Head Gaskets |
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Head Gaskets |
brandomc |
Sep 16 2009, 04:48 PM
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#1
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Member Group: Members Posts: 113 Joined: 14-May 09 From: los angeles california Member No.: 10,363 Region Association: Southern California |
I bought a engine last week that was supposedly a 1.7, but the guy didnt really know for sure. After looking at the case numbers, I think it might be a 1.8?? It starts with EB. I took all of the sheetmetal off to repaint it, and everything is really clean accept for around 1 of the cylinders between the head and the cylinder, it is black and kindof oily. I figure this is a leaky cylinder. Do i need new head gaskets? Or just retorque the head? Where do i get head gaskets? Pelican parts doesnt sell them. What should i do with this? It is supposed to be a fairly low mileage engine. Thanks
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VaccaRabite |
Sep 16 2009, 05:06 PM
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#2
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En Garde! Group: Admin Posts: 13,554 Joined: 15-December 03 From: Dallastown, PA Member No.: 1,435 Region Association: MidAtlantic Region |
It is surely a leak. If you did a compression and a leakdown test, you would likely find that cylinder to be leaky. Now go do compression (at least) and leakdown and report back
If you want to find a stop gap that MIGHT work, check the torque on the head. Maybe it is a little loose. If it is not loose, overtightening by a pound or two might close it up. This won't be a longtime fix, and I'll probably get flamed for suggesting it. But it can work for a while. Head gaskets were often removed and not replaced due to a tech note by VW for the T4 in the Bus. You engine may not have head gaskets at all. So - here are some of the possible causes for a head leak at the cylinder. 1) loose bolts. This is what you are hoping for. 2) blown head gasket (expect enthusiastic debate on the value of head gaskets - I don't run one in my car. Others do.) 3) Case at the base of the cylinders is collapsing. (rebuild time) 4) worn/cracked head 5) worn/cracked cylinder 6) any combination of the above, and other stuff that was not on the top of my head. Every used motor should be treated as a rebuildable core. Even the "great condition, low mileage" ones. Especially them, actually. (IMG:style_emoticons/default/smile.gif) Zach |
brandomc |
Sep 16 2009, 05:12 PM
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#3
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Member Group: Members Posts: 113 Joined: 14-May 09 From: los angeles california Member No.: 10,363 Region Association: Southern California |
It is surely a leak. If you did a compression and a leakdown test, you would likely find that cylinder to be leaky. Now go do compression (at least) and leakdown and report back If you want to find a stop gap that MIGHT work, check the torque on the head. Maybe it is a little loose. If it is not loose, overtightening by a pound or two might close it up. This won't be a longtime fix, and I'll probably get flamed for suggesting it. But it can work for a while. Head gaskets were often removed and not replaced due to a tech note by VW for the T4 in the Bus. You engine may not have head gaskets at all. So - here are some of the possible causes for a head leak at the cylinder. 1) loose bolts. This is what you are hoping for. 2) blown head gasket (expect enthusiastic debate on the value of head gaskets - I don't run one in my car. Others do.) 3) Case at the base of the cylinders is collapsing. (rebuild time) 4) worn/cracked head 5) worn/cracked cylinder 6) any combination of the above, and other stuff that was not on the top of my head. Every used motor should be treated as a rebuildable core. Even the "great condition, low mileage" ones. Especially them, actually. (IMG:style_emoticons/default/smile.gif) Zach So, it sounds like i shoud take the head off and inspect. Is that what you would reccomend? If i do that then do i need new gaskets, or are they reuseable? Sorry if these questions sound stupid, just new to air cooled motors. What would need to be done to the engine to remove the gaskets and get everything to seal back up without them? |
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