#106
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I'd email the photos to the seller (Jake?) and see what he says.
One question, do you still have the short loop of pipe attached to the oil ports on the case or has that changed? |
#107
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they are the smoked version of original vw golf (rabbit) MKI-II lights, so easy to find.
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'72 Squareback - 'The Pinkback' |
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I have contacted the seller immediately, he adviced me to keep using the lifters and finish the break-in. Other lifters may demage the cam and maybe I was using poor oil during the break in. I'm with Jason about bad casting, so not sure about putting them back. Tried, but was not able to get the same lifters as can't be purchased separately...so I got an other set from ebay, but it seems gambling to see if they go well with the cam. I hear you Humble and I'm afraid you're right..but maybe I will give a chance for the new lifters. If they work than it's happy end, otherwise tear down should be done. @Bruce: if you refer to the oil cooler adapter (red one), the answer is yes it is still connected with that pipe. Why are you asking that?
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'72 Squareback - 'The Pinkback' Last edited by Bogara_ZO; May 2nd 2011 at 11:17. |
#109
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Cams
Hi, one thing I have noticed about VW cams; the case hardness. I had a 2332 type one chew up some lifters just like that. It is my understanding that most cams come some-wat hardened. However the lifter are harden. From what I remember in the first start up we should run up the rpm to 2500-3000 for about one hour. This is supposed to season the cam, or equally hardened both parts. Something was of lessor hardness, no doubt. My question is, are you to believe that things won't go even more wrong? Even I a know nothing, knows better than that.
The problem is, with VW's doing a cam is just like doing a total overhaul. On my type IV project, I bought a cam from Pauter with a one inch base circle. I was told that the cam would not be any problems. Most sellers of cams don't harden their cams, they send them out. And I wonder just how much do they pay to have their cams tempered. I had my cam re-hardened to 61 Rockwell, I plan to buy a set of hardened 356 styled lifters to match my cam. At one point I want to try and do a roller cam setup. I went to Iskyderian camshafts. I was lucky enough to speak with Ed Iskyderian himself. He did not want to make a one time cam. But he did share something with me; he said roller cams are both equally hardened to the same hardness. Thus me having my cam hardened. I would not send the many bits of metal though out my engine. I also would buy a new cam and have it hardened myself. Lastly get a good set of lifters. On my 356 lifters I had a .020 oil hole laser drilled, did your lifter come with the oil hole? Is you lifters and bore re-bored for type one lifters. To much work and possible engine failure to chance it. Is the name Jake the same as Jake Raby? Once you damaged the hardend area, its just surface hardend. |
#110
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Hi,
I know in the States that is the common way to break-in an engine. I have read a lot about it and also Jake pointed my attention to this. However I understand the "why" in Europe it is not so popular. I don't know how did you do yours but I know a few engines that skipped this method and all of them still run great. Quote:
Yes, the complete valvetrain is from R.A.T., I wanted to purchase a complete set to avoid this kind of issues..but I called him "seller" bacause I really don't want anybody to feel that I'm saying it is Jake's fault, he is selling poor quality products or something like this. I just wanted to show you the facts and ask for your advice. As you can see on his website all the lifters has the oil hole and all of them are parkerized before be selled. The question is if it's a "user error" and we did something wrong or I'm just unlucky with this set of lifters (like the guys who help building the engine had similar issues with Schleicher and Scat parts as well). **** happens, no one can guarantee what" going on during the production. The bad thing I can't buy a new set of them
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'72 Squareback - 'The Pinkback' Last edited by Bogara_ZO; April 18th 2011 at 10:32. |
#111
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First, the engine had no sealing tinwear around it to isolate the fan intake from the hot air around the exhaust. The fan needs cool air to cool the engine. The photo might be out of date of course. Second, the case had an adapter connected to the oil cooler ports. The short hose linked the output back into the input. I couldn't see any oil cooler on the engine. A t4 with no oil cooler will overheat the oil which is used to cool the bottom end. Both these issues will overheat the engine but perhaps I missed something |
#112
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thanks!!!
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#113
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I have an external oil cooler mounted in front with hoses, fittings, thermostat whatever and have the tinwear as well but haven't installed them yet. Engine just have been put in the car and a few minutes later the spark-plug issue happened thus engine came out. I didn't drive the car at all so overheating is not a question at the moment.
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'72 Squareback - 'The Pinkback' |
#114
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Ok
Well, if you can't get a new set (cam/lifters), you will have to just drive it until you develop a engine mis. Good luck
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#115
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You can buy a set of those lifters alone. They are Scat Lube-A-Lobe lifters with SLR treatment (Polished/Parkerized). I think aircooled.net sells them. From what I see in the pix, it looks like there is still parkerizing in the pits.
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NO_H2O 72 1302 Smack Black GL 73 Bus (2L CIS Powered) 66 Beetle, 73 Standard Beetle 72 Pinzgauer 710M Volksport Kafer Gruppe |
#116
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Thanks for the useful information!!
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'72 Squareback - 'The Pinkback' |
#117
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A bit off topic
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#118
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I had some pits in the faces of my lifters (same brand). Not as many as you have. I put them back and ran thru the break-in ordeal (3000 RPM for 30 min.) again. Pulled them for inspection (also looked at the cam lobes). I did it a total of 4 times to be sure (total of 2 hrs at 3000 RPM). The faces polished up nice and they are running fine. I did not have any pits in the sides so I cant speak to that.
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NO_H2O 72 1302 Smack Black GL 73 Bus (2L CIS Powered) 66 Beetle, 73 Standard Beetle 72 Pinzgauer 710M Volksport Kafer Gruppe |
#119
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'72 Squareback - 'The Pinkback' |
#120
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after break-in put some ZDDP additive in the oil to protect it from further wear. Zinc was removed from most motor oils in the late 90's but most older non-cat equipped cars with flat tappet /lifters need it. The pits you see comes from the heat treating and will work harden further during the break-in procedure.
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