Excelerate

97 Prelude with Mahle 8.5:1 Pistons with Eagle Rods, ARP Head/Main Studs, RC 550's, Cometic HG and a P28 ECU w/ Crome and a Turbonetics Turbo Kit.

The engine has a loud ticking noise at low RPM's that seems to subside with RPM's. It's possible that the engine noise overpowers the noise and it still exists but it's less audible with RPM's. Compression on the engine is good, pretty much 210 across the board with CYL 2 being 200. Visually under the valve cover everything looks fine and a valve adjustment was done. The sound almost sounds like a rod knock but it definitely sounds like it's coming from the head. Also it smokes when fully warmed up sometimes. However, there is no oil in the charge pipes right off the turbo ( I know this can be valve seals or ring lands). I'm trying to figure out this ticking/knocking noise. It's not just an injector ticking; it's pretty loud and more like a knock. And why would this car smoke when warmed up? The car still has great compression and has power. Any help would be appreciated.

p10hlm

auto or manual tensioner?

Excelerate

I'm not certain about the tensioner. Why does that make a difference in terms of the noise?

flight50

usually when i hear of smoke, its a block problem. like head gasket or fluid entering from somewhere. have you checked in on that.

Excelerate

Compression is good and there is no oil in the coolant and vice versa.

jdm knight

I have a similar problem with my h22 engine; It's a sleeved block with cp pistons and eagle rods. when the engine it's at idle everithing sounds normal but ones you rev the engine at between 1800 an 2000 rpm you can hear a clicking noise but when you go above that rpm the noise seems to dissapear. so far i haven't figure out the problem

jetlude

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Excelerate &raquo;</TD></TR><TR><TD CLASS="quote">97 Prelude with Mahle 8.5:1 Pistons with Eagle Rods, ARP Head/Main Studs, RC 550's, Cometic HG and a P28 ECU w/ Crome and a Turbonetics Turbo Kit.

The engine has a loud ticking noise at low RPM's that seems to subside with RPM's. It's possible that the engine noise overpowers the noise and it still exists but it's less audible with RPM's. Compression on the engine is good, pretty much 210 across the board with CYL 2 being 200. Visually under the valve cover everything looks fine and a valve adjustment was done. The sound almost sounds like a rod knock but it definitely sounds like it's coming from the head. Also it smokes when fully warmed up sometimes. However, there is no oil in the charge pipes right off the turbo ( I know this can be valve seals or ring lands). I'm trying to figure out this ticking/knocking noise. It's not just an injector ticking; it's pretty loud and more like a knock. And why would this car smoke when warmed up? The car still has great compression and has power. Any help would be appreciated.</TD></TR></TABLE>

You may have to pull the head and examine the pistons.

https://honda-tech.com/zerothread?id=1901519

H22Accord_guy

Check to see if it is your LMAs (lost motion assemblies) i had the same problem