And the intake side sprocket doesn't look like any photos or diagrams I've seen. Any ideas?
Timing Belt and Marks - 1978
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terance
- Posts: 2
- Joined: Sat Feb 23, 2019 12:49 am
- Your car is a: 1978 Spider
Timing Belt and Marks - 1978
I'm new to Fiat Spiders. I started working on a 1978 that I got a couple of months ago. Have not run it yet. The guy who owned it said he put on a new timing belt. The marks don't look right to me. Am I missing something, or did the gentleman not align it properly?
And the intake side sprocket doesn't look like any photos or diagrams I've seen. Any ideas?
And the intake side sprocket doesn't look like any photos or diagrams I've seen. Any ideas?
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18Fiatsandcounting
- Posts: 3798
- Joined: Fri Mar 15, 2019 11:23 pm
- Your car is a: 1969 and 1971 124 spiders
- Location: San Francisco Bay Area
Re: Timing Belt and Marks - 1978
Terance, I can't see the picture you posted, but in a nutshell, here's how the timing belt should be lined up:
With the engine at Top Dead Center (TDC) on the #1 and #4 cylinders (your timing mark on the camshaft should have a mark for this), the pulleys for the intake and exhaust should have a small hole in the inner face that lines up with marks on the camshaft housings. With the engine in this configuration, the distributor (or electronic ignition) should be set to fire on the number 4 cylinder. In addition, with the engine lined up this way, the auxiliary shaft pulley should have its timing hole (in the pulley) at about the 2'oclock position when viewed from the front.
I'm guessing that some of this isn't going to make sense, so please ask as many questions as you'd like.
And yes, be wary of "gentlemen" who promise you that everything is lined up very nicely, thank you very much.
-Bryan
With the engine at Top Dead Center (TDC) on the #1 and #4 cylinders (your timing mark on the camshaft should have a mark for this), the pulleys for the intake and exhaust should have a small hole in the inner face that lines up with marks on the camshaft housings. With the engine in this configuration, the distributor (or electronic ignition) should be set to fire on the number 4 cylinder. In addition, with the engine lined up this way, the auxiliary shaft pulley should have its timing hole (in the pulley) at about the 2'oclock position when viewed from the front.
I'm guessing that some of this isn't going to make sense, so please ask as many questions as you'd like.
And yes, be wary of "gentlemen" who promise you that everything is lined up very nicely, thank you very much.
-Bryan
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RRoller123
- Patron 2020
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Re: Timing Belt and Marks - 1978
May be helpful, has some spurious info, but gets all the necessary info out there in visual form.
'80 FI Spider 2000
'74 and '79 X1/9 (past)
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'74 and '79 X1/9 (past)
'75 BMW R75/6
2011 Chevy Malibu (daily driver)
2010 Chevy Silverado 2500HD Ext Cab 4WD/STD BED
2002 Edgewater 175CC 80HP 4-Stroke Yamaha
2003 Jaguar XK8
2003 Jaguar XKR
2021 Jayco 22RB
2019 Bianchi Torino Bicycle
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wetminkey
- Patron 2018
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- Your car is a: 1979 2000 Spider
- Location: Ault, Colorado
Re: Timing Belt and Marks - 1978
You can open terance's image by right click and 'open in another tab'.
No, terance, you are correct. The exhaust timing is way off - retarded, I believe (assuming that the crank sprocket is at TDC #4 in the pic).
There are a number of timing belt replacement threads on this forum, with pics, that you can easily search for, and now you've got the printed info, too (above)!
Best of luck getting your Spider going!
And welcome to the forum!
Todd.
No, terance, you are correct. The exhaust timing is way off - retarded, I believe (assuming that the crank sprocket is at TDC #4 in the pic).
There are a number of timing belt replacement threads on this forum, with pics, that you can easily search for, and now you've got the printed info, too (above)!
Best of luck getting your Spider going!
And welcome to the forum!
Todd.
1988 Mazda RX-7
1979 Fiat Spider 2000
1978 3/4 ton Chev 4x4 P/U "FRANKENTRUCK"
1976 Camaro
1972 VW Superbeetle
1969 Ford F100
1968 Mustang coupe
1979 Fiat Spider 2000
1978 3/4 ton Chev 4x4 P/U "FRANKENTRUCK"
1976 Camaro
1972 VW Superbeetle
1969 Ford F100
1968 Mustang coupe
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tima01864
- Patron 2021
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- Your car is a: 1983 FIAT Pininafarina Spider 2000
- Location: Wilmington, MA
Re: Timing Belt and Marks - 1978
One thing that I was not aware of, Maybe you will find it in your search, The crankshaft pulley may not need to be removed if the belt has been changed before.
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18Fiatsandcounting
- Posts: 3798
- Joined: Fri Mar 15, 2019 11:23 pm
- Your car is a: 1969 and 1971 124 spiders
- Location: San Francisco Bay Area
Re: Timing Belt and Marks - 1978
Todd, thanks for the suggestion, and I can see the image now.
Terance, now that I can see the picture, I suggest buying a new timing belt for this engine. I know the former owner said it had a new belt, but given the overall condition of the engine and the mistimed cam pulleys, I would just replace it to be sure.
-Bryan
Terance, now that I can see the picture, I suggest buying a new timing belt for this engine. I know the former owner said it had a new belt, but given the overall condition of the engine and the mistimed cam pulleys, I would just replace it to be sure.
-Bryan