low oil pressure in 436 solid roller
Thread Starter
On The Tree
Joined: Jan 2002
Posts: 120
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From: Aloha, Oregon
low oil pressure in 436 solid roller Shirl at SDRE has come a long way on my Coupe. The color is beautiful, car looks bad a$z. We're now dealing with low oil pressure on the new 436 solid roller motor. Having heard of some solid lifter issues, Shirl tried a new set of Comp solid lifters; no change. So he pulled the solid roller stuff, installed a hyd cam and lifters; oil pressure good. So something with the setup is causing the low oil pressure. We're using Comp solid lifters, Trick Flow 7.900" pushrods, Jesel rockers, custom solid cam. There's been a post or two about solid lifters causing low oil pressure but I wanted to post here to solicit for any experiences other solid roller setup guys are having. Thanks in advance.
Robert
www.gen3motorsports.com
Robert
www.gen3motorsports.com
The Comp solid lifters will not work. the oil holes are too large and not oriented right. Some guys have been able to epoxy the hole inline with the oil passage and it has worked out for them. I personally would grab the Comp lifter...call Comps warranty dept and get the refund for them. they are aware of this issue no matter what they tell you. They should refund the full purchase price.
Call up HPE or one of the other sponsors that carries the Morel solid lifters. They work just fine. You will need new pushrods though because the lenghts will be different.
Call up HPE or one of the other sponsors that carries the Morel solid lifters. They work just fine. You will need new pushrods though because the lenghts will be different.
PS...hopefully you didnt spin the motor up alot. The lifters allow all the oil to be pumped to the top of the motor under the valve covers. have any oil leaking from the valve covers??? 
Smoking on the dyno??? thats why.
It will also cause foaming and bubling and loss of oil to the main and rod bearings. Dont ask me how i know this
Smoking on the dyno??? thats why.It will also cause foaming and bubling and loss of oil to the main and rod bearings. Dont ask me how i know this
Thread Starter
On The Tree
Joined: Jan 2002
Posts: 120
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From: Aloha, Oregon
Great info, 383. This definitely makes sense. We will look into the Morel lifters you suggest. Awesome info. Also, what length pushrods you using with the Morels? It would be nice if the 7.900 pushrods we have would work with them, save me the cost of another length set.
Robert
www.gen3motorsports.com
Robert
www.gen3motorsports.com
Last edited by nitrousc5; Oct 11, 2005 at 10:13 AM.
They definately wont work. My combo with the Comp lifter was using a 7.750 pushrod. After putting in the Morels I had to go to 7.100. HUGE difference.
Also...Im serious about giving Comp a call. Talk to "Red" in warranty dept. He was fantastic and Comp delt with my situation the right way.
Also...Im serious about giving Comp a call. Talk to "Red" in warranty dept. He was fantastic and Comp delt with my situation the right way.
Thread Starter
On The Tree
Joined: Jan 2002
Posts: 120
Likes: 0
From: Aloha, Oregon
I like the idea of a shorter pushrod. I just may go with these Morels. I have an acct with Thunderracing so I just may order them. They should be able to get me shorter pushrods, too. since the shorter length gives us some reciprocating mass savings, we could beef up to a 3/8" thick pushrod.
I will be sure to call Comp and talk to him. Would be great to get our $$ back!! Again, awesome info, really appreciate it!!
robert
www.gen3motorsports.com
I will be sure to call Comp and talk to him. Would be great to get our $$ back!! Again, awesome info, really appreciate it!!
robert
www.gen3motorsports.com
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Originally Posted by danf1000
low oil pressure is indicative of bad fit or misalignment. oil is gushing everywhere rather than following it's intended path.
can you please explain. is it possible to misalign a lifter.
i have installed morel solid lifters on my setup but they failed. low oil pressure was still a major issue, and after a while the engine started to misfire once in awhile. i took the heads off to find out the retaining clips on the lifters had come out. after looking at the lifters, i saw that the groove in which the retaining clips goes into has a taper upwards(towards the cylinder head side), which was the main reason for the clips coming out with the help of oil pressure(major machining flaw) also i think the retaining clip could have been one size larger. if it had been one size larger it would not have come out, although its a bit hard to install, but it can be done. the oiling hole is also way to large and the lifters design allows way too much oil to go through the pushrod, which lowers the oil pressure. i now put on bigger retaining clips and lowered the size of the inlet hole to 1mm thats about 0.039 inches. will let you know of the results.
On The Tree
Joined: Feb 2005
Posts: 178
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From: Odessa, TX
Jesel sells two different type lifters to control the oil pressure. One for bushed blocks and not bushed. There bushing they sell has a small hole to prevent an oil bath to the top of the engine. They may cost 2000+ dollars but it will be the last lifter you buy for a while.
Heh, hey, I have some almost bran new jesels for $500, originally $2300. They are $2300 and will require a bushing with a .050" oiling whole but are super super nasty and will not have any of the silly plastic lifter guide problems (they are a captive tie bar design)
