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Are 98 cams compatible in a 91 1.6

1K views 9 replies 3 participants last post by  BeyondBiscuits2 
#1 ·
I own a 1991 sentra 1.6 ga16de that had a timing tensioner failure due to low oil pressure. When I opened my timing cover I found that the the cam sprocket on the exhaust side had sheared off along with the front of the cam. Anyway I found a 1998 with a 1.6 at a local salvage yard. What I want to know is if that cams from this car will work on my car and can I just change the broken side or do I need both of them?
 
#3 ·
#5 ·
A quick Google for "GA16DE exhaust cam" gives me this page:

S1 Cams, 1.6, S1 BILLET CAMS 91-99 GA16DE .345" LIFT /263 DEG DURATION. USES STOCK SPRINGS. GOOD IDLE, EXCELLENT TORQUE CURVE.

...which lists the same cam for 91-99 models.

If I was in the same situation, would I try it?
Yes. I think it would be the first thing I try. But...only after taking a calipers to everything and making sure everything matches up reasonably well, within tolerances for wear/tear, etc.
Only real "problem" I see with this is the whole thing where you want to match the lifters to the same cam lobe they came off. Won't have that luxury here. I don't see it being much of a problem either as long as a guy uses quality oil and changes often enough and being kinda nice to the motor for the first couple hundred miles or so...give the cam and lifters a chance to get to know each other for awhile.
 
#6 ·
B13 GA16DE camshaft specs:

Bore Diametre
= no. 1 journal, 1.1024 - 1.1032 inches (28.000 - 28.021 mm)
= no. 2-5 journals, 0.9449 - 0.9457 inches (24.000 - 24.021 mm)

End Play
= 0.008 inches (0.20 mm)

Journal Diametre
= no. 1 journal, 1.0998 - 1.1006 inches (27.935 - 27.955 mm)
= no. 2-5 journals, 0.9423 - 0.9431 inches (23.935 - 23.995 mm)

Journal Runout
= 0.004 inches (0.10 mm)

Lobe Height, Intake
= 1.5984 - 1.6059 inches (40.599 - 40.789 mm)

Lobe Height, Exhaust
= 1.5701 - 1.5776 inches (39.880 - 40.071 mm)

Oil Clearance
= 0.006 inches (0.15 mm)
 
#7 ·
B14 GA16DE camshaft specs:

Bore Diametre =
= no. 1 journal, 1.1024 - 1.1032 inches (28.000 - 28.021 mm)
= no. 2-5 journals, 0.9449 - 0.9457 inches (24.000 - 24.021 mm)

End Play =
= 0.008 inches (0.20 mm)

Journal Diametre =
= no. 1 journal, 1.0998 - 1.1006 inches (27.935 - 27.955 mm)
= no. 2-5 journals, 0.9423 - 0.9431 inches (23.935 - 23.955 mm)

Journal Runout =
= 0.004 inches (0.10 mm)

Lobe Height, Intake =
= 1.5988 - 1.6062 inches (40.610 - 40.800 mm)

Lobe Height, Exhaust =
= 1.5712 - 1.5787 inches (39.910 - 40.100 mm)

Oil Clearance =
= 0.0018 - 0.0034 inches (0.46 - 0.86 mm)
 
#8 ·
So... the long and short of it is "no". While the bore diametres and journal diametres are the same, the lobe heights are slightly different, as is the oil clearance. Your best bet is to get a set of B13 camshafts, unless you're willing to risk it.
 
#9 ·
All of the numbers are within .001, except the oil clearance which is within .003, on otherwise brand new parts. This is saying to me that the bearing caps are a bit sloppier on the B13's.
If I was in the same boat, with numbers that close between the two models, I'd do it.
But that's me...
I'm weird that way...
I'd even use the cam as a bat...
If I didn't have anything else near me...
And I was that desperate...
But I digress...
 
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