes sense that one belt could take the other with it, however if the HG has goone in such a big way it also possible that the engine hydraulic locked. Not wanting to look at the worst case but this can cause belts to snap when the engine stops so quick but the interia of other components continues. In which case you are likely to be looking at much bigger repairs. It may be worth draining the coolant, empty the bores, check the cam timing, fit a new pump belt and seeing if it will fire. If it runs OK then just a head gasket, if not look further for failed internals. Did the back axle lock up at all during the incident? Link to comment Share on other sites More sharing options...
olij Posted June 22, 2009 Author Share Posted June 22, 2009 i don't remember the axle locking but that doesn't mean it didn't as i was trying fairly hard and may not have noticed a very brief lock Link to comment Share on other sites More sharing options...
IanWatson Posted June 22, 2009 Share Posted June 22, 2009 I'd suggest turning it over manually first before trying to fire it up on the starter! Link to comment Share on other sites More sharing options...
Mickrick Posted June 22, 2009 Share Posted June 22, 2009 Surely it wouldn't hydrualic when it's running? It would just blow the water/steam out through the exhaust. No? Link to comment Share on other sites More sharing options...
Gridgway Posted June 22, 2009 Share Posted June 22, 2009 How's the cambelt? Graham Link to comment Share on other sites More sharing options...
Gridgway Posted June 22, 2009 Share Posted June 22, 2009 PS, unlikely to be HGF IMO. Graham Link to comment Share on other sites More sharing options...
Stationary M25 Traveller Posted June 22, 2009 Share Posted June 22, 2009 Are the belts exposed, thus vulnerable to a lump of gravel getting trapped betwixt belt and pulley ... any dents in pulley face ? Link to comment Share on other sites More sharing options...
Mavic82 Posted June 23, 2009 Share Posted June 23, 2009 Well something is making water run out of the exhausts which is either HGF or major internal failure. And yes engines can hyrdrulic lock when running, just ask anyone with a diesel Espace. Link to comment Share on other sites More sharing options...
Racingshoe Posted June 23, 2009 Share Posted June 23, 2009 I had water pouring out of the exhaust when my Scholar liners cracked on my 1900k 😳 Gasket was fine, but the block was scrap. One of the gudgeon pins had worked loose. Rik Robarts - the future's bright, the future's orange here Link to comment Share on other sites More sharing options...
peterg Posted June 23, 2009 Share Posted June 23, 2009 And yes engines can hyrdrulic lock when running, just ask anyone with a diesel Espace or Chrysler Voyager Link to comment Share on other sites More sharing options...
Jason Plato Posted June 23, 2009 Share Posted June 23, 2009 I had a similar problem when I had the rear drivers side brake pad fail. The oil had got on the brake disk from the exhaust tail pipe from the cylinder head that that the valve go through the piston which caused the oil pump to size and snap the belt. inspect the cam belt, then compression test is required and then probably be ina position to diagnose the failure ☹️ here is my Duratec R .... C7 TOP Taffia joint AO with Al Link to comment Share on other sites More sharing options...
Jason Plato Posted June 23, 2009 Share Posted June 23, 2009 on a K the alternator belts can fail and take the oil dry sump belt and cam belt with it. here is my Duratec R .... C7 TOP Taffia joint AO with Al Link to comment Share on other sites More sharing options...
I reply to every thread Posted June 23, 2009 Share Posted June 23, 2009 I think you will find that the snapped belt is a symptom of rather more elaborate damage inside ☹️ As Dave suggests. Like when my X-flow cut out while overtaking - because a cam follower had broken, jamming the cam and shearing the distributor drive etc etc etc.................... Link to comment Share on other sites More sharing options...
I reply to every thread Posted June 23, 2009 Share Posted June 23, 2009 Your engine wouldn't cut out because the belts had snapped for a start......... Link to comment Share on other sites More sharing options...
Gridgway Posted June 23, 2009 Share Posted June 23, 2009 Bit like my R500. Engine stopped and the belts had come off. But then so had the bottom pulleys and so had the flywheel when it came to it! Graham Link to comment Share on other sites More sharing options...
olij Posted June 23, 2009 Author Share Posted June 23, 2009 hmmm thanks for the replies.. i'll report back once its been taken apart Link to comment Share on other sites More sharing options...
Mickrick Posted June 23, 2009 Share Posted June 23, 2009 So I guess it's what we call in the yachting business (I had a 2000hp 16V MTU engine go pop a couple of years ago ) a cluster Fcuk! Edited by - Mickrick on 23 Jun 2009 20:32:31 Link to comment Share on other sites More sharing options...
Dave McCulloch Posted June 23, 2009 Share Posted June 23, 2009 Oli I got over 11,000 trouble free miles out of that engine and you break it within how few miles . Seriously, hope it doesn't turn out to be too catastrophic. Dave Link to comment Share on other sites More sharing options...
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