Coolant coming out of fuel drain off pipe under intake manifold - Page 2 - Alfa Romeo Bulletin Board & Forums
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post #16 of 26 (permalink) Old 09-03-2017, 10:23 AM
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It can be done with a pressure check, pumping 1-3# air pressure into the radiator, BUT how to you spot the location of any air leak? You may see the pressure drop indicating that leak, but WHERE is it? It will not be big!


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post #17 of 26 (permalink) Old 09-03-2017, 03:41 PM
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Real pros pressurize the system filled with coolant using a kit made for this.
The system can be left with pressure for a long time, to see where the coolant is leaking.

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post #18 of 26 (permalink) Old 09-04-2017, 11:29 AM
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It can be done with a pressure check, pumping 1-3# air pressure into the radiator, BUT how to you spot the location of any air leak? You may see the pressure drop indicating that leak, but WHERE is it? It will not be big!
One way to find small air leaks like this is to spray soapy water on the areas you suspect and watch for bubbles.

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post #19 of 26 (permalink) Old 09-04-2017, 11:40 AM
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Windex works too.


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post #20 of 26 (permalink) Old 09-21-2017, 02:40 PM Thread Starter
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Had some time and it took some time to get the manifold off. Pesky central long bolt.
Looks like gasket failure may of cause the problem.
Head gasket looks OK, ignore the debris on the engine block shoulder.
Frank
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post #21 of 26 (permalink) Old 09-21-2017, 03:51 PM
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If you feel sure of that, let's put a new gasket on there. I always put them on dry but Worth and Hylamar sell good sticky one that won't be impossible to remove .. some day when you are grey.-er.. I''l let the experts chime in . I can send you a gasket from my stash... if you promise to check my pulse the next time. 1300 or 1600?.. Get the nurse to clean up the mess. Pm me.
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post #22 of 26 (permalink) Old 09-21-2017, 03:57 PM Thread Starter
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Top image shows the central bold flush with the manifold / cylinder head surface.
Had to tap it out with a brass drift pin. Gasket by the third intake was loose and very thin.
Coolant noted on surface of the third port only.
Second image -third intake port and coolant channel suspect were the coolant cross over to the manifold.
Question on cleaning the surface of the manifold. Should I take it to a machine shop and get the surface checked for flatness and a few thousands taking off or do these intake manifolds seldom warp?
Still considering plugging the coolant channels and see if there are any cracks if not it probably was a gasket failure.

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post #23 of 26 (permalink) Old 09-21-2017, 04:02 PM Thread Starter
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Uncle

I got the nurse, she offered to clean up the mess too!
Ill PM ya

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post #24 of 26 (permalink) Old 09-21-2017, 04:03 PM
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I never had them trued.. just supper clean and checked witha straight edge for light peeping out
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post #25 of 26 (permalink) Old 10-24-2017, 12:53 PM Thread Starter
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follow up report
Got a 1600 large bore manifold, [ I understand there were two made 1.5 and 1.25 inch intake sizes ] and going to fit it on the 1600 head.
May go back to the 32 PAIA 5 Solex set up, instead of the Weber since the latter is too tall and will have interference problems with the hood.


Anyone know of a reputable Solex Carburetor repair shop?

Frank

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post #26 of 26 (permalink) Old 10-25-2017, 11:09 AM
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Solex carb rebuild

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Originally Posted by multicam View Post
Anyone know of a reputable Solex Carburetor repair shop?
Frank
YES, contact GTD on this board, he's restored a three between me a friend and shipped them safe and sound. New kits, new gaskets, everything cleaned and properly sorted, even the little spanner nicks to the edges of the brass jet covers were cleaned up and polished.

When the Solex is properly sorted the cars run like a dream with a surprising amount of low and mid range torque for a little 1300 and they give great gas mileage too.

Ciao
Greig
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