Click here to sign up  Click here to go to the galleries  Click here to go to the code of conduct  Click here to go to the video page  Click here to go to the SW Meets page

Thread: 2.0 pinto timing

Page 2 of 3 FirstFirst 1 2 3 LastLast
Results 11 to 20 of 24
  1. #11 Re: 2.0 pinto timing 
    frequent forum contributor Club Member Tony Stott's Avatar
    Join Date
    Nov 2011
    Location
    By Douarnenez Bay Finistere
    Posts
    490
    ^ sounds like it to me, had a similar experience earlier in the year whilst replacing the timimg belt, sorted in about 15 mins, dizzy arm is a good tip in my opinion!!
    Reply With Quote  
     

  2. #12 Re: 2.0 pinto timing 
    frequent forum contributor Club Member
    Join Date
    Nov 2019
    Posts
    30
    Thanks for the many replies. The problem is the original distributor has been removed ready for a new electronic ignition type to go on so getting any help from the distributor is not available. I also have a lazy starter so it turns over slower than normal but I would have thought it would show some compression. Will have another bash at it today. Thanks.
    Reply With Quote  
     

  3. #13 Re: 2.0 pinto timing 
    frequent forum contributor Club Member andyf's Avatar
    Join Date
    Sep 2014
    Location
    Yateley, Hampshire
    Posts
    667
    It looks to me as though you should fit the backing plate to the cam first to get the position of the cam roughly right then slot the toothed part on in the position that it was in before you took it apart. This should get you to within 1 tooth of the correct timing. The only way to check for sure would be to dial it in. i.e look for the correct lift when #1 piston is at TDC with a dial gauge. This is of no use now but next time mark the head and the cam pulley with some tippex before you take it apart.
    Mk2 SWB Marina Roadster with a 2.0L Pinto built in 1986
    Reply With Quote  
     

  4. #14 Re: 2.0 pinto timing 
    frequent forum contributor Club Member
    Join Date
    Nov 2019
    Posts
    30
    Thanks. I have done that. I fitted the backing plate and turned the cam to the point where the pointer is at the dimple on the head and the crank is at tdc. I have done some digging and found that this is a vernier pulley that’s fitted to this cam which makes me think the cam has been upgraded at some point and the timing altered. I couldn’t tipex any points as the belt had been removed and refitted incorrectly giving zero compression. I have installed everything back and fitted new distributor and got it sparking good. Going to try and put some petrol down the carb to see if it gives and indication of starting. Not sure how to dial a cam in but I dare say google will. Cheers.
    Reply With Quote  
     

  5. #15 Re: 2.0 pinto timing 
    frequent forum contributor Club Member
    Join Date
    May 2016
    Posts
    71
    1)The reason usually why a vernier adjustable pulley has been used is likely because it's got an uprated camshaft.
    2) There is usually markings on the rear end of the camshaft eg 270, 285, RL1 etc

    3) From that identification , you then have to gain the spec from the manufacturer for both the valve clearances and also the timing.

    As an example many camshafts are measured at full lift using a dial guage indicator at between 104 & 110 deg on the crankshaft.

    Before doing this you need to measure where TDC is on the bottom pulley using a dial guage as this maybe upto 4 degrees out from the pulleys TDC mark. Use Typex , mark over that with a thin pencil line or biro & then remove pulley and using a fine bladed junior hacksaw create a new tdc on the bottom pulley that corresonds to the TDC mark on the cover/block used for strobe timing.

    Using a small protractor ligning o deg up with your new tdc mark on it then mark off wiith typex , line and finally a hacksaw mark for the full lift of the cam in degrees. eg 104 to 110 deg.
    Now using the dial guage on the cam establish the full lift position.

    With the Timing belt on and tensioned , you then select whichever hole the dowel will fit in and the washer holds it in place after the cambelt is torqued up.

    Your initial comment of spiting back through the carbs is usually that you are 180 degrees out on the rotor arm ie at 8 degrees on the bottom pulley its firing on number 4 instead of number 1 cylinder or vice versa.

    If you are on side draught carbs eg Twin 45's its normal for them to spit back through the carbs on initial start up.
    However be aware that if you are drastically out on your cam timing that a flame can come out of the carbs and melt the venturi and air filter etc.


    Cam timing is critical on any engine as it not only affects it's power curve but also it's fuel consumption too.

    There's a good chance that the cam you have is either Piper, Kent or Emerald.
    All of them have their individual cam timing specs and valve clearances.
    Another clue if you have a very hot cam is you might also have double valve springs.
    Reply With Quote  
     

  6. #16 Re: 2.0 pinto timing 
    Club Member
    Join Date
    Nov 2011
    Posts
    440
    You may be able to check the approximate positions by eye.

    With cylinder 1 at TDC as seen by the crankshaft timing mark, the cam followers on number one cylinder should be rocking (free to move not opening the valve). I think you can just about see the number 1 cam followers through the oil filler. The rotor arm should be pointing to the lead for number one plug. End of the compression stroke beginning the power stroke.

    If the camshaft is out of alignment the exhaust valve will be closing and the inlet valve opening as the crank passes TDC. The end of the exhaust stroke, beginning the induction stroke. The rotor arm ought to be pointing to lead for plug 4.

    If you are convinced the cam and crank are correctly aligned the dizzy could have been inserted incorrectly (easily done trust me). Another thing to check is that the distributer plug leads have been correctly positioned.

    Good luck,
    Paul

    PS: My spell checker is convinced the correct term is camp followers.
    Reply With Quote  
     

  7. #17 Re: 2.0 pinto timing 
    frequent forum contributor Club Member
    Join Date
    Nov 2019
    Posts
    30
    Thanks guys. Will have another check over on it and report back.
    Reply With Quote  
     

  8. #18 Re: 2.0 pinto timing 
    frequent forum contributor Club Member
    Join Date
    Nov 2019
    Posts
    30
    Well been at this pinto for a few hours today trying to get it to start. It got close a couple of times so in the end what I did was to remove the plugs and set the timing as close to the marks as possible and then I compression tested it. I then moved the cam a tooth at a time on the timing belt to see what would happen. When I turned the cam anti clockwise the pressure dropped so I turned it clockwise about 4-5 teeth past the timing marks and the compression came from 50 psi to around 90 so think I am in the right area. Have left it now as I think it’s flooded and battery is dying. Will give it another chance tomorrow. Am thinking of putting a stock cam in just to get it running again. I don’t have the tools or experience to dial the cam in. I would also need the settings from the cam maker and doubt very much I can get those. Nightmare but a love a challenge !
    Reply With Quote  
     

  9. #19 Re: 2.0 pinto timing 
    frequent forum contributor Club Member stevejgreen's Avatar
    Join Date
    Nov 2011
    Location
    Somewhere in the world
    Posts
    3,104
    It sounds to me that you need to find a professional local to you that understands Ford Pinto engines.

    You describe many variables, looking for an instant solution, internal combustion engines generally require that every element is right!

    There is a vast amount of information available on line, especially for ford engines. Take it one step at a time, make sore each step is right, and don’t expect instant results.
    MOC member since 05/97
    1984 Marlin Roadster SWB.
    1800TC, Unleaded ported head, stage 2 cam. Ford Type 9 gearbox, Dolomite Sprint rear axle fitted with MGF disc brakes.
    Three core radiator, Renault Clio vented front discs.
    The reasonable man adapts himself to the world; the unreasonable one persists in trying to adapt the world to himself. Therefore all progress depends on the unreasonable man.

    Loads of Marlin Reference can be found documents here or there.
    Reply With Quote  
     

  10. #20 Re: 2.0 pinto timing 
    frequent forum contributor Club Member
    Join Date
    Nov 2019
    Posts
    30
    Yip I know mate. Been repairing cars since I was 16 that’s why I know to adjust the valve timing to get it as close as possible. As it has a vernier pulley on it then the standard timing marks are only a guide so altering things slightly until the timing is correct is about the only way to get it close apart from dialling it in properly.
    Reply With Quote  
     

Bookmarks
Bookmarks
Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •