The Ford Barn

nick c · 01-14-2018, 03:24 PM

I have a rebuilt engine, bored out .040 oversize, custom intake with single barrel downdraft from ford 300 cu in eng, exhaust headers, Mallory centrifical advance, lightened fw, when I rebuilt the engine, I just put the same cam back in it. Then someone gave me 2 motors and a new reground camshaft, he said was a touring grind, with a mic the lobes have a lift of .297" ea. I would like to degree the camshaft in relation to the crankshaft. Modern cams are checked by bringing the crankshaft to tdc on #1 cyl. rotate crank till #1 intake lobe lifts dial indicator .050". what should the degree wheel on the crankshaft read?
thanks nick c

Bob C · 01-14-2018, 04:04 PM

Vince has some information on his site that might help.
http://www.fordgarage.com/pages/timingiseverything.htm

Bob

nick c · 01-14-2018, 04:09 PM

Yes Bob, the ford garage does have some good info, especially on cam specifications, but I would still like to use a degree wheel.
thanks nick c

Bob Johnson · 01-14-2018, 04:58 PM

I found the original Ford formulas for calculating the camshaft lift. Below are the results of the calculations.

Bob

Degrees Lift
0 0.0000
1 0.0000
2 0.0000
3 0.0000
4 0.0000
5 0.0000
6 0.0000
7 0.0000
8 0.0001
9 0.0002
10 0.0004
11 0.0006
12 0.0009
13 0.0012
14 0.0016
15 0.0020
16 0.0025
17 0.0030
18 0.0036
19 0.0043
20 0.0050
21 0.0058
22 0.0066
23 0.0075
24 0.0085
25 0.0095
26 0.0106
27 0.0118
28 0.0131
29 0.0145
30 0.0148
31 0.0150
32 0.0153
33 0.0164
34 0.0181
35 0.0206
36 0.0237
37 0.0275
38 0.0320
39 0.0372
40 0.0431
41 0.0497
42 0.0569
43 0.0648
44 0.0735
45 0.0826
46 0.0918
47 0.1008
48 0.1096
49 0.1183
50 0.1268
51 0.1351
52 0.1432
53 0.1512
54 0.1590
55 0.1665
56 0.1739
57 0.1812
58 0.1882
59 0.1950
60 0.2017
61 0.2081
62 0.2143
63 0.2204
64 0.2262
65 0.2318
66 0.2372
67 0.2425
68 0.2475
69 0.2523
70 0.2568
71 0.2612
72 0.2653
73 0.2693
74 0.2730
75 0.2765
76 0.2798
77 0.2828
78 0.2856
79 0.2882
80 0.2906
81 0.2928
82 0.2947
87 0.3010
88 0.3015
89 0.3019
90 0.3020

Bob C · 01-14-2018, 05:56 PM

Sponsored Links (Register now to hide all advertisements)

I don't understand how you can degree the cam without the cam card
with all the specs for the cam.

Bob

01-14-2018, 04:04 PM	#2
Bob C Senior Member Join Date: May 2010 Location: So Cal Posts: 8,741	Re: cam timinng with degree wheel Vince has some information on his site that might help. http://www.fordgarage.com/pages/timingiseverything.htm Bob

01-14-2018, 04:09 PM	#3
nick c Senior Member Join Date: Aug 2010 Posts: 260	Re: cam timinng with degree wheel Yes Bob, the ford garage does have some good info, especially on cam specifications, but I would still like to use a degree wheel. thanks nick c

01-14-2018, 04:58 PM	#4
Bob Johnson Senior Member Join Date: May 2010 Location: California Posts: 977	Re: cam timinng with degree wheel I found the original Ford formulas for calculating the camshaft lift. Below are the results of the calculations. Bob Degrees Lift 0 0.0000 1 0.0000 2 0.0000 3 0.0000 4 0.0000 5 0.0000 6 0.0000 7 0.0000 8 0.0001 9 0.0002 10 0.0004 11 0.0006 12 0.0009 13 0.0012 14 0.0016 15 0.0020 16 0.0025 17 0.0030 18 0.0036 19 0.0043 20 0.0050 21 0.0058 22 0.0066 23 0.0075 24 0.0085 25 0.0095 26 0.0106 27 0.0118 28 0.0131 29 0.0145 30 0.0148 31 0.0150 32 0.0153 33 0.0164 34 0.0181 35 0.0206 36 0.0237 37 0.0275 38 0.0320 39 0.0372 40 0.0431 41 0.0497 42 0.0569 43 0.0648 44 0.0735 45 0.0826 46 0.0918 47 0.1008 48 0.1096 49 0.1183 50 0.1268 51 0.1351 52 0.1432 53 0.1512 54 0.1590 55 0.1665 56 0.1739 57 0.1812 58 0.1882 59 0.1950 60 0.2017 61 0.2081 62 0.2143 63 0.2204 64 0.2262 65 0.2318 66 0.2372 67 0.2425 68 0.2475 69 0.2523 70 0.2568 71 0.2612 72 0.2653 73 0.2693 74 0.2730 75 0.2765 76 0.2798 77 0.2828 78 0.2856 79 0.2882 80 0.2906 81 0.2928 82 0.2947 87 0.3010 88 0.3015 89 0.3019 90 0.3020 Last edited by Bob Johnson; 01-14-2018 at 05:07 PM. Reason: Data Correction

01-14-2018, 05:56 PM	#5
Bob C Senior Member Join Date: May 2010 Location: So Cal Posts: 8,741	Re: cam timinng with degree wheel Sponsored Links (Register now to hide all advertisements) I don't understand how you can degree the cam without the cam card with all the specs for the cam. Bob

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01-14-2018, 03:24 PM	#1
nick c Senior Member Join Date: Aug 2010 Posts: 260	cam timinng with degree wheel I have a rebuilt engine, bored out .040 oversize, custom intake with single barrel downdraft from ford 300 cu in eng, exhaust headers, Mallory centrifical advance, lightened fw, when I rebuilt the engine, I just put the same cam back in it. Then someone gave me 2 motors and a new reground camshaft, he said was a touring grind, with a mic the lobes have a lift of .297" ea. I would like to degree the camshaft in relation to the crankshaft. Modern cams are checked by bringing the crankshaft to tdc on #1 cyl. rotate crank till #1 intake lobe lifts dial indicator .050". what should the degree wheel on the crankshaft read? thanks nick c