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        General >> Problems >> Engine Knocking Scorpio Cosworth
        
(Message started by: martinctb on Mar 15^th, 2004, 6:32pm)

Title: Engine Knocking Scorpio Cosworth
Post by martinctb on Mar 15^th, 2004, 6:32pm

Have problem on my 1996 cosworth when you start the car everything is fine as soon as you start to rev you get a knocking from the bottom end of the engine the more you rev the loader the knock.

Plus anyone know where i can get the info for a engine rebuild torq's etc

Title: Re: Engine Knocking Scorpio Cosworth
Post by tjp_lawson on Mar 16^th, 2004, 1:03am

http://www.fordscorpio.co.uk/engdata24v.htm heres some info on torques etc theres also some good pics on this link http://www.fordscorpio.co.uk/24vrebuild.htm hope this helps.
don`t envey that job at all mate good luck

Title: Re: Engine Knocking Scorpio Cosworth
Post by JohnJ on Mar 16^th, 2004, 8:30am

So your saying that its possibly a big end bearing? Good luck mate! I would make sure first....pull the sump off and make sure, Someone had a problem with timming chain guide falling in to the sump bloking the outlet,...could be something simple.

JJ

Title: Re: Engine Knocking Scorpio Cosworth
Post by martinctb on Mar 17^th, 2004, 5:08pm

Update have just taken delivery of the the car and the knocking seems to be not like a bigend bearing unless one has gone. Nothing on tick over rev and you hear knock knock. Ideas

Title: Re: Engine Knocking Scorpio Cosworth
Post by DJWerkz on Mar 18^th, 2004, 12:40am

I would say don't take any guesses, have someone who know's what they are doing look at it,...and I mean someone who know's what they are doing with the Ultma's!
STN,...any advice for this chap?

Title: Re: Engine Knocking Scorpio Cosworth
Post by Steve_S on Mar 18^th, 2004, 1:28am

I agree, get an expert to check it, just make sure it is not something like a loose eliment in one of the cats, mind you that tends to sound more rattley than a knock.

Title: Re: Engine Knocking Scorpio Cosworth
Post by martinctb on Mar 18^th, 2004, 6:02pm

Thanks, but i never put trust in others where my bank balance is concerned, id rather strip, examine and rebuild were necessary the cost of two hours in a garage with someone guessing what is wrong gives me a gasket kit and then i am sure plus everything ielse can be checked. Been building cars for years, seems like ill be doing my first cosworth soon.

Title: Re: Engine Knocking Scorpio Cosworth
Post by admin on Mar 19^th, 2004, 8:33am

One thing to try is to put the car in D and see if the knock gets worse at idle.

If it does then it does sound like bottom end bearings - they sound worse under load.

Get a doctors stheoscope for a few quid off Ebay - I always have one in the car for diagnostic purposes and it helps you identify where the noise is coming from - it could be crankshaft end float (watch the bottom pulley when reving the engine to look for movement)

You can remove the sump to get at the crankshaft shells with the engine in the car if needed unless you want to do the full rebuild as was done on the website.

Good luck

Steve

Title: Re: Engine Knocking Scorpio Cosworth
Post by martinctb on Mar 20^th, 2004, 7:58pm

Thanks does the sump come off without problems or do you have to dismattle the suspension, if just shell do you now a good supply of shell replacement. martin