Harte123

Hi,new to the site,i did a ls2 swap in my c10,worked out great and is running great but i have about a 5 to 10 second delay on oil pressure on cold start,any advice would be great

G Atsma

Check with a mechanical gauge. Maybe a bad sender. It does OK after warm?

Harte123

allready did that and u can hear the lifters until the guage rises

Che70velle

iTrader: (6)

How many miles/condition on engine?
What oil are you running?

Harte123

Fresh rebuild 05 6.0 vette engine,5w 30 oil,after the delay the oil pressure quickly goes to around 40 psi,it seems like bleed back as i have to leave it sit a while for it to do it again

Che70velle

iTrader: (6)

Remote oil filters or oil cooler setup?

Harte123

Nope and engine is bone stock

Che70velle

iTrader: (6)

So 40 psi cold, what’s your pressure at idle after warmup?
How many miles on oil/filter?

Harte123

Only about 40 miles on it since rebuild,a few hrs running time in yard,pressure only drops to around 35 when warm

Che70velle

iTrader: (6)

The oil filters on these LS engines are small, and clog easily. Any greases or pastes that “might” have been used when assembling the engine, along with debris from cylinder walls or what have you, end up in the filter. I’d try another filter. Don’t change the oil, just the filter. Take you what, 5 minutes? Worth a try.

Harte123

Yup,easy spot to start,thanks