Timing

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Timing; Has anyone advanced?
Topic Started: Sun Jul 19, 2009 6:16 pm (173 Views)
190D 2.5	Sun Jul 19, 2009 6:16 pm Post #1
Member Posts: 1,942 Group: Members Member #231 Joined: March 30, 2006	Despite a new battery and a new starter motor, my starting problems have returned. When I next get the car started I am going to get a proper compression/leak-down test done from a diesel specialist I've been recommended in Essex. I'm hoping the current problem can be cured by advancing the timing, rather than be told that the engine (210k) needs new rings (please God no). I've gone through my service history and can find nothing detailing that the timing has been adjusted - since new. I've been told that as the chain wears through its life the timing retards - not helpful for veg-burn. So has anyone advanced the timing on their veg (or diesel-only) 190D at all, and did it improve performance? Thanks



Richy190E	Sun Jul 19, 2009 9:34 pm Post #2
Sales Rep Posts: 1,822 Group: Members Member #1,387 Joined: June 9, 2007	Replacing the chain would be a safer exercise. The tensioner allows for wear in a chain. Dialling the timing back or forth to counter act a possibly very worn chain will only cure the symptom not the cause.



Stempies	Sun Jul 19, 2009 10:26 pm Post #3
Hot Lips Posts: 3,305 Group: Members Member #2,380 Joined: March 6, 2008	Are you still running on Veg or have you switched back to Diesel for a while! Can you use Redex in Diesels??



shrekky	Sun Jul 19, 2009 11:27 pm Post #4
Member Posts: 3,912 Group: Members Member #223 Joined: March 23, 2006	moving the timing will not compensate for low compression........................i fear this is long term symptom of running on veggy oil.................veggy oil does run at a higher pressure because it is thicker....................if compression is low, i fear mate that a engine rebuild might be needed................it is the only way you will cure it



190D 2.5	Mon Jul 20, 2009 11:36 am Post #5
Member Posts: 1,942 Group: Members Member #231 Joined: March 30, 2006	Thanks for the above replies. I think Shrekky is probably right. I'll know more once the compression test is done. Currently I can only get the car started if it's given a tow. Engine rebuild. Blimey.



nezamr	Mon Jul 20, 2009 11:49 am Post #6
Member Posts: 798 Group: Members Member #2,484 Joined: April 4, 2008	If all else fails, i know a guy on ebay was getting messed about with selling an engine and gearbox from a 190d 2.5 if you need to consider a transplant! http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&ssPageName=STRK:MEWAX:IT&item=280360683173



Richy190E	Mon Jul 20, 2009 9:57 pm Post #7
Sales Rep Posts: 1,822 Group: Members Member #1,387 Joined: June 9, 2007	Engine rebuilds can be fun and not as expensive as people think.



190D 2.5	Tue Jul 21, 2009 4:29 pm Post #8
Member Posts: 1,942 Group: Members Member #231 Joined: March 30, 2006	Are engine re-builds really fun? I'm a non-tech person so I'm increasingly thinking of a transplant - once I've got over pig flu.



nathantheengineer	Sat Jul 25, 2009 7:02 am Post #9
Member Posts: 89 Group: Members Member #2,051 Joined: December 21, 2007	If you take your time and are willing to learn its a very valuable experience. The hardest/most tedious part of an engine rebuild is the actual removal and refitting of the engine. Buy an engine stand and a torque wrench and you are good to go. I have not done a merc engine but most other marques i have. Are oversize rings available for the 2.5? Get friendly with a parts supplier and go for it.



shrekky	Sat Jul 25, 2009 8:21 am Post #10
Member Posts: 3,912 Group: Members Member #223 Joined: March 23, 2006	nathantheengineer Sat Jul 25, 2009 7:02 am If you take your time and are willing to learn its a very valuable experience. The hardest/most tedious part of an engine rebuild is the actual removal and refitting of the engine. Get friendly with a parts supplier and go for it. i agree with nathan



Richy190E	Sat Jul 25, 2009 8:41 am Post #11
Sales Rep Posts: 1,822 Group: Members Member #1,387 Joined: June 9, 2007	+1 and most good small engineering firms will let you watch them skim a head, face a block or whatever it is they are doing. Paying a garage will make it expensive but being patient and organised is key here.



nathantheengineer	Sun Jul 26, 2009 3:40 pm Post #12
Member Posts: 89 Group: Members Member #2,051 Joined: December 21, 2007	whereabouts are you??



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