Did very old coolant stuff my engine block? Opinions wanted.
  • Register
  • Help
Results 1 to 8 of 8
  1. #1
    Tadpole
    Join Date
    May 2015
    Location
    Grampians, Victoria
    Posts
    8

    Default Did very old coolant stuff my engine block? Opinions wanted.

    Hello all,

    I'd like to ask the collective AussieFrogs brains trust for opinions. I am slowly but surely dismantling everything under the bonnet to pull the engine of my 1962 ID19. Disclaimer: this car sat outside for 12 to 15 years unused.
    The radiator is OK, just some sediment, which the garden hose easily flushed away, the coolant hoses are all rotted out, the thermostat has grown alien life forms, the water pump is corroded, but after removal of the water pump hosing I found the following, see attached pictures:
    I fear I might be looking for a new long stroke engine block.....
    What do you think? Is the alloy head stuffed by old corrosive coolant?
    Cheers, Erik

    Advertisement
    Attached Images Attached Images
    Last edited by tomatoes4all; 11th March 2019 at 09:00 PM. Reason: added car id

  2. #2
    1000+ Posts gerrypro's Avatar
    Join Date
    Nov 2010
    Location
    Camperdown 3260 Australia
    Posts
    2,952

    Default

    Water pump is certainlt US as is the secong ary pump housing. But only a thorough clean by a cylinder head specialist can determine the state of the head. It would be unlikely that the engine block would show similar problems as most of this electrolitic corrosion occurs in the softer metals and not in cast iron!
    Cheers Gerry

  3. #3
    Tadpole
    Join Date
    Mar 2017
    Location
    Perth
    Posts
    9

    Default

    Hi I did buy a DSpecial that had sat for 12 years will coolant in it and the damage pictured above was also evident no issues with the block but a $1300.00 bill for head repair. The engine has since been assembled and has no issues.

  4. #4
    Fellow Frogger! Big Frog's Avatar
    Join Date
    Sep 2012
    Location
    Somewhere near Mudgee, NSW
    Posts
    321

    Default

    My 2 cents worth, my D was same as this when I first got it and stripped it down, the alloy parts were buggered, the head was affected , not as bad as the pump, but i sourced another head. The first head got refurbished and subsequently found it way into another D that runs perfectly today. Soo as others have noted, block may be fine but head will need a good check up.
    Steve

  5. #5
    Fellow Frogger! citroenthusiast's Avatar
    Join Date
    Apr 2014
    Location
    Phoenix, Arizona USA
    Posts
    621

    Default

    There is a very thin wall between the water inlet and outlet ports at the front of the head. If this is perforated or dangerously thin, then it may be cheaper to source a new head than to have that interior wall repaired. If the wall is perforated, coolant from the pump will short cycle through the hole instead of being forced into the engine block and the engine will not cool properly.

    As others have said, the block itself is not likely to be damaged, other than the block drain will likely be completely plugged. I had to use a drill to clear out the rust that had accumulated underneath the plug.
    Last edited by citroenthusiast; 13th March 2019 at 04:28 PM.
    Cheers,
    John T.

    54 TAV Legere; 61DS19 LHM BVH (son's); 71DS21 BVH; 73SM 3.0; 73SM EFI (Megasquirt); 73SM 3.0 (other son's)

  6. #6
    Tadpole
    Join Date
    May 2015
    Location
    Grampians, Victoria
    Posts
    8

    Default

    Thank you all for your responses, quite encouraging to hear some have been revived. I'll pull the engine in the next few weeks and will separate the head from the block and we'll see if my luck holds... So far I've been quite lucky with this car. Cheers.

  7. #7
    Too many posts! JohnW's Avatar
    Join Date
    Jul 2001
    Location
    Perth, WA, Australia
    Posts
    10,492

    Default

    If I could open the photos..... I get an error message "server down" for the second photo. When will someone sort out this site again so we can easily post photos?

    On the electrochemical scale, aluminium will sacrifice itself relative to cast iron in a conductive fluid. The water pump is typical of that. I'd expect the block to be sludged up but OK.

    I had a car with an alloy head sit for 12 years once and there was no corrosion. That was due to rainwater being used in the cooling system, as pure water is practically non-conductive.

    Cheers
    JohnW

    Renault 4CV 1951
    Renault R8 1965
    Renault Scenic 2005 (wife's)
    Renault Scenic 2007 (mine)
    Renault Scenic 2006 (daughter's)
    CitroŽn CX Pallas 1980

    National Co-ordinator, Renault 4CV Register of Australia

  8. #8
    1000+ Posts
    Join Date
    Oct 2010
    Location
    Armidale
    Posts
    2,112

    Default

    Quote Originally Posted by JohnW View Post
    If I could open the photos..... I get an error message "server down" for the second photo. When will someone sort out this site again so we can easily post photos?

    ...

    Cheers
    I can see all photos, so tomatoes4all has posted "correctly".

    Just noticed - have a look at Toony's 504 For Sale post - his pictures work just the way they used to! So either:

    * we need to get Toony to show us how to post photos, or

    * something has just changed (back), or

    * the rules on posting photos are different if it's a "For Sale" ad. Since hardly anyone even tries to post photos in For Sale ads (they just link to Gumtree), how would we know ?

    Cheers

    Alec

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

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