Intake manifold bolt

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JerryH
Posts: 121
Joined: Sat Jun 05, 2010 11:00 pm
Your car is a: 1976 124
Location: Erie, Colorado

Intake manifold bolt

Post by JerryH »

I just noticed that I am missing the front bolt that joins the intake manifold to the block on my '76. Looks like it's a M8 x 1.25, but I don't know the length. What is the length of this bolt?

...and would this missing bolt by any chance be the source of the oil leak in the vicinity?

Thanks.

-J
1976 Fiat 124
1972 Fiat 124
BEEK
Posts: 1833
Joined: Wed Mar 24, 2010 10:45 pm
Your car is a: 1975 Spider
Location: clermont fl

Re: Intake manifold bolt

Post by BEEK »

unfortunatly no on the oil leak. if no one responds tonight ill get you the exact dimentions in the morning, all of my measuring devices are at the shop
Automotive Service Technology Instructor (34 year Fiat mechanic)
75 spider
, 6 Lancia Scorpions, 2018 Abarth Spider, 500X wifes, 500L 3 82 Zagatos. 82 spider 34k original miles, 83 pininfarina, 8 fiat spider parts cars
son has 78 spider
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JerryH
Posts: 121
Joined: Sat Jun 05, 2010 11:00 pm
Your car is a: 1976 124
Location: Erie, Colorado

Re: Intake manifold bolt

Post by JerryH »

Thanks Beek.

I'll head to the hardware store tomorrow once I know the size of the bolt.

The oil appears to be coming out between the head and the block, but only in that corner (front, intake side). I checked the torque on the head bolts--all are okay (56 ft-lbs according to Haynes). I plan to clean the engine and watch for oil leaks to pinpoint the source.

-J
1976 Fiat 124
1972 Fiat 124
WYSpider

Re: Intake manifold bolt

Post by WYSpider »

Jerry, how is that leak going? I had an oil leak between the head and the block that expanded into also leaking radiator fluid. Head gasket was failing.

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JerryH
Posts: 121
Joined: Sat Jun 05, 2010 11:00 pm
Your car is a: 1976 124
Location: Erie, Colorado

Re: Intake manifold bolt

Post by JerryH »

Well, thanks for asking WYSpider.

I agree that a new head gasket will likely fix the leak.

The car isn't being used now... I want to fix these leaks before running again. I purchased all new gaskets and seals. I want to replace the seals, but I'm having a heckuva time trying to remove the crankshaft nut with the engine in the car.
The plan now is to pull the engine in the fall and get the body repaired and painted over the winter. I plan to replace all seals and gaskets with the engine out. I'll look into getting the head done while its off.

I also purchased new A-arms and bushings. Lots of work to be done once my sons are back in school!

Even though I'm not running, I still visit this forum nearly every day.

-J
1976 Fiat 124
1972 Fiat 124
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