I'm struggling to follow this. What has happened to the bearings?
On a side note, "look good" doesn't really cut it. Needs mic'ing, could get away with a vernier I guess, plus assembly check with Plastigague - what a laborious fun task that is!!
Chris
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Bumper sticker - This is an historic vehicle and only has three speeds....... if you don't like this one you sure as hell won't like the others.
What I'm saying is for 20mins running the white metal is marked, far more than I would like. The "looks good" was just my way of saying that without going into to much tech. it doesn't appear unduly naf. I realise I have to go MUCH deeper to get to the bottom of this.
OK so thought it time for an update. Have stripped down for closer look and hey ho wada ya know, it's in a prity sorry state. Have sent it of to be rebuilt [again] Having told him the story his first thought was timing cover gasket? He sent me a picture and sure enough the hole in the gasket isn't fully clear of the hole in the block, hence oil restricted, and they don't need any restrictions. not the first time it;s happened according to him, these gaskets don't fit newer blocks!
WOW ...didn't know about the gasket problem
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OK so engine back after another rebuild, sure enough photo's to show gasket restriction on timing cover. All back in and ready to go! Crank over [no HT] almost instant pressure, right up to 22lbs on starter. Here we go then......no not firing up, no fuel. Now I've documented on another site the problems I had getting it fired up,[no fuel pressure] turns out no one but two faulty fuel regulators. [fuel just going straight through, no pressure] Took fuel feed off at rail and crank, no fuel! Not what I had before had plenty to rail, just kept going straight back to tank. Fuel pump is a CBS with built in pressure valve, that was jammed shut, ie. fuel is hitting a blockage? Can blow through return pipe to tank, can blow through delivery from pump to rail. Nothing was disturbed taking apart, any ideas please I'm at my wits end.
Its the fuel pressure regulator that builds the pressure (provided by the flow from the pump), sending excess back to the tank. Is this working properly? So far it sounds like all you've checked is that there are no blockages in the lines. You need to use a gauge to test fuel pressure properly unless it ****es out in which case there's probably enough! There'll be a port on the rail to tap into. Might be a schrader valve. Probably needs something like 60psi to operate efi.
You probably shouldn't need to crank to get pressure. Simply putting the ignition on should activate the pump for a few seconds to prime the system to working pressure in anticipation of starting.
Chris
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Bumper sticker - This is an historic vehicle and only has three speeds....... if you don't like this one you sure as hell won't like the others.
38 psi for a rover system ... sounds like the pressure regulated bypass has jammed open and just returning too tank. You could remove the schrader fitting Chris mentioned and see if there is any flow there ? Pics would help !
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I have a shed load out of pump, infront of pressuure valve, as I said, was running a couple of weeks ago prior to engine being sent off. Inlet and efi removed and put on shelf whilst away, should just bolt on and away. Pump, pipes etc. all new. ???
I take it you mean the injectors are not firing then ? Have you checked all the earths on the loom ? Does the injector relay click when trying too start ?
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Has the ignition checked out OK though, or have you just assumed its a fueling problem as that what you've had before? Most no start conditions are ignition related.
Chris
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Bumper sticker - This is an historic vehicle and only has three speeds....... if you don't like this one you sure as hell won't like the others.
Thanks for your suggestions guys. As said everything was fine before engine removal. The Car Builder Solutions injection fuel pump has a pressure [check valve] fitted to the rear. This had jammed shut tight, no fuel getting through. This happened three times despite no aparant problem found. ....My Dad used to say to me when I had a problem at work, "can't have life to easy boy" [80 hrs a week, on call 24/7 for 32 yrs. in family buisness Ha ha.] When something ODD happens my wife and I say, " Dad's at it again, sent another problem!" Well he's had a good laugh at my expence again, it's started and run 7 times out of 7?????
I had an Aeromotive one way valve fitted in an effort to resolve a difficult starting situation. Didn't improve things sadly, but what it did do is turn itself into a no way valve at a very convenient deserted spot somewhere between Las Vagas and Wendover, and it was stinking hot weather. Thankfully was diagnosed quickly and the lines had been left long so it was easily removed. Decided to just live with the hard starting but a few years later I came across a guy who was gm trained (from the late 80's era) and he determined it was leaky injectors, and had a full new set with gasket, foc! Did improve things considerably, but not perfect. Funny though as the old injectors only weeped slightly (and if ran great when it got started), but made me realise how sensitive efi can be.
Chris
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Bumper sticker - This is an historic vehicle and only has three speeds....... if you don't like this one you sure as hell won't like the others.
Started and run for 20 mins. well happy all good. Just turn the key before off to do a little part time job, magic! Daughter and grand children round for BBQ tonight. "I've got something to show you!" I think they;ve seen it not start before!!!!!!!!1Dad's having a laugh again.
Result
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we had major problems starting the 3500 EFi numerous diagnostics right up to voltage present at injectors all checking positive. It turned out pinzels were stuck shut in the injector and not allowing fuel to inject, took ages and ages to diagnose as every rover check on the check list checked out positive. removed injectors, 3 volts and a can of pressurised petrol at 35PSI , few taps on a socket they freed and petrol misted through. A great learning curve but so very frustrating. several weeks of frustration.
As said before, I've documented the non start else where, after MANY months of frustration replacing everything for new, including injectors, Turns out the pressure valve on the fuel rail was faulty, TWICE. I have;t tried again since Fridays no start but I had no fuel in rail. I'm assuming it's the valve in pump again!What is going on.
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