Freeze Plugs

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jandarah
Posts: 113
Joined: Thu Apr 30, 2015 1:52 am
Your car is a: 1977 124 Spider
Location: Mount Hallen, Queensland, Australia

Freeze Plugs

Post by jandarah »

Hi,

I have a later 132 series 1756cc block. I can see four freeze plugs (we call them Welsh plugs, who knows why??) under the exhaust manifold. Are there any more? I thought I read somewhere that there is a fifth one at the rear of the block, nice and hidden away and requiring a engine removal. Also, Auto Ricambi in the US sell a kit of 5. Advice please.

Cheers and hope you are all having a great Christmas.
John in Oz
First Fiat: 1970 124 sedan 1970 - 1976
Then horse float towing vehicles up to present.
Current Fiat: 1977 124 Spider 1756cc with twin Weber 40 IDF's
1970 124BC coupe; 1756cc with twin Weber 40 IDF's, used for sprinting
So Cal Mark

Re: Freeze Plugs

Post by So Cal Mark »

One plug on the intake side, the rear has a removable plate
jandarah
Posts: 113
Joined: Thu Apr 30, 2015 1:52 am
Your car is a: 1977 124 Spider
Location: Mount Hallen, Queensland, Australia

Re: Freeze Plugs

Post by jandarah »

Hi Mark,

Excuse my ignorance, but from what you have said, four on the exhaust side, one on the intake side (must have a look for that one) and only a removeable plate on the rear. Fiddly job, but I guess they can be replaced with the engine in the car??

Great forum, many thanks again from Down Under. :D
John in Oz
First Fiat: 1970 124 sedan 1970 - 1976
Then horse float towing vehicles up to present.
Current Fiat: 1977 124 Spider 1756cc with twin Weber 40 IDF's
1970 124BC coupe; 1756cc with twin Weber 40 IDF's, used for sprinting
fiatfactory
Posts: 506
Joined: Sun Jun 13, 2010 11:22 pm
Your car is a: 1970 128

Re: Freeze Plugs

Post by fiatfactory »

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Last edited by fiatfactory on Tue Jul 02, 2019 4:55 am, edited 1 time in total.
nothing to see here... move along.
jandarah
Posts: 113
Joined: Thu Apr 30, 2015 1:52 am
Your car is a: 1977 124 Spider
Location: Mount Hallen, Queensland, Australia

Re: Freeze Plugs

Post by jandarah »

Hi Steve,

I stand corrected on the spelling, why is it freeze and why is it Welch? Thanks for the offer, i will get back to you if I have problems locally.

Cheers
John in Oz
First Fiat: 1970 124 sedan 1970 - 1976
Then horse float towing vehicles up to present.
Current Fiat: 1977 124 Spider 1756cc with twin Weber 40 IDF's
1970 124BC coupe; 1756cc with twin Weber 40 IDF's, used for sprinting
fiatfactory
Posts: 506
Joined: Sun Jun 13, 2010 11:22 pm
Your car is a: 1970 128

Re: Freeze Plugs

Post by fiatfactory »

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Last edited by fiatfactory on Tue Jul 02, 2019 4:56 am, edited 1 time in total.
nothing to see here... move along.
weengra
Posts: 37
Joined: Mon Feb 24, 2014 5:59 pm
Your car is a: 82 Spider 2000 + 76 128 Sedan

Re: Freeze Plugs

Post by weengra »

There are several Welch plugs into oil galleries on the rear of the block and sometimes they are removed when blocks get sent for cleaning at a machine shop. That's what happened to me. Turns out they are fiddly to install and if they leak it's a major oil leak that does require engine removal to remedy. Most folks have the machine shop install them and use some kind of sealant as insurance. Best practice is to leave them alone in the first place, I am told. b-
Bill Barker
Madison, Wisconsin
1982 Spider 2000
1976 128 Sedan
jandarah
Posts: 113
Joined: Thu Apr 30, 2015 1:52 am
Your car is a: 1977 124 Spider
Location: Mount Hallen, Queensland, Australia

Re: Freeze Plugs

Post by jandarah »

Yep, Leave well enough alone is a principle of mine, so only necessary bits are touched. OK on the origin of Mr. Welch and the reason for their being called freeze plugs... makes sense. That sort of cold will never ever be an issue here, more so higher temps.

Cheers,
John in Oz
First Fiat: 1970 124 sedan 1970 - 1976
Then horse float towing vehicles up to present.
Current Fiat: 1977 124 Spider 1756cc with twin Weber 40 IDF's
1970 124BC coupe; 1756cc with twin Weber 40 IDF's, used for sprinting
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