1983 Fleetwood Brougham d'Elegance Project - Page 10
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RWD 19xx-1984 DeVille and Fleetwood,
1985-1996 Fleetwood and Brougham Forum Discussion, 1983 Fleetwood Brougham d'Elegance Project in Past Cadillac Vehicle Discussion; Filler #2 Best Regards Felix...
  1. #136
    grauhst's Avatar
    grauhst is offline Cadillac Owners Fanatic
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    Re: 1983 Fleetwood Brougham d'Elegance Project

    Filler #2





    Best Regards
    Felix

  2. #137
    outsider is offline Cadillac Owners Connoisseur
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    Re: 1983 Fleetwood Brougham d'Elegance Project

    making progress! Nice to see
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  3. #138
    kamyar cadillac's Avatar
    kamyar cadillac is offline Cadillac Owners Member
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    Re: 1983 Fleetwood Brougham d'Elegance Project

    Very good
    I enjoyed seeing topic
    I hope to get better every day.
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  4. #139
    grauhst's Avatar
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    Re: 1983 Fleetwood Brougham d'Elegance Project

    Ok, this is a critical moment right now. I saw that some intake bolts were loose. I mean they were that loose that I only had to turn them out with my pure fingers. Half of all the bolts were that loose. In some bolt holes there was coolant so I decided to take out the intake.
    Well that needed some days. The distributor was a hell to uninstall. No tools were avaliable to reach the distibutor nut. At the end my bicycle tool made it.
    Ok the intake is off and cleaned. It looks good again and it was a good decision to take out the intake. The gasket was close to its end.

    before...


    after...


    I was hoping to clean the oil drain holes after taking off the intake. I searched the holes but.... there were none.



    I put some oil at the passengers side head and the oil ran out of the head bolt hole....



    So this is the way the oil drains... (red = head bolt)



    I put a screwdriver in the hole to show it:





    That's why I said this is a critical moment. I am not able to clean that hole. I tried welding wire but that doesn't work.
    I really think I have to take out that one head bolt of the clogged hole. I am scared of it because I know about the threads in the block.

    That's why I want to ask you:
    How big is the possiblity of a failing thread when I am only take that one bolt out?
    Are the threads usually all failing or is it a less possibility? (maybe 1 out of 10 or so....)
    These are questions to your experience of people who have done it to an HT4100...
    Another question... is it possible to renew the thread (with thread inserts) when the cylinder head is still in place??

    All that questions are based on this bolt:


    I really don't want that but I can't see another solution to clean the drain hole.
    I would be very grateful to hear your experience with the threads.

    Best Regards
    Felix

  5. #140
    csbuckn is offline Cadillac Owners Master
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    Re: 1983 Fleetwood Brougham d'Elegance Project

    Tough call. If you plan on keeping the car for a long time, I'd try taking it out. Would you replace it with a new one? You should paint the intake to make it look purdy.

  6. #141
    talismandave's Avatar
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    Re: 1983 Fleetwood Brougham d'Elegance Project

    I wonder if there is any aerosol cleaning solvent that would work and not damage anything else?

    Something like choke and carb cleaner or electric contact cleaner? Maybe someone has info or opinion on this?


    If not, I think I am with Sam, I would have to try removing and cleaning. I could not seal it up again until I knew it was cleaned.
    I don't know if it could be done safely, but I would have to try. You cannot put a threadsert in with head in place, you have to tap a larger hole for the insert to go into.

    You have a healthy 4100, I believe you have also found a very likely reason so many are not. Something would have to be done IMO.

    Hope someone smarter than me can chime in.


    We sell at our hardware store, music wire. It is a mildly hardened steel wire that is much smaller than welding wire.Might be stiff enough in the right diameter to do the dirty work? I comes in 1 meter/yard pieces.

  7. #142
    csbuckn is offline Cadillac Owners Master
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    I'd be tempted to take the heads off and drill out the headbolt hole from the drainback down to make it bigger. I wonder what the Casper engines did to correct the issue.

  8. #143
    grauhst's Avatar
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    Re: 1983 Fleetwood Brougham d'Elegance Project

    Yeeeha, success!!!

    Took out the head bolts today and luckily the threads are like new. Very strong and I was able to tighten them again with 90 lb ft / 120 Nm without any problems.
    The oil drains are completely free again.









    Best Regards
    Felix
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  9. #144
    jamespowers is offline Cadillac Owners Connoisseur
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    Re: 1983 Fleetwood Brougham d'Elegance Project

    Nice job! You extended the life of that engine now. In hindsight, those engines needed that kind of care to last when they were new. The dealerships just had no idea how much maintenance they really needed. I doubt even GM did though.
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  10. #145
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    Re: 1983 Fleetwood Brougham d'Elegance Project

    Thanks a lot.
    I hope that all I do to the engine will be good to its future.

    Today I installed the intake. The thermostat housing was a hell to do, I hope everything will be dry later.



    Felix
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  11. #146
    jamespowers is offline Cadillac Owners Connoisseur
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    Re: 1983 Fleetwood Brougham d'Elegance Project

    Quote Originally Posted by grauhst View Post
    Thanks a lot.
    I hope that all I do to the engine will be good to its future.

    Today I installed the intake. The thermostat housing was a hell to do, I hope everything will be dry later.





    Felix
    Wow! It looks clean. Pretty soon you will tell us that you have a high performance cam in there and now it REALLY moves.
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  12. #147
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    Re: 1983 Fleetwood Brougham d'Elegance Project

    Quote Originally Posted by jamespowers View Post
    Wow! It looks clean. Pretty soon you will tell us that you have a high performance cam in there and now it REALLY moves.
    Thanks, I like when it looks clean. Wait when I have done the whole engine bay.
    Are there performance camshafts avaliable for this engine? Haven't found anything. (are there even stock ones?)

    Regards
    Felix

  13. #148
    jamespowers is offline Cadillac Owners Connoisseur
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    Re: 1983 Fleetwood Brougham d'Elegance Project

    Quote Originally Posted by grauhst View Post
    Thanks, I like when it looks clean. Wait when I have done the whole engine bay.
    Are there performance camshafts avaliable for this engine? Haven't found anything. (are there even stock ones?)

    Regards
    Felix
    Here are a couple ideas for getting more power out of the HT4100:
    http://www.cadillacforums.com/forums...ormance-2.html

  14. #149
    cadillac kevin's Avatar
    cadillac kevin is online now Cadillac Owners Master
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    Quote Originally Posted by jamespowers View Post

    Here are a couple ideas for getting more power out of the HT4100:
    http://www.cadillacforums.com/forums...ormance-2.html
    I like the last couple ideas....get a different motor. LOL

  15. #150
    jamespowers is offline Cadillac Owners Connoisseur
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    Re: 1983 Fleetwood Brougham d'Elegance Project

    Quote Originally Posted by cadillac kevin View Post
    I like the last couple ideas....get a different motor. LOL
    I knew you would but he asked what could be done with the one he has. He has already put enough into it to just keep it going and has an attachment to it.

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