Hello all. I think we have found the Problem. My mechanic did a pressure test at the inlet and outlet valve. Everything was fine. Then he looked at the timingchains. One timing chain is loose. The other is tight. it looks like she's skipped a tooth.
Now i order new complete timing Set.
You might like to read this old thread. This may have contributed to/explained the death of the engine in #347?Originally Posted by AndyW
https://www.two-sixties.co.uk/mgoc26...-chain-tension
P.S. If you do replace the chains, chain guides and tensioners, I would be interested in knowing if it was possible to do it with the engine in-situ. Mine is passed its scheduled change date.
David
Last edited by David; 28-06-2020 at 10:10 AM.
It must be possible even if the radiator needs to come out. There are several videos on You Tube showing it being done in Explorers and the like. My guess the problem might be the cam covers in our cars as they look quite tight, a trick I do on the Jensen is to undo one engine mount on one side and put a jack under the sump to tilt the engine a few degrees, this gives enough room to get some parts off.
What is the scheduled change date/mileage on these engines?
On a positive not a mate recently had the timing chains done on his Audi S6, the final bill was just over £5k and less than £1k of that was parts. Apparently if he had left it any longer the engine would have been scrap.
Steve
Timing chains, tensioners, sprockets and guides is 150,000 miles according to Ford. MGR play the 'three-monkeys' and don't mention it. I assume back in 2004 they assumed that neither they, MGR, or any ZT260/R75V8 would survive long enough to find out that it should have been done !
David
Last edited by David; 28-06-2020 at 12:18 PM.
Andy - the timing chain guides are NLA but I have several of both sides (LGJ000090 & LGJ000100) in stock if you need them £40 for the pair posted, just let me know
IMG_20200628_114452.jpg
Last edited by ColinE; 28-06-2020 at 12:53 PM.
Colin Ellis #456 It'll be alright in the end. If it's not alright, it's not the end
Aren't those guides, Colin? Looks like there are two fixed guides, two pivoting guides and two tensioners. Example here:
https://www.ebay.com/itm/Timing-Chai...-/253673710345
... (example only; that particular one is for a Mustang 2V up to 2000; later ones have a different lower crankshaft sprocket, I believe. Take care!)
Lots of good timing-chain "how-to" videos on Youtube and this Ford instruction sheet: https://performanceparts.ford.com/do...4-462V.DOC.PDF
David
Last edited by David; 28-06-2020 at 05:38 PM.
Sorry more haste less speed, yes guides - post amended
Colin Ellis #456 It'll be alright in the end. If it's not alright, it's not the end
Posting Permissions
Reply With Quote