4.0L HO Jeep Engine Build
Well, I couldn't stop there. :-D
1. New cam. :)
2. Here's the Speed Pro Part Number.
3. Note that the old early cam used a roll pin to locate the cam gear.
4. The new early Speed Pro uses a hardened solid steel pin. I like that and it gives me a warm fuzzy feeling. This unit is very well made.
5. This is the old late style cam. Note that the nose is completely different from the early style cam. This is because these cams used a cam retainer plate, a key to locate the cam and a Hy-Vo style cam chain. I prefer the retainer plate and key, but I have no choice here. All aftermarket cams of the early style.
6. This is the late style retainer plate. We are simply not going to reinstall it.
7. Late style stock Hy-Vo cam chain.
8. New roller replacement from Cloyes. They make really good stuff. Note the hardened crank gear teeth.
9. The top of this photo is the early system that will be retaining my cam. It's a large bolt with a captive large washer, a spring and a oil fed plunger that pushes against the cam cover. An early style cam cover has a button cast in that the plunger rides against. It's a little Rube Goldberg but none of it showed any undue wear after 240,000 miles so back in it goes. Yes, I cleaned it first and be aware that the plunger has a spiral groove to allow oil out.
10. I used my dial indicator to find TDC and the dots aligned right up. I will be degreeing this, but the only way to change installed LCA is to drill out the cam gear and install offset bushings. I hope it's right on.
Well, I couldn't stop there. :-D
1. New cam. :)
2. Here's the Speed Pro Part Number.
3. Note that the old early cam used a roll pin to locate the cam gear.
4. The new early Speed Pro uses a hardened solid steel pin. I like that and it gives me a warm fuzzy feeling. This unit is very well made.
5. This is the old late style cam. Note that the nose is completely different from the early style cam. This is because these cams used a cam retainer plate, a key to locate the cam and a Hy-Vo style cam chain. I prefer the retainer plate and key, but I have no choice here. All aftermarket cams of the early style.
6. This is the late style retainer plate. We are simply not going to reinstall it.
7. Late style stock Hy-Vo cam chain.
8. New roller replacement from Cloyes. They make really good stuff. Note the hardened crank gear teeth.
9. The top of this photo is the early system that will be retaining my cam. It's a large bolt with a captive large washer, a spring and a oil fed plunger that pushes against the cam cover. An early style cam cover has a button cast in that the plunger rides against. It's a little Rube Goldberg but none of it showed any undue wear after 240,000 miles so back in it goes. Yes, I cleaned it first and be aware that the plunger has a spiral groove to allow oil out.
10. I used my dial indicator to find TDC and the dots aligned right up. I will be degreeing this, but the only way to change installed LCA is to drill out the cam gear and install offset bushings. I hope it's right on.
