I am putting a timing chain in a 66 273 that I bought to put in the 65 Barracuda so I can drive it this summer. I noticed that it didn’t have a cam plate bolt with a hole in it. It doesn’t appear to have been apart before. I checked a 65 273 that I know has been rebuilt and none of the bolts on it have the hole. Did these early LA motors not have this and how did they oil the chain and fuel pump eccentric?
273 cam plate bolt
- Thread starter B-onefan
- Start date
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Theres a slinger of sorts. If you look just under the big gear,left i believe the tab directs the slung oil onto the chain,in turn lubricating the eccentric.
Picture loses some resolution,is hard to see.
Picture loses some resolution,is hard to see.
I always drill a small hole in mine if they dont have one.
You can drill a 1/64" hole in the front galley plug and in the cam retailer. I ll post a picture in a bit.
Page 2 post 49 of my engine build thread. The link is below.
In some cases the factory only used three bolts and left the top one out for the oil hole....
Unconventional
Well-Known Member
But I can see it happening perfacar
Well-Known Member
if you leave out bolt it will loose oil pressure. mopar , used 3 bolts, and installed plugs at end of oil galley. just drill out a bolt and install it, also, the crank slinger does oil the chain and fuel eccentric.
prorac1
Well-Known Member
I have only seen the bolt with the hole on 340’s and High Performance 360’s with double roller timing chains. 273’s just had 4 bolts. Later small blocks had 3 bolts and a drip tab. Having retired from building engines, except my own, I have not seen plugs in the oil galleries, but know they did come that way on later engines.
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