New member, first time Rover owner - 1987 RRC - Page 8
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Thread: New member, first time Rover owner - 1987 RRC

  1. #106
    FRESHMAN ROVER
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    Re: New member, first time Rover owner - 1987 RRC

    Quote Originally Posted by KK88RRC View Post
    $300 sounds great if it checks out.
    I would not throw any more money into that knackered engine from eBay. You're 3.5 looks to be in much better condition!

    There is this 4.2... not sure if it's still available. I would not hesitate buying from the seller. Been listed for a month... maybe he will come down on price.
    https://www.defendersource.com/forum...ne-156102.html
    Will check it out. As far as the motor from eBay, here is the response regarding my request for a refund. Spoiler alert, warranty is void once the engine is opened obviously and the seller will not assist in any further way.


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  3. #107
    FRESHMAN ROVER
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    Re: New member, first time Rover owner - 1987 RRC

    Another daft question. The 3.9 I purchased most recently has a much longer key on the crank. Could this have been from a serp belt car?

    Here is the 3.5 and first 3.9 I purchased for reference:





    And here is the replacement I had been planning on using:



    The front cover from my 3.5 looks to fit onto this block, but now I am concerned about if the front main seal in my 3.5 front cover would even be able to seal as that key basically goes the length of the crank where the pulley would slide on.


    One last question, for the Elring composite head gaskets, does it matter which side goes up and which side faces the block?

  4. #108
    FRESHMAN ROVER
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    Disregard head gasket question. Says top right on each.

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  6. #109
    FRESHMAN ROVER
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    Re: New member, first time Rover owner - 1987 RRC

    The oil seal "track" is on the outside diameter of the rear side of the front pulley/balance damper, if that makes sense?

    In other words, all of the base crank you can see is covered when you put the pulley on to the crank.

    There's a difference as I understand it of some components for serp and non serp covers in the length of pulley etc but they are interchangeable. Both your front covers are non serp as far as I can see.
    The blocks, as far as fitting different front covers are compatible.

  7. #110
    FRESHMAN ROVER
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    Re: New member, first time Rover owner - 1987 RRC

    Quote Originally Posted by RRLondon View Post
    The oil seal "track" is on the outside diameter of the rear side of the front pulley/balance damper, if that makes sense?

    In other words, all of the base crank you can see is covered when you put the pulley on to the crank.

    There's a difference as I understand it of some components for serp and non serp covers in the length of pulley etc but they are interchangeable. Both your front covers are non serp as far as I can see.
    The blocks, as far as fitting different front covers are compatible.
    But the seal for the front covers I have would not be able to seal around this crank with the long key i believe. It looks like a serp crank, so was unsure how that seal could wrap tightly around the crank with the key as long as it is. Does that make sense?

  8. #111
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    Re: New member, first time Rover owner - 1987 RRC

    I understand the concern you have but it may be move conclusive to view it slightly differently.

    Without the front cover fitted, just get your front pulley and slide it onto the crank then spin the bolt in lightly.

    You should now see where the seal interface is (outside diameter of pulley) as the whole crank visible before you put the pulley on is now covered.

    None of the crank surface comes near the seal as it's too small a diameter, the pulley acts as a sleeve to bring it up to correct diameter to match the seal bore.

    The keyway has to locate the pulley in orientation to the crank as the ignition timing marks are indexed by this to give correct timing relating to crank position. So the keyway locates both cam gear and pulley together.

    Alternatively, push the detached pulley through an unfitted cover to see the interface.

  9. #112
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    Re: New member, first time Rover owner - 1987 RRC

    Quote Originally Posted by RRLondon View Post
    I understand the concern you have but it may be move conclusive to view it slightly differently.

    Without the front cover fitted, just get your front pulley and slide it onto the crank then spin the bolt in lightly.

    You should now see where the seal interface is (outside diameter of pulley) as the whole crank visible before you put the pulley on is now covered.

    None of the crank surface comes near the seal as it's too small a diameter, the pulley acts as a sleeve to bring it up to correct diameter to match the seal bore.

    The keyway has to locate the pulley in orientation to the crank as the ignition timing marks are indexed by this to give correct timing relating to crank position. So the keyway locates both cam gear and pulley together.

    Alternatively, push the detached pulley through an unfitted cover to see the interface.
    Thank you as always for taking the time to explain. I will try that tonight and that does ease my mind a bit. I was thinking it sealed around the crankshaft diameter itself. Few more seals to arrive and hopefully I will be able to start it within a week, weather permitting.

  10. #113
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    Re: New member, first time Rover owner - 1987 RRC

    Spent time yesterday pulling the pan from the 3.5 to clean all the metal debris out as well as the pick-up. Got it mounted with fresh gaskets onto the 3.9 now.

    For those interested, it was a spun rod bearing. Plenty of shavings, some an inch long, were just hanging out in the pan.




  11. #114
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    Re: New member, first time Rover owner - 1987 RRC

    ouch that crank is done, on a related note there is this guy on defender source but shipping may be a logistic nightmare
    https://www.defendersource.com/forum...ry-156854.html
    2k p38 4.6
    95 lwb 4.6
    01 d2 4.0

  12. #115
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    Re: New member, first time Rover owner - 1987 RRC

    Someone has certainly been in there before on the 3.5, those punch marks seem to identify the rod and cap as #7 nice of them to put some decent fracture points into a critical assembly just so they can remember where the components came from!

    Don't know what they've done there as I've never had a spun bearing in one of these, usually see them baggy and worn out from lack of oil changes.

    Hope you're getting replacement sorted so you can enjoy it again.

    You do learn so much running one of these though, slight understatement!

  13. #116
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    Re: New member, first time Rover owner - 1987 RRC

    I sure am learning a ton. So I finally started it yesterday and oil pressure didnt build quickly so I shut it off and ordered the tool to prime the pump. I had packed with vaseline but don't think its sucking up oil. Hopefully no damage was caused. Maybe that explains the lack of oil leaks so far haha.

    Another odd thing that may be incorrect. The wiring was broken at the throttle potentiometer, so i pulled one from the 3.9 intake and installed on the 3.5 intake. The part numbers are different, but hoping I can swap those. When the truck started, it seemed to idle at very high revs so was unsure if that could be the cause, or if my timing is still too far advanced. As I need to pull the dizzy to prime anyways, I will deal with timing again soon enough.

    But hey, it ran!

  14. #117
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    Re: New member, first time Rover owner - 1987 RRC

    the main difference between tps part no.s the 3.5 is/was adjustable, the later is/was fixed. you can check the sweep with software such as rovergauge or with an ohm meter. it cuts as it reaches maximum (90 or 95% throttle, it all in the rave), some other difference it may the plug but no biggie. http://www.vintagemodelairplane.com/...Throtpot02.pdf
    http://www.britishv8.org/Articles/Rover-14CUX-EFI.htm
    two sites with lots of great info on the efi and tps.
    2k p38 4.6
    95 lwb 4.6
    01 d2 4.0

  15. #118
    FRESHMAN ROVER
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    Re: New member, first time Rover owner - 1987 RRC

    Quote Originally Posted by 95classiclwb View Post
    the main difference between tps part no.s the 3.5 is/was adjustable, the later is/was fixed. you can check the sweep with software such as rovergauge or with an ohm meter. it cuts as it reaches maximum (90 or 95% throttle, it all in the rave), some other difference it may the plug but no biggie. http://www.vintagemodelairplane.com/...Throtpot02.pdf
    http://www.britishv8.org/Articles/Rover-14CUX-EFI.htm
    two sites with lots of great info on the efi and tps.

    Thanks for the link. With Mother's Day being over the weekend, I did not get to work on the truck, but I did take Friday off to spend time figuring out the high idle. Turns out I had missed the vacuum line coming from the fuel pressure regulator, doh. I had also pulled the valve cover and made an extension to fit onto my drill to turn the oil pump. After some time with that, I finally got oil up at the rockers and then once running, the truck sounded much quieter. I have a timing light on the way, as I just put it at 3deg btdc for now. I should be able to start driving it shortly, just need to tackle an exhaust leak at the header to y-pipe and get timing sorted).

  16. #119
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    Re: New member, first time Rover owner - 1987 RRC

    After nipping some exhaust leaks, and finding a missed connection at the alternator, the truck is now sounding good and charging. I drove it to work today in a ton of traffic and the EFI light came on. I wonder if my timing is still a tad advanced. It sounds and starts nicely, but is around 6deg btdc on idle with the vac line plugged. When i back it to 3, the idle is pretty **** slow and chokes a bit when the throttle is applied aggressively. The temp was mostly good through sitting in traffic, so seems the new water pump is circulating coolant nicely. However, the temp did raise a tad which i think tripped the EFI light. I don't think I have air in the system as much as it could use a new radiator and electric fan. I do have oil leaking still, seems to be at the valve cover so will troubleshoot that, but it is not nearly as bad as it was prior.

    I tossed on the other covers yesterday as well:


  17. #120
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    Re: New member, first time Rover owner - 1987 RRC

    factory specs call for 6 degrees btdc timing, with a margin error of + or - 2. that make a max of 8 deg min of 4 all from 6 deg, I have run nearly all my dizzy rovers at 10deg. timing, all of the ones I have tuned have run like time pieces. my personal classics have passed emissions testing with readings as low as .01 ppm which is nearly as good as a hybrid, great fuel economy and splendid performance thru the complete operating range. as a bonus, hardly ever a check engine light. of course emissions results can vary based on engine age, oil, plugs, tune, o2 sensors and cats, but if all is in working order 10 degrees seems to be the happy point.
    give it a shot, maybe just maybe the engineers got it wrong this time.
    2k p38 4.6
    95 lwb 4.6
    01 d2 4.0

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